The Avalon VT-737sp is a high-end, professional-grade channel strip known for its exceptional sound quality and versatility. Combining a preamp, compressor, and equalizer in a single unit, it's a go-to choice for recording studios, favored for its warm, transparent preamp that adds richness and depth to vocals, instruments, and more. Its optical compressor offers smooth, musical dynamics control, while the 4-band EQ allows precise tonal shaping. Renowned for its sonic fidelity and used by many top producers and artists, the VT-737sp remains a staple in the audio industry for its reliability and exceptional performance.
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| Circuit topology | Four dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class A |
| Gain Range | Microphone: Transformer balanced 850/2500 ohm, 0dB to +58dB Instrument: Unbalanced 1 meg ohm, 0dB to+30dB Line: Balanced Class A 20k ohms, -27dB to 28dB |
| Maximum input level and connector types | Microphone: 26dB@25Hz, +30dB@1kHz balanced XLR Instrument+30dB unbalanced front panel jack socket Line +36dB balanced XLR |
| Maximum output level | +30dB balanced 600 ohms, DC coupled, discrete Class A |
| Output type and gain | XLR connector, output trim gain -45dB to 20dB |
| Noise 20kHz unweighted | -92dB |
| Noise microphone EIN | -116dB, 22Hz to 22kHz unweighted |
| Distortion THD, IMD | 0.5% |
| Frequency response -/2.5dB | 10Hz to 120kHz input filter included |
| Frequency response -3dB | 1Hz to 200kHz line in-out |
| VU meter and gain reduction | High quality illuminated OVU =+4dB and gain reduction to -20dB |
| High cut filter | Variable 6dB per octave 30Hz to 140Hz |
| Compressor type | Optical passive attenuator incorporating twin vacuum tubes and stereo link |
| Threshold - Ratio | Threshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1 |
| Attack - Release | Attack variable 2mS to 200mS, release variable 100mS to 5 seconds |
| Equalizer type | Discrete Class A, variable active and switched passive design |
| Frequency bands (4) | Treble - switched 10kHz, 15kHz, 20kHz, 32kHz, +/- 20dB range, shelf High mid - variable 200Hz to 2k8Hz and 2kHz to 28kHz, +/- 16dB range, hi-lo Q Low mid - variable 30Hz to 450Hz and 300Hz to 4k5Hz, +/- 16dB range, hi-lo Q Bass - switched 15Hz, 30Hz, 60Hz, 150Hz, +/- 24dB range, shelf |
| AC power | Internal toroidal 100v to 240v, 50-60Hz selectable, 75 watts maximum |
| Dimensions | 19 x 12 x 3.5 in (482 x 305 x 89mm) |
| Weight | 22lbs (10kg) |
| Dimensions-shipping carton | 21 x 18 x 8 in (533 x 457 x 203mm) |
| Weight-packed | 26lbs (11.8kg) |