Apogee AD-8000 (c. 1995–2000)
Apogee's AD-8000 was an eight-channel, 24-bit A/D converter and digital processing system. It was described at the time as a "24-bit, 8-channel Digital Conversion System." It first shows up in the trade press in Mix's 1995 New Products Guide as an 8-channel ADC, and it was still being installed in high-end studios five years later. Exact production years aren't otherwise documented.
It was more than a plain converter. Standard I/O included four stereo AES/EBU outputs plus one stereo AES and one stereo S/PDIF input. A built-in headphone DAC and amplifier could monitor any two of the eight channels, digital or analog source. Internally, the unit used Apogee's patented Low-Jitter Clock to minimize input jitter. Expansion came via the four-slot Apogee Multimedia Bus (AMBus). It accepted a stereo 24-bit DAC card, an eight-channel 24-bit DAC card, a remote microphone preamp controlled from the AD-8000 itself, a video sync plug-in card, and up to four digital audio I/O cards.
Period reviews were enthusiastic. Sound on Sound (Aug 1998, p.126) cited very low noise, on the order of −110 dB THD + noise, plus a 114 dB dynamic range and a flat frequency response. EQ (Nov 1998, p.151) highlighted its ability to convert between installed digital interfaces - ADAT, AES, TDIF, and Pro Tools - fully bidirectionally. A year later EQ (Oct 1999, p.79) was still calling it the latest in converter technology. By July 1999, Mix (p.33) said the AD-8000 had rapidly become an industry standard. It showed up in serious rooms, too: a June 2000 Mix piece (p.99) found producer Lan Meyerson at Media Ventures in Santa Monica, where everything he did in the studio ran through AD-8000s. Owner reports from Gearspace describe one studio using it to add eight extra inputs via lightpipe to a Digidesign Digi 001 and to clock the interface.
Missing from the record: original price, dimensions, weight, and detailed sample-rate specs. A user manual survives and is available as a free PDF download, so basic operation, maintenance, and warranty-service guidance is at least preserved.
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