Tube Amp Kits

Secret Chord Analogue stocks a carefully chosen range of tube amplifier kits — from Elekit of Japan and Australia's own SpotFire (formerly Red Roo) — covering single-ended triode power amplifiers, push-pull monoblock designs, and tube phono preamp kits.

Building your own tube amplifier is more achievable than you might expect. You don't need prior electronics experience, and if you've never held a soldering iron we'll point you toward online instruction before you start. Each kit arrives with everything required, including crystal-clear English instructions, A-grade components, and an Australian standard 240V power cord.

Kit range overview

Power amplifiers: Elekit TU-8400 (EL34/KT88/KT170 single-ended), TU-8900 (300B/2A3 single-ended with optional Lundahl OPT upgrade), TU-8850 (KT88/EL34/KT170 single-ended, three power modes), TU-8888 (KT88 monoblock push-pull), and the SpotFire SE5 (EL34 single-ended triode with headphone output and Bluetooth).

Preamp: Elekit TU-8450 — a precision tube phono preamplifier with CR-type RIAA equalisation, MM/MC cartridge support, and 12AU7 line stage. An ideal system partner for the TU-8400.

Three ways to own one

DIY kit — build it yourself. Amp Camp — build it in a supervised workshop with SCA guidance. Build service — we build it for you. The sound is the same. The satisfaction varies.

Post-DIY finishing service also available if you get into difficulty partway through a build.

For a superior build result, consider adding eutectic solder to your order.

Elekit TU-8550 preamp with phono stage

Elekit TU-8550 preamp with phono stage

Overview This is a preamplifier kit with a built-in phono equalizer amplifier (MM cartridges), co...
From $1,643.00
From $1,643.00
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SpotFire PR5 phono preamp

SpotFire PR5 phono preamp

Australian designed RIAA phono preamplifier equaliser, this is a truly magnificent phono stage.  ...
$1,741.00
$1,741.00
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Amp Camp participants building tube amplifiers together at Secret Chord Analogue workshop

Amp Camp Build Experience — Tube Amplifier Workshop, Blue Mountains

Build your own high-end tube amp under the guidance of our expert technicians. Secret Chord Analo...
From $475.00
From $475.00
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SCA Amp Kit Build Service

SCA Amp Kit Build Service

Some of the best amplifiers in the world come as kits. The Elekit TU-8900, the TU-8888 monoblock ...
From $398.00
From $398.00
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DIY amp kit post-build recovery service

So, you've finished your Elekit or Red Roo build, supplied by Secret Chord Analogue, turned the a...
$250.00
$250.00
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TU-8400 Tube Set

TU-8400 Tube Set

A quality tube set complement for the TU-8400 (kit supplied without tubes). Voltage amplifying t...
$378.00
$378.00
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Testimonials

100% satisfied with the sound

I received both kits on time, and built the amplifier straight away.
The instructions were easy to follow, and not too verbose (10 out of 10). I am a Technical Author, and I could not fault them.
The quality of the kit components and PCBs was excellent. Beautiful design, and forethought. It is the best kit that I have seen. 100% satisfied with the sound - so full.

 Ross Field Alice Springs

I lose three hours getting lost in the sound

Hooked theTU-8500 up to my NAD 326bee, by passing its preamp, and now whenever I put music on I lose three hours getting lost in the sound.
It’s clear, punchy and has a great soundstage. Very enjoyable to listen to.
With the phono you can really hear how every record is mixed & mastered differently.

 Arne Heeres Paddington

The soothing output of the tubes

The TU-8200 is running beautifully; use it all the time into my Krix KDX Main speakers and it sounds wonderful. I am a reel to reel and Nakamichi cassette deck man. I run a Tascam OB44 and an Otari MX5050 MkIII, along with Nakamichi ZX-9, two Nakamichi 680ZX & #8217s , a Nakamichi 670ZX with High-Com plus two Pioneer CT-91A’s. These analogue sources sound fantastic through the TU-8200; 8 watts in ultra linear mode is more than enough for my listening room. As an ex broadcast engineer I just like the whole tape / recording / playback experience using CD and digital files as the sources. The analogue tape sound (when well recorded) and the soothing output of the tubes makes digital sources sound much better to me.

 David King Toowoomba

I am so glad I bought the kit

I have the TU-8200R operational. Powered it up this morning after assembling it over the last several days.
My first impressions - in the 20 years of being an audiophile, I have not listened to music of such warmth, separation, soundstage, the list goes on and on.

 Indrajit Chakrabarty Sydney