Sony PCM-2700
A four-head professional DAT deck that let engineers hear the tape while it was still being recorded - and cost less than the competition.
Overview
The pitch that sold the PCM-2700 was simple: four heads. Two record, two play back. That gives you off-tape monitoring in real time, so you hear what is actually landing on the tape as it lands, not a confidence feed off the record head. For a studio or broadcast rack, that one feature separates a professional DAT machine from a consumer one, and Sony built the PCM-2700 around it. Period literature describes it as the first affordable professional four-head DAT recorder. At a manufacturer's list of $2985.00 it undercut a lot of what else was in the rack.
The transport is a four-motor direct-drive design. Sony's own materials credit it with tape stability, accuracy, and reliability. The converter is Sony's HDLC (High Density Linear Converter) system paired with a 1-bit pulse D/A converter, and the company's advertising billed the result as exceptionally clean playback with very low noise. Take the marketing for what it is. The converter architecture is the real story, though. 1-bit pulse conversion was Sony's house approach in this era, and the deck's spec sheet hangs its sound quality on the HDLC system.
The numbers Sony published are respectable for the period. Signal-to-noise ratio is listed as more than 90 dB, frequency response 20 Hz–22 kHz, and total harmonic distortion under 0.045%. Those are professional-grade figures, not consumer ones, and they're the sort of specs that made the deck credible in a broadcast or studio rack rather than a home shelf. The analog I/O is balanced on XLR connectors, adjustable from +4 dBu nominal up to +24 dBu maximum — enough headroom to sit comfortably in a professional signal chain without padding.
Sampling is flexible. The PCM-2700 supports 48 kHz, 44.1 kHz, and 32 kHz. It also has a 12-bit nonlinear Long Play mode at 32 kHz that doubles standard recording times for logging applications. For archival logging, field capture, or any job where runtime beats fidelity, that mode turns the deck into something closer to a continuous recorder. Digital I/O accepts AES/EBU format signals and allows digital-to-digital transfer at 44.1 kHz over S/PDIF.
The feature list reads like a deck that was actually used by professionals. Absolute time recording puts a continuous time code on tape so you can locate any point quickly, and a high-speed auto-location function jumps to A-time positions on command. There's an adjustable digital fade in/fade out, with duration adjustable per Sony's materials, and alternate subcode recording. A rack mount adapter ships in the box, along with both wired and wireless remote controls. The 2700A revision that followed added remote fader start and dual digital I/O with both AES/EBU and S/PDIF, but the original 2700 already had the core professional toolkit.
Mix (June 1991, p.69) flagged the PCM-2700 in its new-product previews as scheduled for summer delivery from Sony Pro Audio, which places the deck's arrival in that window. The same magazine's later coverage of the 2700A noted the machine was suited to broadcast use and studio record/play work — the natural home for a four-head deck with balanced XLR I/O and absolute time. For anyone running a DAT-based studio in the early '90s, the 2700 was a serious tool that didn't require a five-figure budget.
Know this before buying one today: DAT is a format with a finite future. The transports are mechanical, the heads wear, and the tape stock itself degrades. A PCM-2700 that's been sitting unused for years will likely need a belt-and-roller inspection and a head cleaning before it trusts a tape again. The four-motor direct-drive transport is sturdier than the consumer decks of the era, but it still has moving parts and a finite service life. Collectors tend to value these for the professional feature set - the balanced I/O, the off-tape monitoring, the absolute time - more than for any particular sonic signature.
The original list price of $2985.00 puts it in context: this was never a budget deck, even if Sony positioned it as the affordable professional option. The 2700A revision listed at $3230.00, and the optional RM-D7100 wired remote ran $600.00 on its own. Those numbers tell you what kind of buyer Sony had in mind — a facility, not a hobbyist. Today the calculus is different. Parts are scarce, service documentation exists but technicians who know DAT transports are thinning out, and the value of a working unit depends heavily on whether it's been maintained. A clean, tested PCM-2700 with the rack ears and remotes is a genuine piece of '90s professional audio history; a barn-find unit is a project.
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