Telefunken MX-80A
A rebadged Mitsubishi that let engineers splice digital tape with a razor blade, and made a case for the console-format PCM deck at roughly half the going rate.
Overview
The MX-80A is the console-format two-channel PCM recorder that AEG-Telefunken brought to market as its European edition of the Mitsubishi X-80A. Studio Sound (November 1981, p.39) reported the arrangement plainly: the MX-80 transportable and MX-80A console machine were the counterparts of the Mitsubishi X-80 and X-80A, added to the Telefunken range as the fruit of cooperation between the two firms. So it is a Mitsubishi under the badge, and that shared lineage is why the machine behaves the way it does.
What made the MX-80A interesting in 1982 was editing. Digital tape decks of the period were fussy about how you cut them. Telefunken's pitch leaned hard on a single claim: this was the first PCM machine on which you could use ordinary cut-and-splice editing procedures. An automatic cross-fade joins the signal either side of the splice, so a physical razor cut gives a smooth, silent join instead of a click. Studio Sound (September 1982, p.21) ran the claim in the company's own advertising, so this is Telefunken's marketing talking, not an independent bench test. The mechanism is real enough, though. Contemporary descriptions note the error-correction circuits perform a rapid cross-fade where a 90-degree cut is made, which is how the splice survives the digital domain at all.
The format itself is decidedly non-DASH. The machine runs 1/4-inch tape at 15 ips, good for up to an hour on 10 1/2-inch reels, and lays down ten tracks - eight digital, one timecode and one analogue cue. The sampling frequency is 50.4 kHz, which puts it outside the DASH camp entirely. The MX-80A will not swap tapes with a Sony or Studer DASH machine. It is 16-bit linear PCM, fixed-head, reel-to-reel, and it speaks only to its own kind. For a studio already committed to the Mitsubishi ecosystem that was fine. For anyone hoping to interoperate, it was a wall.
Telefunken and its UK distributor leaned on usability as the second selling point. The controls are standard analogue-style, the transport is built to shrug off dust and dirt, and the whole thing is described as rugged, reliable and simple to service. That language was aimed squarely at engineers who had spent years on analogue mastering decks and did not want to relearn their craft. The head assembly is finished to a tolerance of 10 microns, which the company said delivers complete compatibility between machines. That matters when you are trying to play a tape cut on someone else's deck. The price line was blunt: the system came in at roughly half what competitors were asking. Whether that held up against a real quote is another matter.
The MX-80A is the console version, distinguished from the transportable MX-80 by its studio furniture and an overhead meter bridge. The two share the same engine. Alongside them Telefunken offered the DDL-1 digital delay line for disc-cutting, and announced the MX-800 multitrack (a rebadged Mitsubishi 32-channel) and the MXE-1 electronic editing system.
For collectors, the MX-80A is a European-badged Japanese digital mastering deck from the brief window when PCM on reel-to-reel was the professional future and nobody had settled on a standard. It is not a machine you buy to make records with in 2026. The format is orphaned, the tape is scarce, and the interoperability is nil. Parts and service documentation trace back to Mitsubishi, which is the practical lifeline. The Telefunken badge adds provenance, not support.
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