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[smilesdavis]

ADAT gives Mac OS 9 rigs driver-independent access to standalone converters from any era. The Mac still needs an OS9-compatible ADAT host interface. OS9 host = direct Mac OS 9 computer/driver support for the listed unit; standalone ADAT conversion itself needs no OS9 driver.
↔ AD+DA•→ analog→ADAT•← ADAT→analog•Config:* host-set/retained•*v volatile disconnect•*fw firmware-dependent•◎ native•× none•? unresolved•— N/A•OS9:✓ yes•× no•? unresolved•— N/A•number=ADAT banks @44.1/48kHz•IC:!confirmed•~probable/inferred/conflicting•blank=unknown

Date	ManufacturerMackie Soundscape / Apogee	ModelPlatinum OctoPre + Digital Option	ADAT	Config	OS9 host	Converter ICs
'95	Studer	D19 MicAD	→	—	—	!AD:4× CS5390-KP ('93)•8ch•20-bit•64× oversampling
'95	Otari / Creation Technologies	RADAR I + ADATLink	↔ 3×	◎	—	!AD+DA: 16-bit•ICs unresolved
'95	Yamaha	02R + 1–4× CD8-AT	↔ 1–4×	◎	—
'95–'96	RSP Technologies	Project X + ADAT I/O	↔	◎	—
'96	Studer	D19 MultiDAC + ADAT module	←	—	—	!DA:8× CS4329-KP ('95)•20-bit stereo ΔΣ DAC•Studer spec:8×23-bit DA
'96	Korg	DRS 168RC	↔ 2×	◎	—	!AD: SAA7366T ('94)•DA: TDA1305T ('94)
'96	Korg	SoundLink 880 A/D	→	◎	—	~AD: ≈ 4× SAA7366T ('94) — 18-bit bitstream•DR ≥90 dB•18–53 kHz•~SAA7366T ('94) confirmed in DRS 168RC
'96	Korg	SoundLink 880 D/A	←	◎	—	!DA: 4× TDA1549T ('95)
'96	Soundscape	SS8IO-1	↔	◎	—	!1996 launch spec: AD 18-bit•DA 20-bit•!1997: Crystal 20-bit AD+DA (exact ICs not stated)
'96	Soundtracs	Virtua	↔ 2×	◎	—
'97	Apogee	AD-8000 + ADAT8 AMBus + DAC-8	↔	—	—	!AD: 4× AK5391 ('96)•~DA: ≈ AD1851 ('90) (AD-8000SE report)
'97–'98 docs	CreamWare	A8	↔ 1×	◎	—	!AD+DA:18-bit; 128×; exact ICs unresolved; original A8/A16 manual despite host filename
'97–'98 docs	CreamWare	A16	↔ 2×	◎	—	!AD+DA:18-bit; 128×; exact ICs unresolved
'97	Otari / Creation Technologies	RADAR II + ADATLink	↔ 3×	◎	—	!AD+DA: 24-bit•ICs unresolved
'97	Yamaha	03D + CD8-AT	↔ 1×	◎	—	!AD: AK5390 (CH1–2), AK5380 (other input circuits) • DA: PCM1702P (stereo/monitor), PCM69AU (aux/bus)
by '97	Frontier Design	Zulu	← 1×	◎	—	!20-bit; 8 DA / only 4 AD; exact ICs unresolved
'98	Fostex	D-160	↔	—	—
'98	MOTU	2408	↔	—	✓ 3×	~AD: 20-bit 64וDA: 20-bit 128וICs unresolved
'98	Frontier Design	Tango (eight-input configuration)	↔	—	—	!DA: 4× CS4327-KS ('95)•20-bit stereo ΔΣ•128ו8 outputs; ADC population 0/4/8 by configuration
'98	Midiman	Pipeline 8x8	↔	—	—
'98	MusicNet	AD/24	→	—	—	!AD: 4× CS5394-KS ('96)
'98	MusicNet	DA/24	←	—	—	!DA: 4× CS4390-KS ('97)
'98	Sonorus	AudI/O AD/24 (MusicNet re-brand)	→	—	—	!AD: 4× CS5394-KS ('96)
'98	Sonorus	AudI/O DA/24 (MusicNet re-brand)	←	—	—	!DA: 4× CS4390-KS ('97)
'98	Yamaha	01V + MY8-AT	↔ 1×	◎	—
'98	Mackie	Digital 8•Bus / d8b + DIO-8	↔ 1–4×	◎	—
'98	Spirit by Soundcraft	Digital 328	↔ 2× + → 1× aux	◎	—	!AD+DA: 24-bit•128וICs unresolved
'98	Soundtracs	DPC-II + ADAT I/O modules	↔	◎	—	!AD+DA: 24-bit•ICs unresolved
'98–'99	Panasonic / Ramsa	WR-DA7 + 1–3× WR-ADAT	↔ 1–3×	◎	—	!AD: 24-bit•ICs unresolved
'99	Lucid	ADA8824 + ADAT	↔	—	—	~AD: ≈ AK5392 ('98)•DA: ≈ AK4324 ('97)
'99	RME	ADI-8 PRO	↔	◎	—	!1G: AD AK5392 ('98)•DA AD1855 ('98)•2G: AD AK5392 ('98)•DA AD1852 ('99)
