Audiophile-Grade Bench Service. No Hype.
If it has a circuit board and makes sound, we work on it. Amps, DACs, turntables, streamers, preamps, receivers, crossovers, tube gear, solid state, vintage, modern — brands from Marantz to McIntosh, Krell to Kenwood, and everything in between. Combined 15 years of bench experience across PS Audio, Ayre Acoustics, and TMR Audio. Not a parts swapper — a real technician.
Mods & Upgrades
Beyond repairs — make your gear sound better than it ever did. Pick a direction, and we'll quote it properly.
Full Recap / Cap Upgrade
Quality electrolytics and film caps tighten bass, open up detail, and restore a tired amp, receiver, or crossover to spec — often better than new.
Tube Rolling & Tube Upgrades
NOS and premium output/driver tubes. We match, bias, and burn in — you get the tone you've been chasing.
Crossover Rebuilds
Fresh film caps and air-core inductors in your speakers. Owners describe a crossover rebuild as getting a new pair of speakers.
Bias & Precision Setup
Factory-spec bias, DC-offset correction, and calibration. The cheapest upgrade you can buy — most gear has never had one.
Turntable Upgrades
Cartridge upgrades and setup, tonearms, platters, bearings, and motor/PSU work. Table upgrades compound — we'll plan the order.
Headphone Mods
Detachable-cable conversions, balanced re-cable, earpad and damping upgrades. Breathe new life into cans you love.
Power Supply Upgrades
Regulation, snubbing, and beefier rails on amps and DACs — the quietest, most dramatic upgrade in audio.
Vintage Modernization
LED dial lamps, Bluetooth/streaming inputs, safety upgrades. Keep the classic look, make it a daily driver again.
Not Sure What To Do First?
Tell us the gear and the direction you're curious about — the Customer Service Wizard will lay out upgrade paths, expected sonic benefits, and rough effort levels before you commit to anything.
Brands We Know Inside and Out
These are the patterns we see most often on the bench — but we work on anything with a circuit board. If it makes sound, we can diagnose it. Click a brand to see common failures.
Not Sure What's Wrong?
Describe what's happening and the Customer Service Wizard will tell you what to expect — pricing, common fixes, and whether it's a bench job.
Component-Level, Not Board-Swap
We diagnose down to the transistor. Combined 15 years across PS Audio, Ayre Acoustics, and TMR Audio. If it can be repaired, we repair it.
Call or Text the Bench
(720) 363-4356 · Mon–Fri 9–6, Sat–Sun 10–3
Longmont, CO — Mail-In Accepted
Appointment-only drop-off or ship your gear. We've received packages from across the US.
Real Knowledge, Repairs + Mods
Our diagnostic AI is trained on patterns from Audiogon, DIYAudio, Reddit, and real bench experience.
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