OTOMON Laboratory　(音門ラボ) / 71A drive 300B stereo tube amplifier class A1, 8.5W output Zero NFB

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71A drive 300B stereo tube amplifier class A1, 8.5W output Zero NFB

You can order input voltage 117V, 220V, 230V, 240V.

I dont open information about schematic, parts, transformer using in my amplifier. My brand name is the guarantee to what I do with my production !!!

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71A drive 300B stereo tube amplifier class A1, 8.5W output Zero NFB

This product is special order made item, if you want the same item, please contact me for order

Manufacturer:: OTOMON Lab

Audio amplifier » Tube amplifiers Audio amplifier » Special Order Made

It is stereo SE amplifie using PX4 and 300B tube as power tube. Output is 8.5W. This amp can be used with PX4 and 300B UX4 socket. 3mm thick copper top plate and walnut wooden case.

Originally it was developed for 300B, using 71A as driver tube. Prestage tube is 396A

Rectifier tube is 5AR4, 5U4G, GZ34 and 6X4 x 2

Very wide range, sound is musical and rich. NO NFB is used. Clean without hum, noise, good for almost speaker, high recommend for high sensitive speaker.

Specification: Zero NFB

Output : 7W / channel .
Noise :0.1mV
Response frequency: 10Hz ~ 50K Hz(-1.5db)
Distortion: under 0.3% 1W 1K Hz

No noise , no hum. Can be match with almost speaker.

Tubes is not included.

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