Bob Carver Announces 20-Watt Stereo Vacuum Tube Amp

rAVe Team

13 years ago

Bob Carver LLC announced this month a new 20-watt stereo amplifier called the Black Magic 20 (model: VTA20S). A screen voltage regulator and DC restoration circuit minimizes crossover distortion and output tube power dissipation. The 1.5-ohm output impedance coupled with current and voltage feedback loops also allows the amp to listen to the room via feedback from the speakers. It’s rated (conservatively, according to Bob Carver) at 20 WRMS in two-channel stereo mode or 40 WRMS when used in single-channel mono mode.

Here are the specs:

Input Impedance:	20K ohms in stereo, 125K ohms in mono
Nominal Voltage Gain:	26dB (into 8 ohms)
Input Tubes:	12AX7B
Output Tubes:	1 complementary pair of EL84Ms per channel
Rated Power (Stereo):	20 watts
Rated Power (Mono):	40 watts
Speaker Impedance:	4 to 16 ohms
Noise:	Better than 96dB A weighted ref. into 20 watts
Frequency Response:	8 Hz to 40 kHz (-3dB)
Full Power Bandwidth:	26Hz to 43 kHz without filters
Distortion:	Less than 0.5%
Hum:	-100dB
Generator Source Impedance:	1.5 ohms
Weight	17 pounds

The VTA20S lists for $2,100 and will ship in July.

It’s not listed on the Bob Carver website yet, but when it is, it will be here: http://www.bobcarver.com/products.asp