'99	Fostex	VC-8	↔	◎•44.1k internal / 48k external	—	!AD+DA: 4× AK4522 • 20-bit stereo codecs
'99	Frontier Design	Tango24	↔	◎	—	!AD+DA: 24-bit • exact ICs unresolved
'99	Alesis	AI-3	↔	—	—	!AD+DA: 4× CS4220 • U57–U60 • main PCB Rev B
'99	Swissonic	AD24	→	—	—	!AD: 4× CS5394-KS ('96)
'99	Swissonic	DA24	←	—	—	!DA: 4× CS4390-KS ('97)
'99	Sonorus	AUDI/O Modular/8	↔	—	—
'99	TASCAM	TM-D4000 + IF-LP4000 (TM-D4000A: 2× std)	↔ 1–3×	◎	—	!AD+DA: 24-bit•ICs unresolved
'99	Fostex	VM200	↔ 1×	◎	—	!AD: 4× AK7712A-VT integrated ADC/DSP • DA: integrated in U501/U502 • 20-bit conversion
'99	LEM / General Music	Falcon + Lightpipe interface	↔ 1×	◎	—	!AD+DA: 20-bit•ICs unresolved
'00	Echo	Layla24	↔	?	✓ 1×
'00	Panasonic / Ramsa	WR-A200 (ADAT Option)	↔	—	—
'00	PreSonus	DigiMax (original 48 kHz)	→ 1×	◎	—	!AD:4× AL1101; U1–U4; 400-DMAXADC Rev A, 2000-08-22; indexed factory schematic
'00	Soundscape	iBox 8-XLR/24 (SSIO8)	↔	◎	—	!24-bit AD+DA•~≈ Crystal (ICs unresolved)
'00	Steinberg / RME	Nuendo 8 I/O	↔	◎	—	~≈ ADI-8 PRO: AD AK5392 ('98)•DA AD1855 ('98)/AD1852 ('99) by revision
'00	Panasonic	WZ-AD96	→	—	—
'00	Panasonic	WZ-AD96M	→	—	—
'00	Panasonic	WZ-DA96	←	—	—
'00	MOTU	2408 MkII	↔	—	✓ 3×	~AD+DA: ≈ 4× CS4223-KS ('98)
'00	RME	ADI-8 DS	↔	◎	—	!AD: AK5393 ('00)•DA: AD1853 ('99)
'00	iZ Technology	RADAR 24 + ADAT Lightpipe I/O	↔ 3×	◎	—	!AD+DA: 24-bit•Classic/Nyquist/S-Nyquist options•ICs unresolved
'00	Yamaha	DA824 + MY8-AT	← 1×	◎	—	!DA:4× AK4393; IC002–IC005; AK4393-VF-E2 in May 2000 service manual
by '00	Yamaha	AD824 + MY8-AT (July 2000 service manual)	→	◎	—	!AD: 24-bit•128וIC unresolved
by '00	Mytek	8X96 ADC + ADAT MDM card	→ 1×	◎	—	24-bit; ICs unresolved
by '00	Mytek	8X96 DAC + ADAT MDM card	← 1×	◎	—	24-bit; ICs unresolved
'01	RME	Multiface	↔	*v	✓ 1×	!AD+DA: AK4528VF ('00)
'01	MOTU	896	↔	×	✓ 1×	~AD: ≈ 4× AK5383 ('00)•DA: ≈ 4× AK4393 ('00)
'01	ST Audio / Hoontech	DSP2000 C-Port + DS2000	↔	×	×	!AD+DA: AK4524 ('98) (ADC&DAC2000)
'01	CreamWare	A16 Ultra	↔	—	—
'01	Metric Halo	Mobile I/O 2882	↔	*	✓ 1×	!AD: 4× AK5383 ('00)•DA: 4× AK4393 ('00) + 1× AK4393 ('00) phones
'01	Steinberg / RME	Nuendo 8 I/O 96k	↔	◎	—	!AD: AK5393VS ('00)•DA: AD1852 ('99)•~ADI-8 DS hardware
'01	Genex	GXA8 + ADAT I/O	→	◎	—	~AD: AK5394 ('02) PCM•PCM1804 ('02) DSD
'01	Genex	GXD8 + ADAT I/O	←	◎	—	~DA: CS4397 ('00)
'01	MOTU	828	↔	×	✓ 1×	~AD+DA: CS4223-KS ('98)•Main DA: AK4321VF ('99)
'01	Fostex	AC2496	→	◎	—	!AD: AK5393 ('00)•24-bit•128×
'01	Prism Sound	ADA-8 + ADAT I/O module	↔	◎	—	!AD+DA: 24-bit•ICs unresolved
'01	Alesis	ADAT HD24	→ or ← 3וglobal input-select	◎•ALL INPUT monitoring	—	!24-bit conversion • standard-board exact ICs unresolved
by '01	Apogee	DA-16 (original, non-X)	← 2×	◎	—	16 DA; ICs unresolved
by '01	Digital Audio Denmark	ADDA 2408 + ADAT + 2× four-channel DA modules	↔ 1×	◎	—	8 AD; 8 DA requires both DA modules; ICs unresolved
by '01	Merging Technologies	Sphynx + 4× stereo AD + 4× stereo DA modules	↔ 1×	◎; normal mode for ADAT input	—	24-bit; module-dependent; ICs unresolved
'01 manual	Behringer	DDX3216 + ADT1616	→ 2×	◎	—	16 analog inputs; eight independent DA outputs not established; ICs unresolved
'02	Focusrite	Platinum OctoPre + Digital Option	→	—	—	!AD: AK5383 ('00)
