Exposure 3510 Preamplifier (2022)
The Exposure 3510 Preamplifier is the British company's entry-level line stage. It came out in 2022 as part of a refreshed 3510 series that replaced the outgoing 3010 line. It's a hand-built-in-England design with six RCA line inputs (or five plus an optional board), two main outputs and a tape output. All the stages are discrete transistor, trickled down from the reference 5010 series. The new gain stage uses high-quality relays for switching, and the oversized toroidal power supply is custom-made for the unit.
The 3510 is modular. Audionation describes it as a "line preamplifier with optional phono/DAC boards" - you can have an MM phono, MC phono, or a hi-res DAC board fitted internally. Add the 5010-derived circuitry and that's a lot of engineering for an entry-level price point.
Measured performance is respectable. Frequency response is 20Hz-20kHz ±0.25dB, THD is under 0.005% at 1kHz referenced to rated output, and maximum output is 7.7V RMS. It draws under 25W and weighs 7kg, with dimensions of 90mm x 440mm x 300mm (HxWxD). Output level is 1.9V for rated input at +18dB gain full volume.
The reception has been warm. Strictly Stereo notes "the sound is anything but entry level," and Doug Brady HiFi says it "helps to deliver your music with a precision and power that surpasses expectations for its competitive price." The brand's overall sound signature — neutral, rhythmically precise, sitting between Naim's warmth and Audiolab's clinical accuracy — carries through here. Exposure has been making this kind of amplifier since 1974, and the 3510 continues that philosophy with modern refinements.
One note on the record: the "3510" name also applies to an integrated amplifier in Exposure's lineup. Some specs floating around online (like power output) belong to that model, not this preamplifier. The preamplifier is a distinct standalone unit. The sources available don't document a production end date, an original UK price or common maintenance issues.
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