Last of the Kris amps for a while and the biggest too. Mach 3+3. 1 6JU6 tube driving 3 6LQ6 tubes. Another no frills basic amp. No preamp, no special circuitry, just a basic grounded grid amp. I do see that Kris made an amp called the 600, but the schematic looks exactly the same as this. The manual also shows both the 600 and this are rated for 600 watts input and 300 watts output. Manual also says this has a maximum off 3 watts drive. I hit it with 4 watts from the big bad Tram D201. Recapped, good tubes, no issues does 340 peak with the D201 behind it, 290 peak with the Titan I 1 watt radio behind it and does about 200 average. The only thing not standard on this amp is the final tube input trimmers on each tube. Never seen that before. Normally see 1 trimmer (if any) for all the tubes. Not a bad little 200 or so watt amp. I likkie.

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