'02	PreSonus	FireStation	↔	—	✓ 1×	~AD+DA: ≈ 4× AK4528VF ('00)
'02	MOTU	2408 Mk3	↔ 3וsource-select•8 analog ch duplicated	◎	✓ 3×	AD+DA:!4×AK4528VF ('00)
'02	Digidesign	Digi 002 Console	→	◎	✓ 1×	~AD: ≈ 4× AK5383VS/VSP•DA: ≈ 4× AK4393VS ('00)
'02	Terratec	EWS88 MT / EWS88 D	↔	×	✓ 1×	~EWS88 MT: ≈ 4× AK4524 ('98)•!EWS88 D: 8-ch path digital-only; separate 18-bit stereo SystemSound DA
'02	ST Audio / Hoontech	ADC&DAC3000 (DSP3000 M-Port rack)	↔	◎	—	!AD: CS5396 ('97)•DA: AK4393 ('00)
'02–'03	PreSonus	DigiMax LT	→	—	—
'02	RME	ADI-8 AE	↔	◎	—	!AD: AK5383 ('00)•DA: AD1853 ('99)
'02	Mackie Soundscape / Apogee	I/O 896	↔	◎	—	~AD+DA: Apogee-designed 24-bit•ICs unresolved
'02	Swissonic	AD24 MkII	→	—	—	~AD: ≈ 4× CS5394-KS ('96)
'02	Swissonic	DA24 MkII	←	—	—	!DA: 4× CS4390-KS ('97)
'02	Yamaha	DM2000 + MY16-AT	↔	◎	—	!AD: AK5393-VS ('00)•DA: AK4393 ('00)
'02	Yamaha	02R96 + MY16-AT	↔	◎	—	!AD: AK5383-VS ('00)•DA: AK4393 ('00)
'02	Digidesign	192 I/O	↔	×	✓ 1×	~AD: AK5394A ('02)•DA: AK4394 ('99)
by '02	Apogee	AD-16 (original, non-X)	→ 2×	◎	—	16 AD; ICs unresolved
by '02	Apogee	Trak2 + ADAT8 AMBus + Trak2/8DA	← 1×	◎	—	8 DA option; only 2 AD; NOT AD-8000 DAC-8; ICs unresolved
'03	Apogee	Rosetta 800	↔	—	—	!AD: 4× CS5361-KZZ ('02)•DA: 4× AD1852JR5Z ('99)
'03	Focusrite	ISA 428 + ADC Option	→	—	—	~original 2003 ADC-card IC unresolved•!later retrofit card: PCM4220 ('06)
'03	Behringer	ADA8000	↔	—	—	!Original revision: AD AL1101 / DA AL1201G • later revision: CS4270 AD+DA • changeover serial unresolved
'03	Edirol	UA-1000	↔	*	—
'03	MOTU	828 MkII	↔	*	✓ 1×	!AD+DA: 5× AK4528VF ('00)•Main Out DA: AK4382A ('00; A '01)
'03	PreSonus	DigiMax 96k	→	—	—
'03	ST Audio / Hoontech	ADAM24	↔	◎	—	!AD+DA: AK4524 ('98)
'03–'04	MOTU	896HD	↔	*	✓ 1×	~AD: ≈ AK5385 ('03)•DA: ≈ AK4382-family
'03	Digidesign	Digi 002 Rack	↔	×	×	~AD: AK5383-VS ('00)•DA: AK4393 ('00)
'03	Alesis	DEQ830	↔ 1×	◎	—	!AD+DA: 24-bit•8ch•ICs unresolved
'03	Yamaha	01V96	↔ 1×	◎	—	!AD+DA: 24-bit•ICs unresolved
'04	Aphex	Model 141	←	—	—
'04	M-Audio	Octane	→	—	—
'04	M-Audio	FireWire 1814	↔	×	✓ 1×	~AD: ≈ AK5385A ('03) (In 1–2) + AK5381 ('03) (In 3–8)•DA: ≈ AK4358 ('03)
'04	Mackie	Onyx 800R	→ 2 optical outs; 8 unique ch @48k	◎	—	!AD: 4× AKM devices in reviewed unit • exact part unresolved
'04	SM Pro Audio	PR8 MKII + ADAT Option	→	—	—
'04	Yamaha	i88X	↔	×	✓ 1×	!AD: 3× CS5351-KSR ('02) + 1× AK5383-VS ('00)•DA: 4× AK4382A ('00; A '01) + 1× AK4393 ('00)
'04	TASCAM	FW-1804	→	*	✓ 1×	~AD+DA: ≈ 4× AK4528VF ('00)
'04	E-MU	1820	↔	×	—	!AD: PCM1804 ('02)•DA: CS4392 ('01)
'04	E-MU	1820M	↔	×	—	!AD: AK5394 ('02)•DA: CS4398 ('02)
'04	RME	OctaMic + ADC Module	→	◎	—
'04	RME	OctaMic D	→	◎	—
'04	RME	Fireface 800	↔	*	—	!DA: AK4395 ('00); ~Mar ’05 → AK4396 ('04)•~AD: ≈ AK5385 ('03)
'04	Apogee	AD-16X	→	—	—	!AD: CS5381 ('02)
'04	Apogee	DA-16X	←	—	—	!DA: AD1955 ('02)
≤2004	Alesis	ADAT HD24XR / HD24 + EC-2	→ or ← 3וglobal input-select	◎•ALL INPUT monitoring	—	!AD: AK5393 • DA: AK4393
'05	Focusrite	OctoPre LE + CODEC Option	↔	—	—	~8-ch 24-bit AD+DA CODEC option; ICs unresolved
'05	Audient	ASP008 + ADC Option	→	◎	—	!AD: WM8786
'05	Lynx	Aurora 8 + LT-ADAT	↔	—	—	!AD: CS5381 ('02)•DA: CS4398 ('02)
