Teac Model 15 (1978)
A 24-into-8 Tascam console that promised a real studio front end without a studio budget — and mostly delivered.
Overview
The Model 15 is the console that turned a lot of garage eight-track operations into something that felt like a proper room. Teac built it as part of the Tascam line, and Modern Recording (February 1978, p.37) reported it as a 24-in/8-out mixer said to have been two years in research and development — new electronics, more headroom, improved sound quality. That framing matters: this wasn't a repackaged hi-fi mixer, it was Teac's answer to owners of the 80-8 and 90-16 tape machines who needed more outputs than the smaller Tascam boards could give them.
The configuration story is the one collectors repeat most. The Model 15 was sold with input modules that could be populated from 8 up to 24 channels, with 8 to 24 inputs feeding 8 output busses — and the frame was expandable, so a buyer could start small and grow. Period dealer advertising in Mix (May 1979, p.37) laid out the ladder plainly: 8x8, 12x8, and 16-to-24x8 configurations. That modular approach is why survivors turn up in such wildly different states today — a 16-input example and a 24-input example are the same console wearing different module counts.
The feature set, as Teac showed it at the time, was genuinely studio-grade for the money: 16 input modules in the demo configuration, eight output busses, a 4-band equalizer on every input, solo and mute per channel, 100mm slide faders, and echo receive control on every program buss. Studio Sound (November 1978) listed exactly those points when the console was exhibited. Anyone who has mixed on a small-format board knows what the 4-band EQ per channel and per-buss echo receive actually buy you — real tone shaping on the way in, and the ability to feed effects from any buss rather than one fixed send.
What the Model 15 was built to do is worth stating plainly, because it explains the whole appeal. Recording Engineer (June 1980, p.43) described it as a board that will drive any 16-track recorder and give a vast array of mixing, monitoring, and cueing capabilities — the cue mixing position alone could be fed by 48 sources. For a home or project studio running a 16-track, that's the difference between a mixer and a monitoring system.
By 1981 there was a revised version. Modern Recording (September 1981, p.37) announced the Model 15SL, pitched at the eight-track owner who expects to move to sixteen — the same "when your work begins at 8 and goes to 16" logic. The SL added quieter discrete FET mic preamps rather than chips, per the same announcement, and the ability to solo individual monitor channels, listen to a performer's headphone cue, and hear the echo buss.
Worth being honest about the ergonomics. A 24-input frame with 100mm faders and a full patchbay is not a desktop toy — this is a console that wants a proper stand or a built-in desk, and the 24-input version especially takes up real room. The module-based construction is a blessing for service and a curse for buyers, because consoles get parted out and reassembled, and a "Model 15" for sale may be any input count with any mix of module revisions. Collectors note that the fader and switch condition matters far more than cosmetics on these — the slide faders and the mute/solo switching take the wear, and a board that's been in a working room for forty years will show it.
On value, the period record is the most useful guide. A used-equipment listing in Studio Sound (August 1983) priced a Teac Model 15 in 16/8/16 configuration at £2,250, and a 1989 Mix classified offered a 24-input Model 15 with bays and cords, described as mint, as part of a complete 16-track studio package at $9,950 firm. Those numbers tell the story of a console that held reasonable money in the used market well after it was discontinued — it was a working tool, not a collectible, and priced accordingly.
The Model 15 also appeared in package deals. Harman UK, then handling Teac, offered a 16-track package built around the 85-16 multitrack, a 24/8 Model 15 mixer with 16-track monitoring, and a 35-2 mastering machine for £10,000 total, according to a period show report. That's the context the console lived in: it was the glue in a complete small-studio system, sold alongside the tape machines it was designed to feed.
Two things to keep straight if one turns up. First, the Model 15 is a mixing console, not a synthesizer — the archive's category tag is a filing convenience, and anyone searching for a synth under this name is going to be disappointed. Second, the input count is not fixed; confirm how many modules are actually installed before valuing one, because the 8x8, 12x8, and 16-to-24x8 versions are very different propositions on a desk and on a price sheet.
What it comes down to is a console that earned its reputation the unglamorous way: it did the job, it grew with the room, and it was priced so a serious home recordist could actually buy one. The 4-band EQ on every input, the eight busses, the per-buss echo receive, and the expandable frame are the reasons people still haul them out of storage. The reasons some of them stay in storage are the size, the module lottery, and the fact that a forty-year-old console always needs something. Buy one with eyes open about which version you're getting, and it's still a lot of mixing desk for the money.
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