loading
reading
writing
saving
searching
Avalon Vt 737 sp vaccum Tube preamp - $1,450 (Sacramento)
make / manufacturer:
Avalon design
model name / number:
737 Vt sp
QR Code Link to This Post
Serious inquiries only
no low ballling .
Thank you.
Avalon Vt 737 Sp
Preamplifier
The Vt 737Sp has three input selections:
1. Higher-performance microphone input transformer with +48v phantom selection
2. Instrument DI high source input with jack located on front panel
3. Balanced line input, discrete high-level Class A
The Class A preamplifier utilizes two cascaded, dual vacuum tube triodes configured with minimum negative feedback. A high gain switch boosts the overall gain of the preamplifier. The four high quality tubes are configured as singled ended anode coupled followers. A passive-variable high pass filter and hard-wire relay bypass completes the input signal conditioning. The phase reverse relay is available on all three inputs.
Opto-compressor
The opto-compressor features a minimum signal path design with twin Class A vacuum tube triodes for gain matching. The optical attenuator acts as a simple passive level controller. Full dynamic control from soft compression to hard- knee limiting can be achieved with threshold, ratio-compression, attack and release controls plus gain reduction selection on the large VU meter. Special spectral control including de-ess is available with the dual sweep mid EQ to side-chain switch. The EQ section can be flipped pre or post the opto-compressor via a front panel switch for alternate effects and tone shaping. Two VT-737SPs can be linked via a rear panel link cable for stereo tracking. The compressor bypass is a sealed silver relay for the most direct signal path.y