'05	MOTU	Traveler	↔	*	—	!AD: 4× AK5385A ('03)•phones DA: AK4382A ('00; A '01)•~main DA unresolved
'05	M-Audio	ProjectMix I/O	↔	?	—	~AD: ≈ AK5381 ('03)•DA: ≈ AK4358 ('03)
'05	Echo	Layla 3G	↔	?	—	!AD+DA: CS4272 ('03)
'05	SM Pro Audio	EP84 + ADAT Option	→	—	—
'05	SM Pro Audio	A08 (AO8)	→ 1×	◎	—
'05	ESI	EX8000	↔	◎	—	~AD: AK5394A ('02)•DA: AK4395 ('00)
'05	RME	Multiface II	↔	*v	✓ 1×	~AD+DA: AK4620A ('05)
'05	iZ Technology	RADAR V + ADATLink II	↔ 3×	◎	—	!AD+DA: 24-bit•≤192kHz•ICs unresolved
'05 docs	Lynx	Aurora 16 + LT-ADAT	↔ 2×	◎; firmware ≥12	—	16 channels at 44.1/48; 8 at 88.2/96; ICs not newly verified
'06	Apogee	Ensemble FireWire	↔	*	—	!AD+DA: 4× CS4272 ('03)•phones DA: 2× CS4392 ('01)
'06	PreSonus	DigiMax FS	↔	—	—
'06	MOTU	8pre FireWire	→	—	—	!AD: 4× AK5385AVS ('03)•DA: AK4382AT ('00; A '01)
'06	PreSonus	FireStudio 26x26	↔	*fw	—	~AD: ≈ AK5384 ('03)•DA: ≈ AK4358 ('03)
'06	Focusrite	Saffire Pro 26 I/O	↔	*	—	~AD+DA: ≈ CS4272 ('03)
'06	RME	Fireface 400	↔	*	—	~AD+DA: ≈ AK4620A ('05)
'06	RME	Micstasy	→	◎	—	!AD: CS5381 ('02)
'06	Mackie	Onyx 1200F	↔	*	—	!AD: AK5385 ('03)•DA: AK4358 ('03)
'06	Mytek	8x192 ADDA + DIO ADAT	↔	◎	—	!AD: PCM4202 ('03)•DA: AD1955 ('02)
'06	Lucid	88192	↔	◎	—	!AD+DA: 24-bit ΔΣ•ICs unresolved
'07	Alesis	iO|26	←	×	× 2× IN	~AD: ≈ CS5361 ('02)
'07	RME	OctaMic II	→	◎	—	!AD: AK5385 ('03)
'07	SSL	Alpha-Link AX	↔	—	—
'07	SSL	Alpha-Link MADI-AX	↔	—	—
'07	Focusrite	ISA 828 + ADC Option	→	—	—	!AD: PCM4220 ('06)
'07	SM Pro Audio	Q-ADAT	→	—	—
'07	Phonic	Firefly 808 Universal	↔	*	—
'07	Prism Sound	Orpheus	↔	*	—	~AD: ≈ CS5381 ('02)•DA: ≈ CS4398 ('02)
'07–'08	TC Electronic	Studio Konnekt 48	↔	*	—	~AD: ≈ AK5358 ('05)/AK5359 ('05)•DA: ≈ AK4359 ('04) + AK4385 ('03)
'07	RME	ADI-8 QS	↔	◎	—	!AD: CS5381 ('02)•~DA: IC unresolved
'07	Digidesign	003 family	↔	×	×	~AD: CS5361/CS5381 ('02)•DA: CS4392 ('01)
≤2007	Marian	ADCON	↔ 1×	◎	—	!24-bit AD+DA • exact ICs unresolved
'08	M-Audio	ProFire 2626	↔	*	—	~AD+DA: ≈ AK4620 ('05)
'08	MOTU	828 Mk3	↔	*	—	~AD: ≈ CS5364 ('05) + CS5368 ('05)•DA: ≈ AK4358 ('03) + AK4382 ('00) + AK4396 ('04)
'08	MOTU	896 Mk3	↔	*	—
'08	MOTU	Traveler Mk3	↔	*	—	!AD: 2× CS5368 ('05)•DA: AK4358 ('03) + AK4382 ('00)
'08	PreSonus	DigiMax D8	→	—	—
'08	Steinberg	MR816 X	↔	*	—	!AD: AK5385BVF-E2 ('03)•DA: AK4358VQ ('03)
'08	Steinberg	MR816 CSX	↔	*	—	!AD: AK5385BVF-E2 ('03)•DA: AK4358VQ ('03)
'08	Allen & Heath	ZED-R16	↔	*v	—	!AD: CS5368 ('05)•DA: PCM4104 ('04)•Main AD+DA: CS4271 ('03)
'08	iZ Technology	ADA + ADATLink II	↔ 3×	◎	—	!AD+DA: 24-bit•48–192kHz•ICs unresolved
'09	Focusrite	Saffire Pro 40	↔	*	—	!AD+DA: 4× CS4272 ('03)•Main Out DA: CS4392 ('01)
'09	Focusrite	Liquid Saffire 56	↔	*	—	~AD+DA: ≈ CS4272 ('03)
'09	Focusrite	OctoPre MkII	→	—	—	!AD: CS4272 ('03)
'09	Focusrite	OctoPre MkII Dynamic	↔	—	—	!AD+DA: CS4272 ('03)
'09	ART	TubeOpto8	↔ 1×	◎	—
'09–'10	Echo	AudioFire Pre8	↔	*	—	!AD+DA: AK4620B ('05)
'09	RME	Fireface UC	↔	*	—	~AD+DA: ≈ AK4621 ('10)
'09	RME	M-32 / M-16 AD	→	◎	—
'09	RME	M-32 / M-16 DA	←	◎	—
'09	Echo	AudioFire 8 (2009 ADAT)	↔	*	—	~AD+DA: AK4620B ('05)
'10	Apogee	Symphony I/O 8x8	↔	*	—	!AD: 4× CS5381 ('02)•~DA: ≈ ES9018 ('08) (8×8 chip remarked “Apogee DAC”; 2×6 exposes ES9018 ('08))
'10	Universal Audio	4-710d	→	—	—
