CHAMSORI Audio presented its vacuum tube amplifier ‘300B PP’ during IT Channel USA conference 2007 in New Jersey, USA. This 100% handmade vacuum tube amplifier offers natural, rich and warm sound than conventional digital amplifiers. Vacuum tube based amplifier have a very less distortion and music enthusiasts (and geeks) still prefer vacuum over mosfet and IC based amplifiers. Few years back me and my friends made transistor based 100W amplifier because vacuum tubes were not available here. Handmade amplifiers means reliability and we can make it according to our specific requirements. Anyways technical details of 300B PP are as follows:

Rated Output: Stereo 75W + 75W
Power Input: 1.2V (unbalance), 2.5V (balance)
Frequency: 38/20000Hz + 0, -0.25db (20Hz – 20 KHz)
S N B: 100dB (A-weighted)
T H D: Less than 0.5% (250mW)
Vacuum tubes: 300B x 4.65N7 x 4.12Ax7 x 6.5U4G x2
Power: 220V/60Hz, 4A
Power Consumption: 250W
Size: 18.5” x 8.3” x 13.5”
Weight: 53.1 lbs

This entry was posted on Wednesday, October 31st, 2007 at 3:26 pm and is filed under Electronics. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.