Triode Labs7591usedTriode Labs 7591 PrototypeI'm the second owner of just over a year. The original owner said the amp was less than 2 years old when I purchased it so my best guess is around 3 years old. This is better than the production ...1200.00

Triode Labs 7591 Prototype

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Condition
8/10
Payment methods
Ships fromJacksonville, FL, 32234
Ships toUnited States
Package dimensions24.0" × 24.0" × 18.0" (35.0 lbs.)
Shipping carriersUPS or FedEx
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I'm the second owner of just over a year. The original owner said the amp was less than 2 years old when I purchased it so my best guess is around 3 years old. This is better than the production model in my opinion because of the point to point wiring vs. a circuit board, upgraded speaker terminals and RCA jacks. Works as new. Comes with a set of McIntosh 7591 tubes with less than 100 hours and NOS 12ax7's.
Class A 20W + 20W (22.5 Watt to be exact)
•S.E.A Driver Design - Award winning driver design with a pair of 12AX7/ECC83
•Auto bias and the ONLY current production 7591 tube power amp
•Hammond Canada Power Transformer - Over-sized / capable for higher output tubes such as EL34 application
•Hammond Canada 190 Series Input Choke - Over-sized, and for a noise free background, as well for a higher definition, clearer and more solid and crisp treble/bass playback
•Hammond Output Transformers - which are built better than spec and our top picks regardless price (4/8 Ohms Connected / Selectable thru a switch, free by-pass this switch for purest link)
•Mundorf Germany Supreme Coupling Caps
•Furutech Gold IEC Inlet Socket
•CMC usa RCAs Input Jacks (Available upgrades to Cardas)
•High quality E Caps, resistors, and speaker binding post
•High quality separated power supply design with solid state rectification and a extra fuse for further protection
•Heavy duty and classic look design, it is also made to last!
•Ask for upgrading the output transformers to Hashimoto (Just like the one on Sansui 1000a)
•Tube cage included

Design Philosophy:
•The 7591 is a true American tube and a relatively new one! We prefer it over other older 8-pins power tubes due to its efficiency, sweetness and power, thanks to its relatively newer design in comparison. This is a very good tube we like and it was commonly seen on older Sansui, Scott, Fisher, McIntosh, Eico, Heath, Sherwood...etc amps/receiver. And don't underestimate the suggested low power rating And this might be the finest Class A 20 Watts around town money can buy! It will mate happily with lower efficient speakers / darker sounding speakers! The vivid colours, wide band dynamics, ultra details, quality weighted bass, a dark and well spaced sound-stage...etc all which often would seen on pure Class A amplifiers priced in folds. All you need is a pair of good 12AX7 that matches your system, and this pair of front end tubes is crucial and will dictate to the entire presentations

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