'10	RME	Fireface UFX	↔	*	—	!AD: CS5368 ('05)•DA: PCM4104 ('04)
'10	Ferrofish	A16 MK-II	↔	◎	—	!AD+DA: 8× AK4620B ('05)
'10	Avid	HD I/O 8x8x8	↔	×	×	~AD: CS5381 ('02)•DA: PCM1794 ('03)
'10	Focusrite	ISA 428 MkII + ADC Option	→	—	—	!AD: 8-ch 24/192•IC unresolved
'11	Mackie	Onyx Blackbird	→	*	—
'11	MOTU	828 Mk3 Hybrid	↔	*	—
'11	MOTU	896 Mk3 Hybrid	↔	*	—
'11	PreSonus	AudioBox 1818VSL	↔	×	—
'11–'12	Steinberg	UR824	↔	*	—	~AD: ≈ AK5385BVF ('03)•DA: ≈ WM8740SEDS ('00) + WM8728SEDS ('04)
'12	Midas	XL48	→	—	—
'12	SM Pro Audio	PEQ8V + ADAT Option	→	—	—
'12	Universal Audio	Apollo	↔	*	—	!AD: 2× AK5388 ('09)•DA: 4× CS4398 ('02)•~phones DA: ≈ AK4480 ('10)
'12	RME	Fireface UCX	↔	*	—
'12	RME	ADI-8 DS Mk III	↔	◎	—	~AD: ≈ AK5388•DA unresolved
'12	iZ Technology	RADAR 6 + ADATLink II	↔ 3×	◎	—	!AD+DA: Classic 96 / Ultra Nyquist•ICs unresolved
'12	iZ Technology	ADA II + ADATLink II	↔ 3×	◎	—	!AD+DA: Classic 96 / Ultra Nyquist•ICs unresolved
'13	Antelope Audio	Orion 32	↔	?	—
'13	Behringer	ADA8200	↔	—	—	!AD+DA: CS4270 stereo codecs
'13	Behringer	FCA1616	↔	×	—
'13	Focusrite	Scarlett 18i20 1G	↔	*	—	!AD+DA: 4× CS4272 ('03)•extra DA: CS4392 ('01)
'13	MOTU	8pre USB	→	—	—
'13	RME	OctaMic XTC	→	◎	—	!AD: AK5388 • headphone DAC unresolved
'13	Ferrofish	A16 AE	↔	◎	—	~AD+DA: AKM 24-bit•IC unresolved
'14	Apogee	Ensemble Thunderbolt	↔	*	—
'14	Audient	ASP880	→	◎	—	!AD: 4× PCM4220 ('06)
'14	Prism Sound	Titan	↔	*	—
'14	RME	Fireface 802	↔	*	—	!original: AD 3× AK5388A ('09; A '14)•DA 3× AK4414 ('12)•~Rev E: ≈ AK5574EN ('15) / AK4490REQ ('14; R '22)
'14	MOTU	1248	↔	*	—
'14	MOTU	8M	↔	*	—
'14	MOTU	16A	↔	*	—
'14	MOTU	828x	↔	*	—
'14	Behringer	X32 + X-ADAT	↔ 4×	◎	—
'15	Antelope Audio	MP8d	→	—	—
'15	Audient	ASP800	→	◎	—	!AD: 2× PCM4204 ('04)
'15	Antelope Audio	Orion32+	↔	?	—
'15	Antelope Audio	Orion Studio	↔	?	—
'15	Focusrite	Clarett 8Pre TB	↔	*	—	~AD: ≈ AK5388 ('09)•DA: ≈ AK4413 ('12)•phones: ≈ CS4398 ('02) (8PreX confirmed; 8Pre inferred)
'15	Focusrite	Clarett 8PreX	↔	*	—	!AD: 2× AK5388 ('09)•DA: 2× AK4413 ('12)•phones DA: CS4398 ('02)
'15	PreSonus	Studio 192	↔	*	—	~AD: ≈ PCM4204 ('04)•DA: ≈ PCM4104 ('04)
'15	PreSonus	DigiMax DP88	↔	—	—
'15	TASCAM	US-20x20	↔	◎	—
'15	MOTU	24Ai	→	*	—
'15	MOTU	24Ao	←	*	—
'15	Universal Audio	Apollo 8	↔	*	—
'15	Universal Audio	Apollo 8p	↔	*	—
'15	Zoom	UAC-8	↔	*	—
'15	Zoom	TAC-8	↔	*	—
'15	iZ Technology	RADAR studio + ADATLink II	↔ 3×	◎	—	!AD+DA: Classic 96 / Ultra Nyquist•ICs unresolved
'15	Dangerous Music	CONVERT-8	←	◎	—	!DA: AD1955 ('02)
'16	Apogee	Symphony I/O MkII 8x8 + 8MP	↔	*	—	!AD: 4× AK5388AEQ ('09; A '14)•DA: ES9018 ('08)
'16	Focusrite	Red 8Pre	↔	*	—	!AD: AK5388 ('09)•DA: AK4413 ('12)•!parallel-path converter summing
'16	Focusrite	Scarlett 18i20 2G	↔	*	—	~AD+DA: ≈ CS4272 ('03)
'16	RME	Fireface UFX+	↔	*	—	!AKM: AD 3× AK5388AEQ ('09; A '14)•DA 3× AK4414EQ ('12)•~later ESS revision confirmed by RME firmware; ICs unresolved
'16–'17	Focusrite	Clarett OctoPre	↔	—	—	~AD: ≈ AK5388 ('09)•DA: ≈ AK4413 ('12) (≈ Clarett 8Pre platform; OctoPre ICs unverified)
'16	Ferrofish	A32	↔	◎	—	!AD: 4× CS5368 ('05)•DA: 4× CS4365 ('04)
'16	Focusrite	Red 4Pre	↔	*	—	!AD+DA: parallel-path summing•DR: AD 118dB/DA 121dB•ICs unresolved

