TRIODE LAB

Canada based manufacture in hifi tube amplifiers

A Canada based manufacture in hifi tube amplifiers

2A3M-II

  • 8W Single Ended Class A Autobias

  • 9W Maximum. Yes, that is more powerful than a 300B

  • 2 x 2A3, 1 x 12AX7, 1 X 5U4/5T4/5V4 PER BLOCK

  • Voiced with Mundorf Silver in Oil Caps (Quad)

  • Finale Pink-Lingu RCA Input (Rose-Gold Finish) 2018+, Furutech Gold AC Inlets / CMC or CARDAS USA Binding Posts / Premium Ecaps and Resistors

  • $12,999 USD /Pair 2019 Pricing with Hammonds Canada Transformers SET.

  • 2A3M-II FFX Version available with full suit of HASHIMOTO : MSRP $16,999

  • This version uses the high output 2A3’s PSET Output Transformers (20W Core @ 1.2K Impedance, co-design and engineered between Triode Lab and HASHIMOTO) found on the 2A3MII RS FFX.

This is the parallel version, double the power, while maintaining the best voice of 2A3. A perfect amount of circuitry tuning, parts matching, and our lengthy aural testing make this perhaps the best sounding pair of 2A3 Parallel SET Mono Blocks on the market. The brilliance of the 2A3 highs and unique tone, power and control, bass and ease of setup are far easier...something you can use to drive a pair of little speakers, as big people have been looking for a subwoofer!

"The 2A3M-II mono blocks offer such depth of resolution and beautiful recreation of musical sources that they are in a class by themselves. I don’t know all the exact technical details with which Frank builds his equipment, but I do know their ability to generate a crystalline clear sound-stage that is holographic, while remaining lifelike, creating chills up and down my spine frequently. This phenomenon is extraordinary to experience when it occurs as a result of stereophonic reproduction. I hope that you have had a similar experience, so that you can place yourself in the seat in my room when it occurs and imagine what it is like to listen to these amps."

by Jon Eben Field, WallofSound.Ca


2A3M-II RS

The 2A3M-II RS bridge between the M2 and the RSR.

  • The RS, like its name suggested, it has a tie to the flagship RSR mono blocks.

  • Which shares the same front end RS design with the 12AX7 and with a 12BH7/ECC99. Its our best shot in 2A3 SET design.

  • The power supply remain the same as the 2A3M2 due to the compact size of 8” W x 17.5”L - we are using each inch of the chassis.

  • Hammonds Canada Complete Set of HIFI Transformers (Show above)

  • Rectify tube use: 5R4 tube perfectly. With 5U4, we were able to measured a max power of 11 Watts. But for best result, we recommend 5V4 / GZ32 / 5T4, or the 5R4. Matched brand please, or from the same batch/date. Any other type of rectifiers are not recommended, and warranty voided if used due to different voltages.

  • Shown above : finished in optional BMW M Valencia Orange-Red Metallic Paint

  • Starting $14,999 USD / Pair

  • FFX edition available for $18,999 USD / Pair (BELOW PICTURES), which features the Hashimoto x Triode Lab 20W Output Transformers (Design by Triode Lab / Engineered by Hashimoto) specific for the 2A3 Tube. As well powered by the Hashimoto 2A3 power transformer, and all the FFX circuit enhancements.


Is there an end? - ask for a stereo end game RSR version.

The 2A3 RSR mono-blocks.                            

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Parallel 2A3 per Channel - 8W minimum (It drives close to a 211, which really makes 9-10W in SE)

  • Hashimoto x Triode Lab 30W Flagship Output Transformers (Design by Triode Lab / Engineered by Hashimoto)

  • Full suit of Hashimoto transformers (Starting 2017)

  • Dual Hashimoto Choke transformers - One supply the operation and one supply the tubes), following its dedicated dual high quality Mundorf M-Lytic Ecaps. The standard setup for RS/RSR power supplies.

  • Hashimoto 2A3 power transformer (The best kind power transformer for the 2A3 application currently, and it makes a substantial improvements on the AC heated 2A3 applications, it's not just quieter, but it sounds better!)

  • Chassis size : 18" W x 12" D x 2" H PER BLOCK

  • Rectified/Voiced by Mullard GZ32/ Sophia Electric Aqua 274B (GZ34/5AR4 - 8W Before Distortion and 5U4/5V4/5T4 7W)

  • Preamp / Driver Tubes : 12AX7 Pair + 12AU7 or 12BH7 or ECC99

  • Goodies - Cardas RCA / Binding Post 0-4-8-16 (or Furutech Carbon Fibre Binding Post ), Mundorf Silver in Oil Caps, Furutech Rhodium IEC...etc. Whichever high end parts work to your ears!

  • MSRP - $40,000 USD Pair with full suit of Hashimoto 8 Pcs Transformers

  • The 2A3 RSR is only constructed on pure copper chassis.

  • Pricing INCLUDING 2" Foam Vault/Triple Layer Carton Box/ Shipping only strapped on pallet.

  • Shipping world-wide included by Air Canada Cargo.

$46,000 USD with EVO Power Supply Package :

  1. Input caps upgraded to Mundorf’s EVO SILVER GOLD OIL Coupling Caps.

  2. Furutech Carbon Fiber Binding Posts 0-4-8-16

  3. HASHIMOTO (Sansui) Large Chokes

  4. HASHIMOTO (Sansui) Large Power Transformers

  5. New RSR EVO Power Supply Enhancement (Not available on previous RS/RSRs) , which have the additional Double-Pi DC Link Circuits on top of the each Dual Choke Transformers arrangement on other RS/RSR models, for further quieter operations , smoother start up and more efficient / stable operations. Two Rubycon USA 500V+ Ecaps and one Wima Germany DC Link 10 uf / 600V Cap is used on top of each (dual) choke transformers.

2018 2A3 RSR x FURUTECH Carbon Fibre Binding Posts

2018 2A3 RSR x FURUTECH Carbon Fibre Binding Posts


Triode Lab Ltd, TM. All Right Reserved. 2023-2024. Toronto, Canada, Companies of Finale Electric.