Eight stages, and you see each one
Every build follows the same path in our workshop. You get photos and notes at each stage, and nothing is finalised until you approve it.
Listen & schematic
We learn your speakers, room and music, then draw the circuit.
Component selection
Transformers, tubes, capacitors and switches, chosen with you.
2D layout
Top-plate layout for short signal paths and low hum.
3D design
Full chassis render. You approve the look before we cut metal.
Parts & machining
Chassis machining, powder coat, wood frame and parts arrive.
Assembly
Hand-wired point to point by the two of us.
Final QA
Measurements, burn-in and a listening test, with a video for you.
Packing & shipping
Careful packing, worldwide shipping, setup notes and support.
What a commission usually costs
Every build is quoted individually. Where a design shows a range, the low figure is with our Thai-wound transformers and the high figure with Japanese ones; the final figure depends on transformers, tubes and finish. Open a design for the full story and specification.
| Design | Price (USD) | Lead time |
|---|---|---|
| Power amplifiersThai-wound transformers From $600Japanese transformers From $1,000 | ||
| Essential 300B Single-Ended | $900 – $1,500 | 6–10 weeks |
| Essential EL84 Single-Ended | $600 – $1,000 | 2–3 months |
| 300B Single-Ended Stereo | $2,500 – $4,000 | 3–4 months |
| 300B Two-Stage Monoblocks (per pair) | $3,000 – $5,000 | 4–6 months |
| 45 & 50 Single-Ended | From $3,500 | 3–4 months |
| VT-51, VT-25 & 300B-XLS | From $3,500 | 4–6 months |
| Push-Pull & Fully Balanced | From $3,500 | 3–5 months |
| Two-Way Bi-Amp | From $3,500 | 4–6 months |
| Preamps & phonoThai-wound transformers From $800Japanese transformers From $1,000 | ||
| Essential LCR Phono Stage | From $800 | 6–10 weeks |
| Essential Line Preamplifier | From $800 | 4–8 weeks |
| Essential Two-Chassis Line Preamp | From $800 | 6–10 weeks |
| LCR Phono + Line Preamplifier | $1,000 – $1,500 | 3–5 months |
| LCR Phono Stage | From $1,000 | 3–4 months |
| DHT Line Preamplifier | From $1,000 | 3–4 months |
| Passive TVC / AVC Preamp | From $800 | 4–8 weeks |
| Transformers & accessories | ||
| MC Step-Up Transformers | From $300 | 2–6 weeks |
| Speaker Selectors & Switches | From $250 | 3–6 weeks |
| Transformer Cases & Interfaces | From $200 | 4–8 weeks |
| Speakers, systems & restoration | ||
| Custom Crossover Networks (per pair) | From $350 | 3–8 weeks |
| Field-Coil Power Supplies | From $1,000 | 6–10 weeks |
| Restoration & Modification | From $200 | 4–12 weeks |
| Café & Lifestyle Tube Amps | From $900 | 6–10 weeks |
| Complete Listening Systems | From $7,000 | 2–6 months |
What moves the price
- Transformers. Our own custom transformers, wound in Thailand, keep the price low. Japanese transformers (ISO/Tango, Tamura, Muse Coils) cost more, which is the high end of each price range.
- Output tubes. A pair of premium 300B or rare NOS tubes can cost as much as the chassis.
- Separate power supply. A second chassis lowers noise and adds cost.
- Wood and finish. Kamagong, ebony and mabolo cost more than walnut or teak.
- Options. Meters, remote volume, extra inputs, MC step-up.
Good to know
- Prices exclude shipping, import duties and taxes in your country.
- We ship worldwide and send setup notes with every build.
- THB figures are converted at 33 THB per USD and rounded.
- Looking for transformers only? See the ISO price list.