[smilesdavis]

ADAT gives Mac OS 9 rigs driver-independent access to standalone converters from any era. The Mac still needs an OS9-compatible ADAT host interface. OS9 host = direct Mac OS 9 computer/driver support for the listed unit; standalone ADAT conversion itself needs no OS9 driver.
↔ AD+DA•→ analog→ADAT•← ADAT→analog•Config:* host-set/retained•*v volatile disconnect•*fw firmware-dependent•◎ native•× none•? unresolved•— N/A•OS9:✓ yes•× no•? unresolved•— N/A•number=ADAT banks @44.1/48kHz•IC:!confirmed•~probable/inferred/conflicting•blank=unknown

Date	ManufacturerMackie Soundscape / Apogee	ModelPlatinum OctoPre + Digital Option	ADAT	Config	OS9 host	Converter ICs
'17	Antelope Audio	Discrete 8	↔	?	—
'17	Focusrite	Scarlett OctoPre	→	—	—	~AD: ≈ CS4272 ('03) (2G Scarlett / OctoPre platform; board ICs unresolved)
'17	Focusrite	Scarlett OctoPre Dynamic	↔	—	—	~AD+DA: ≈ CS4272 ('03) (2G Scarlett converter platform; board ICs unresolved)
'17	RME	Fireface UFX II	↔	*	—	!Rev 7: AD AK5574 ('15)•DA AK4490REQ ('14; R '22)•~earlier: UFX+ analog board; refreshed UFX II = UFX III analog board
'17	PreSonus	Quantum	↔	?	—	~AD: AK5574EN • DA: AK4413EQ • headphone DAC unresolved
'17	Prism Sound	Atlas	↔	*	—
'17	Ferrofish	A32 Dante	↔	◎	—	!AD: 4× CS5368 ('05)•DA: 4× CS4365 ('04)
'17	Ferrofish	PULSE16	↔	◎	—	!AD: 2× CS5368 ('05) or 4× ES9840 ('20) (by revision)•DA: 2× CS4365 ('04)•!ES9840 ('20) ordering part: ES9840Q ('20)
'17	Eventide	H9000	↔ 1×	◎	—
'18	Focusrite	Clarett 8Pre USB	↔	*	—	~AD: ≈ AK5388 ('09)•DA: ≈ AK4413 ('12) (original Clarett USB family; 4Pre USB confirmed)
'18	Focusrite	Red 16Line	↔	*	—	!AD: AK5388 ('09)•DA: AK4413 ('12)•same modular converter boards documented for Red 8Pre / 16Line
'18	MOTU	828es	↔	*	—
'18	MOTU	8pre-es	↔	*	—
'18	Universal Audio	Apollo x8	↔	*	—
'18	Universal Audio	Apollo x8p	↔	*	—
'18	Ferrofish	PULSE16 MX	↔	◎	—	!AD: 2× CS5368 ('05) or 4× ES9840 ('20) (by revision)•DA: 2× CS4365 ('04)•!ES9840 ('20) ordering part: ES9840Q ('20)
'18	Ferrofish	PULSE16 DX	↔	◎	—	!AD: 2× CS5368 ('05) or 4× ES9840 ('20) (by revision)•DA: 2× CS4365 ('04)•!ES9840 ('20) ordering part: ES9840Q ('20)
'18	Universal Audio	Apollo x6	↔	*	—	~AD: AK5578EN ('15)•DA: 2× ES9016S ('09)
'19	Antelope Audio	Discrete 8 Synergy Core	↔	*	—
'19	Arturia	AudioFuse 8Pre	↔	—	—
'19	Antelope Audio	Orion Studio Synergy Core	↔	*	—
'19	Cranborne Audio	500ADAT	↔	—	—
'19	Focusrite	Scarlett 18i20 3G	↔	*	—	!AD+DA: CS4272 ('03) stereo codecs
'19	Steinberg	UR816C	↔	*	—
'19	Cranborne Audio	500R8	↔	*	—	!AD: AK5578 ('15)•DA: CS43198 ('17)
'19	WesAudio	_CALYPSO	↔	◎	—	~AD+DA: 24-bit•ICs unresolved
'20 (ADAT)	Lynx	Aurora(n) + LM-DIG + DB-ADAT	↔ 2×	◎•Aurora fw≥1.21 / LM-DIG≥2.0	—
'20	Avid	Pro Tools Carbon	↔	?	—
'20	Focusrite	Red 8 Line	↔	*	—	~parallel-path conversion; AD+DA ICs unresolved
'20	TASCAM	Series 8p Dyna	→	—	—
'20	Neve	1073OPX + ADAT/USB Card	→	—	—
'20	PreSonus	Quantum 2626	↔	?	—	~AD: ≈ 2× CS5364 ('05)•DA: ≈ CS4385 ('04)
'20	RME	12Mic	→	◎	—
'20	RME	M-1610 Pro	→	◎	—
'20	Focusrite	ISA 828 MkII + ISA ADN8	→	—	—	!AD: 8-ch 24/192•121dB DR•IC unresolved
'21	Focusrite	Clarett+ 8Pre	↔	*	—	!AD: CS5381 ('02)•DA: CS43198 ('17)
'21	Focusrite	Clarett+ OctoPre	↔	—	—	~AD: ≈ CS5381•DA: ≈ CS43198 (OctoPre ICs unverified)
'21	MOTU	UltraLite-mk5	↔	*	—	!AD: AK5578 ('15)•DA: 2× ES9026PRO ('19)
'21	RME	Fireface UCX II	↔	*	—	!AD: AK5558 ('16)•DA: AK4458 ('15)
'22	RME	12Mic-D	→	◎	—
'22	Ferrofish	A32pro	↔	◎	—	!AD+DA: ESS, 32-bit•~exact ADC/DAC part numbers not publicly disclosed
'22	Ferrofish	A32pro Dante	↔	◎	—	!AD+DA: ESS, 32-bit•~exact ADC/DAC part numbers not publicly disclosed
'22	Audient	EVO 16	↔	*	—	~AD+DA: ≈ AKM family; ICs unresolved
'22	Avid	Pro Tools | Carbon Pre	↔ 2 optical pairs; 8 analog ch	◎	×	!32-bit conversion • exact ICs unresolved
'23	Audient	EVO SP8	↔	◎	—	~AD+DA: ≈ AKM family; ICs unresolved
'23	RME	Fireface 802 FS	↔	*	—	!AD: AK5574 ('15)•DA: AK4490 ('14)
'23	RME	Fireface UFX III	↔	*	—	!AD: AK5574 ('15)•DA: AK4490 ('14)
'23	Solid State Logic	PURE DRIVE OCTO	→	◎	—	!AD: 24-bit•IC unresolved
'23	Arturia	AudioFuse 16Rig	↔ 2×; 16 analog in / ≥8 line out	*•routing presets retained	×
'24	RME	M-1620 Pro	↔ 4×	◎	—
'24	RME	M-1620 Pro D	↔ 4×	◎	—
'24	MOTU	828 (2024)	↔ 2×	◎	—	!AD: AK5578EN ('15) + AK5572EN ('15)•DA: 2× ES9026PRO ('19)
'24	Arturia	AudioFuse X8 IN	→	—	—
'24	Arturia	AudioFuse X8 OUT	←	—	—
'24	Black Lion Audio	Revolution EXP	↔	—	—
'24	Universal Audio	Apollo x8 2G	↔	*	—
'24	Universal Audio	Apollo x8p 2G	↔	*	—
'24	Focusrite	Scarlett 18i20 4G	↔ 2×	*	—	!AD+DA: RedNet-family converters•AD 120dB DR•DA 130dB DR•~ICs unresolved
'24	SPL	P8 + ADC8	→	◎	—	!AD: AK5538 ('16)•8-ch•24-bit
'24	PreSonus	Quantum HD 8	→ 2 optical outs; 8 analog inputs	◎	×	!32-bit conversion • exact ICs unresolved
'25	Ferrofish	PULSE8 AE	↔	◎	—	!AD: ES9840Q ('20)•DA: ES9017 ('22)
'25	Audient	iD48	↔	*	—	!AD+DA: 32-bit ESS converter family•~ADC/DAC ICs unresolved
'25	Ferrofish	PULSE16 AE	↔	◎	—	!AD: ES9840Q ('20)•DA: ES9017 ('22)•!monitor DA: ES9023 ('10)
'25 (Jan announcement / Apr availability)	Solid State Logic	ALPHA 8	↔	◎	—	!AD+DA: 32-bit architecture•ICs unresolved
'25	Solid State Logic	SSL 18	→ 2 optical outs; 8 analog inputs	*•Mirror Route	×	!32-bit conversion • exact ICs unresolved
'25	MOTU	16A (2025 Thunderbolt 4 / USB4)	↔ 2×	◎•current firmware	×	!DA: ESS Sabre32 family • exact AD/DA ICs unresolved
'26	Focusrite	ISA C8X	↔ 2×	*	—	!AD+DA: RedNet-family converters•24/192•≤125dB DR•~ICs unresolved

