Uher 4000L
A four-speed, full-transistor field recorder that put a broadcast-quality machine in a shoulder bag - and charged accordingly.
Overview
The 4000L is the version of Uher's 4000 with all four speeds: 15/16, 1 7/8, 3 3/4 and 7 1/2 ips. It measures 11 by 8 by 3 inches and carried a list price of $320, from a contemporary dealer listing. For that you got a pushbutton-operated monophonic portable, designed for AC operation but able to run from batteries via an adaptor. It came with a remote-control microphone. The accessory list covers an automatic voice activator, remote control, accumulator battery pack, AC power supply and charger, so Uher clearly expected owners to build a system around the deck.
The headline number is the frequency response: 40 to 22,000 c.p.s., plus or minus 3 dB, at top speed. That is an ambitious claim for a portable of this class, and Uher's own advertising leaned on it hard. High Fidelity (February 1966, p.104) ran copy boasting that the "L" variant kept the 22,000 cps response while adding a built-in digital counter, high-frequency motors, a brushed aluminum panel, and a weight reduction to under seven pounds.
Wow and flutter is quoted at about 0.15%, and signal-to-noise ratio at 50 dB. Neither figure is spectacular by studio standards. This is a field machine, and the noise floor reflects the transistors and topology of its moment. The numbers do say the transport is stable: 0.15% flutter at 7 1/2 ips is respectable for a battery-capable portable. It is the transport, not the electronics, that usually decides whether an old Uher is still usable today.
Five-inch reel capacity keeps the footprint small. This is not a machine for archiving a session. It is for getting a clean recording somewhere the mains supply isn't. The remote-control microphone that shipped with it is a period convenience that modern users tend to ignore in favor of a decent condenser. But Uher included one and offered a voice activator as an accessory, which says the intended use was spoken word and location reportage as much as music.
Period coverage of the 4000L is mostly advertising rather than measured review. High Fidelity (October 1967, p.139) and HiFI-Stereo (October 1967, p.159) both carried Uher's "Professional Portable Stereo" campaign, with the "Third Dimension of Sound" copy and a basic unit listed at $450.00. That is marketing, not a lab report, and the stereo model in that campaign is not the same machine as the mono 4000L. The ad copy shows how Uher positioned the line, not how the 4000L measured. The 22,000 cps claim comes from Uher's own advertising too, so read it as a manufacturer's figure, not an independently confirmed one.
On the used market the 4000L turns up less often than its reputation suggests, and the pricing is inconsistent. Expect to pay for a rebuild. Belts, the speed-change mechanism, and the usual capacitor work on a machine of this age are not optional, and a "working" example that has not been serviced is a project, not a purchase. The brushed aluminum panel and the sub-seven-pound weight make it pleasant to handle, but the internals are dense and the tolerances are tight. This is not a deck to learn repair on.
What the 4000L ultimately represents is the high-water mark of the portable reel machine as a serious tool: four speeds, a stable transport, a response figure that still looks good on paper, and a price that put it firmly in professional hands. It is not quiet, it is not small by modern standards, and it will not flatter a careless recording. But for someone who wants a field recorder with real speed flexibility and a transport worth maintaining, it remains one of the more compelling machines of its generation — provided you buy the serviced one.
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