A hi-fi and vintage amplifier workshop in Singapore. Terence has been at the bench 16 years.

Message Terence on WhatsApp

Valve amps.
Turntables.
Speakers.

Two recording studios are among his clients.

Intake sheet ↓

The three operations

Valve amp restoration

operation

Rebuilding a valve amplifier: capacitors and resistors replaced, bias set, valves matched and tested.

symptoms

Hum, hiss, low output on one channel, drifting bias, an amp that has sat unused for years.

parts

Chassis, power supply, output transformer, valve sockets.

Turntable servicing

operation

A turntable service covers speed, bearing, belt or idler, tonearm alignment and tracking force.

symptoms

Wow and flutter, wrong pitch, rumble through the bearing, a stylus that skates or mistracks.

parts

Platter and bearing, motor and drive, tonearm, cartridge alignment.

Speaker re-coning

operation

Re-coning replaces the cone, surround and voice coil in a driver, then re-centres the coil in the magnet gap.

symptoms

Perished foam surrounds, a rubbing or open voice coil, a torn cone, a driver gone silent.

parts

Driver basket, cone and surround, voice coil, magnet gap.

How to reach the bench

9678 3456

Terence is reachable by phone. The intake sheet below is the written route.

Who is at the bench

Terence runs the bench. The workshop is in Singapore.

Until now he has been reachable only by phone. The intake sheet below is the written channel.

Go to the intake sheet
16years of experience
2recording studios are among his clients

What to include when you write

Four things describe a repair. All four are things only the owner knows.

  1. 01

    Make and model

    The manufacturer and the model number, off the rear panel or the badge. Circuits and drive units differ unit to unit.

  2. 02

    What it is doing, in your words

    Hum, one dead channel, crackle on the volume control, a rumble under the music, a burning smell. A plain description is more useful than a diagnosis.

  3. 03

    Whether it powers on

    Does it light up, does a fuse blow, does it come up and then cut out.

  4. 04

    Whether it has been opened before

    Previous servicing, replaced capacitors, a re-coning attempt, a modification.

Write those four things into the sheet below. Or send them to Terence on WhatsApp at 9678 3456. Go to the intake sheet ↓

Bench intake sheet

Terence is reachable by phone. This is the written route — fill the sheet and it goes to him.

IntakeKestrel Audio Repair

Pick a symptom above and a follow-up appears here.

Previous repairs, replaced parts, how long you have had it.

This sheet goes to Terence. No reply time listed — ask him.

Sheet sent.

Or message the bench 9678 3456

If you would rather type it out than fill a sheet, message the same number. Terence runs the bench.