[smilesdavis]

Pro Audio Converter Market History (1994–Present)

1994 — Burr-Brown Releases PCM1702 Multibit DAC
Burr-Brown launches the PCM1702, a 20-bit BiCMOS dual R-2R ladder DAC featuring a sign-magnitude architecture designed to eliminate zero-crossing distortion. It became an industry flagship for high-end audio DAC design throughout the mid-to-late 1990s, defining the classic "multibit" sound standard right before the industry shifted en masse toward high-resolution delta-sigma topologies.

1994 — Crystal Semiconductor Introduces CS5389 18-Bit Delta-Sigma ADC
Crystal Semiconductor (Cirrus Logic) introduces the CS5389 stereo A/D converter, bringing high-dynamic-range stereo conversion to affordable pro-audio recording hardware and digital mixers. This accelerated the transition of project-studio hardware away from legacy hybrid ADC modules to highly integrated CMOS delta-sigma ICs.

1995 — Crystal Semiconductor Introduces CS4329 Multi-Bit Delta-Sigma DAC
Crystal releases the CS4329, one of the earliest commercial audio DACs to combine a multi-bit delta-sigma modulator with a switched-capacitor analog filter. This helped initiate the industry transition away from pure 1-bit delta-sigma converters—which suffered from severe high-frequency out-of-band noise and jitter sensitivity—toward multi-bit delta-sigma topologies that offered lower jitter susceptibility and superior dynamic range.

Jun '96 — dCS Debuts the Elgar DAC and Consumer Ring DAC Architecture
Data Conversion Systems (dCS) unveils the Elgar D/A converter at the Stereophile Show in New York, introducing its proprietary 5-bit multi-bit "Ring DAC" architecture (originally engineered for military/radar data acquisition) to the high-end audio market. It provided 24-bit / 96 kHz conversion capabilities well before off-the-shelf IC manufacturers offered high-res silicon, becoming a benchmark alternative to standard monolith IC converters in pro and mastering studios.

1998 — AKM Launches the AK4393 ("Super Velvet Sound" Archetype)
Asahi Kasei Microdevices (AKM) introduces the AK4393, an early 24-bit / 96 kHz stereo DAC utilizing an advanced multi-bit delta-sigma modulator. It established AKM as a dominant force in pro-audio conversion during the DVD-Audio / SACD development era, forming the direct foundation for the AK439x series and setting up AKM’s high-performance signature sound lineage.

1999 — Wadia Digital Acquires UltraAnalog
High-end audio manufacturer Wadia Digital acquires UltraAnalog Inc., the premier manufacturer of ultra-high-precision discrete/hybrid ladder DAC modules (such as the D20400). This signaled the sunset of the classic high-cost discrete ladder DAC module era as high-performance monolithic ICs from Burr-Brown, AKM, and Crystal rapidly improved in price-to-performance.

24 Aug '00 — Texas Instruments Acquires Burr-Brown
TI completes its acquisition of Burr-Brown for ~$7.6 billion (initially announced June 2000; valued at ~$6.5B at closing), absorbing one of the dominant high-performance ADC/DAC manufacturers. Burr-Brown’s PCM-series converters became part of TI’s analog portfolio, with TI rapidly expanding the line into 24-bit/192 kHz professional/consumer audio devices such as the PCM1738 and PCM1608.

1 Jul '06 — EU RoHS Takes Effect
EU Directive 2002/95/EC prohibits lead and several other hazardous substances in newly marketed electronic equipment. Semiconductor makers migrated ICs to lead-free packages/processes and requalified products; numerous older package variants and economically marginal legacy ICs disappeared rather than being converted. This serves as an important dividing line when identifying late-'90s/early-'00s converter revisions and EOLs.

29 Sep '06 — Philips Semiconductors Becomes NXP
Philips separates its semiconductor division, selling an 80.1% stake to a private-equity consortium as Philips Semiconductors officially becomes NXP (brand introduced Aug '06; sale finalized Sep 29). One of the historic audio-converter suppliers left Philips ownership; the Philips semiconductor/audio lineage was subsequently managed under NXP while the classic TDA-era converter business increasingly became legacy technology.

Jan '08 — ESS SABRE Enters the High-End DAC Market
ESS introduces the ES9008 SABRE Reference DAC, initially specified at 134 dB dynamic range / −118 dB THD. This created a major new competitor to AKM, Burr-Brown/TI, Cirrus, and Wolfson. SABRE quickly became a major high-end/audiophile converter family and, much later, one of the principal substitutes manufacturers turned to after the AKM fire.

11 Mar '11 — Tōhoku Earthquake / TI Japan Fab Damage
The Great East Japan Earthquake substantially damages TI's Miho fab and affects Aizu; Miho represented ~10% of TI output by revenue, with most non-DLP production being analog. TI shifted production to other fabs and customers had to requalify devices manufactured on alternative lines. By April, TI had found alternate fabs for ~80% of Miho devices, causing a real analog/data-converter supply disruption.

21 Aug '14 — Cirrus Logic Acquires Wolfson Microelectronics
Cirrus completes its ~£283 million acquisition of Wolfson, one of the principal suppliers of audio ADCs, DACs, and codecs. This marked another major consolidation of the audio-converter market: the formerly competing Crystal/Cirrus and Wolfson portfolios, engineering teams, and audio IP were brought under one manufacturer.

20 Oct '20 — AKM Semiconductor Factory Fire
Fire destroys AKM's Nobeoka mixed-signal semiconductor plant and effectively removes its audio ADC/DAC production capacity. AK449x/AK55xx and numerous other families became unavailable; manufacturers stockpiled remaining parts, discontinued products, or redesigned them around ESS, TI, and other converters (e.g., RME changing the ADI-2 DAC from AK4493 to ES9028Q2M).

2020–23 — Global Semiconductor Shortage
COVID-era factory disruption, huge electronics demand, wafer-capacity constraints, shipping problems, and additional fab outages coincide with the AKM disaster. Converter choice became governed increasingly by actual availability rather than preferred IC; lead times reached ~50 weeks+ in pro audio, products were delayed or repeatedly redesigned, and manufacturers diversified their semiconductor sources (e.g., Focusrite's wide-scale re-engineering effort).

31 Jan '22 — AKM Audio Converter Production Returns via New Manufacturing
AKM resumes samples of 13 VELVET SOUND ADC/DAC models, moving production to external manufacturing rather than rebuilding the destroyed Nobeoka line. AKM returned, but not simply by restarting the old fab: parts were transferred and redesigned for new semiconductor processes, producing revised converter generations such as the AK4490R and AK4493S.

Sep '22 — Post-Fire AKM Architecture Reset
AKM puts the new flagship AK4499EX + AK4191 into production, separating the digital/filter/modulator section from the analog DAC die. The AK4499 successor was no longer a drop-in continuation of the pre-fire AK4499; the fire/process migration effectively created a new converter architecture and forced new PCB designs rather than a simple restoration of old designs.

[IIO]

Alesis DEQ-830
Alesis DEQ-230D  (2 chn)
Alesis Quadraverb 2 (2 chn)
Alesis Q 20 (2 chn)

Eventide H-9000
Eventide H-8000 (4 chn)

Sony DPS-V55 (4 chn)

Yamaha 01V96

Behringer X32 (with optional card, which replaces the usb)

Ensoniq DP/Pro (with optional card) (4 chn)

Kurzweil KSP8 (with optional card)

[smilesdavis]

Alesis DEQ-830
Alesis DEQ-230D  (2 chn)
Alesis Quadraverb 2 (2 chn)
Alesis Q 20 (2 chn)

Eventide H-9000
Eventide H-8000 (4 chn)

Sony DPS-V55 (4 chn)

Yamaha 01V96

Behringer X32 (with optional card, which replaces the usb)

Ensoniq DP/Pro (with optional card) (4 chn)

Kurzweil KSP8 (with optional card)

8-channel Analog ↔ ADAT-capable processors / mixers

Struck-through = does not qualify: fewer than 8 analog I/O channels and/or no ADAT.

Alesis

• DEQ830 — 8 analog I/O ↔ 8-ch ADAT
• DEQ230D — 2 ch; S/PDIF only, no ADAT
• QuadraVerb 2 — 2 analog ch; ADAT optical present, but only 2 channels can be processed
• Q20 — 2 analog ch; ADAT optical present, but only 2 channels

Eventide

• H9000 — 8 analog I/O ↔ 8-ch ADAT
• H8000 / H8000FW — 4 analog I/O; ADAT present, but not 8 analog channels

Sony

• DPS-V55 — 4 analog ch; no ADAT

Yamaha

• 01V96 — built-in 8×8 ADAT + ≥8 analog I/O

Behringer

• X32 + X-ADAT — 32×32 ADAT via 4 optical I/O banks; X-ADAT replaces the USB expansion card

Ensoniq

• DP/Pro + DI-Pro — 4 ch; AES/EBU + S/PDIF option, no ADAT

Kurzweil

• KSP8 + Analog I/O option + ADAT I/O option — 8 analog I/O ↔ 8-ch ADAT
• ADAT option alone does not qualify: stock KSP8 has only 4 analog inputs + 4 analog outputs.

[IIO]

i have a similar opinion for personal use. which brings up the question if you can demux and recombine 2 4-channel optical signals?

[smilesdavis]

i have a similar opinion for personal use. which brings up the question if you can demux and recombine 2 4-channel optical signals?

yes. at 44.1/48k you can receive two ADAT streams and repack e.g. channels 1–4 from each into 1 new 8-channel ADAT stream, provided both sources are clock-synchronous. it requires an active ADAT matrix/router, not an optical splitter/combiner. old RME HDSP Digiface + TotalMix can do exactly that and can run in Disconnect Mode afterwards. at 88.2/96k it cannot reduce two 4-channel S/MUX streams to one optical port because one port only carries four audio channels at double speed.

[IIO]

i was just looking for one and only find MADI based Pro Gear starting from 4k.

the RME 4x4 ADAT Router would be great, but it requires you to connect to a PC everytime to start it because it does not store presets.

if you know about an affordable 4*2 or 4*4 router which can do a real standalone mode, let me know.

(using word clock for the sources is not enough btw, the optical signal always has to be reclocked.)

[smilesdavis]

RME's Mathias Carstens in 2015: "Development on the ADAT Router has stopped, the product is cancelled."

Friend-Chip DMX16 + 4× MQA => standalone and remembers presets, but its ADAT decomposition is into four stereo pairs per Lightpipe, rather than arbitrary individual mono channels.

=> MOTU LP32 (Mar '17–by Jan '25) IF you can find one

[IIO]

=> MOTU LP32

yep, just learned about it.

for my budget it is not old enough though and it has an external PSU, but glad to see that it actually exists.

X32 with adat card is option #2 but a bit big.