Avalon Design - VT-737SP
3 581,67 €
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Avalon VT-737SP, Console Strip - All-in-one mono mic preamp, compressor and EQ. This high-end signal processor combines a tube preamp, optical compressor and precise EQ, delivering warm sound and great versatility for recording. Ideal for sound professionals looking for exceptional quality. Classic version (silver).
ARTICLE N° 27090
Presentation
Avalon VT-737sp: The Complete Solution for Your Recording Studio.
The Avalon VT-737sp is a mono signal processor that integrates a tube mic preamp, optical compressor, and EQ. It is designed to deliver exceptional sound quality thanks to its Class A circuitry and vacuum tubes.
The preamp offers three input options (mic, DI instrument, line) and high gain.
The compressor uses an optical attenuator for precise dynamic control, with threshold, ratio, attack, and release adjustments.
The EQ offers four frequency bands with extensive adjustment options for sound shaping.
All housed in a 2U chassis. The VT-737sp is a top choice for demanding sound engineers looking for impeccable sound quality and great versatility. It also features a VU meter for precise monitoring of output levels and compressor gain reduction. Additionally, two VT-737SPs can be linked for stereo processing.
The Avalon VT-737sp is a mono signal processor that integrates a tube mic preamp, optical compressor, and EQ. It is designed to deliver exceptional sound quality thanks to its Class A circuitry and vacuum tubes.
The preamp offers three input options (mic, DI instrument, line) and high gain.
The compressor uses an optical attenuator for precise dynamic control, with threshold, ratio, attack, and release adjustments.
The EQ offers four frequency bands with extensive adjustment options for sound shaping.
All housed in a 2U chassis. The VT-737sp is a top choice for demanding sound engineers looking for impeccable sound quality and great versatility. It also features a VU meter for precise monitoring of output levels and compressor gain reduction. Additionally, two VT-737SPs can be linked for stereo processing.
Features
Canals
1
Pre-amp
Yes
Compressor
Yes
Limiter
Yes
Instrument input
Yes
Phantom power
Yes
Power supply
220 V
19" rack
2U, Yes
Other features
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Avalon VT-737SP
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Tube Preamplifier and Compressor
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Sound Excellence, Musicality
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Circuit Topology: Four Dual Triode Vacuum Tubes (Sovtek 6922), High Voltage Discrete Class A
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Preamplifier:
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• Three input selections: microphone, instrument DI, and balanced line.
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• Microphone input with balanced transformer and +48v phantom power.
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• High impedance instrument DI input with front panel jack.
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• Balanced line input, high level discrete Class A.
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• Class A preamplifier with two cascaded vacuum triodes.
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• Increased preamplifier gain with high gain switch.
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• Passive variable high pass filter and hardwired bypass relay.
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• Phase inversion relay available on all three inputs.
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Optical Compressor:
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• Minimal signal path with dual Class A vacuum triodes for gain matching.
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• Optical attenuator acts as a passive level controller.
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• Full dynamic control: soft compression or hard limiting via threshold, ratio, attack and release settings.
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• Spectral control with de esser via dual-sweep mid EQ and side-chain switch.
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• EQ can be positioned before or after the compressor.
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• Ability to link two VT 737SPs for stereo tracking.
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• Compressor bypass via sealed silver relay.
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Equalizer:
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• EQ using discrete high voltage Class-A transistors for optimum sonic performance.
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• High and low frequency bands with passive characteristics.
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• Mid bands with variable frequencies and Q width selection.
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• Mid band range extension into high and low bands via X10 frequency multipliers.
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• Bypass switch with sealed silver relay.
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• The EQ can be used on the sidechain with the high and low frequencies remaining in the audio path to enhance the sound.
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Output Level:
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• Variable control of the overall output level.
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• Output amplifier with a dual vacuum triode driving a discrete, balanced, DC coupled Class A output amplifier.
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Key Features:
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• Vacuum triode signal path.
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• Microphone input with balanced transformer.
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• High voltage circuitry for maximum headroom at +30dB.
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• Low noise of 92dB.
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• Internal discrete power supply with toroidal transformer.
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• Soft start system to extend tube life.
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• Stereo link for compressors.
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• Discrete Class A EQ with musical crossover design.
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• Sealed silver relays for signal routing.
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• Large control knobs with professional conductive plastic potentiometers.
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• VU meter for output level control and compressor gain reduction.
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Gain range:
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• Microphone: 0dB to +58dB.
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• Instrument: 0dB to +30dB.
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• Line: 27dB to 28dB.
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Maximum input level:
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• Microphone: +30dB at 1kHz.
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• Instrument: +30dB.
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• Line: +36dB.
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Maximum output level: +30dB.
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• Output gain: 45dB to 20dB.
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• Noise: 92dB (20kHz, unweighted).
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• Microphone noise EIN: 116dB (22Hz to 22kHz, unweighted).
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• Distortion THD, IMD: 0.5%.
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Frequency response: 10Hz to 120kHz (-2.5dB) with input filter, 1Hz to 200kHz (-3dB) line in/out.
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VU meter: 0VU = +4dB and gain reduction up to -20dB.
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High-cut filter: Variable 6dB per octave from 30Hz to 140Hz.
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Compressor: Passive optical attenuator with two vacuum tubes.
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Threshold: Variable from -30dB to +20dB.
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Ratio: Variable from 1:1 to 20:1.
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Attack: Variable from 2mS to 200mS.
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Release: Variable from 100mS to 5 seconds.
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Equalizer: Discrete Class A, active variable and switched passive
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• 4x Frequency bands:
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• Treble: Switched 10kHz, 15kHz, 20kHz, 32kHz, +/ 20dB.
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• High mid: Variable 200Hz to 2k8Hz and 2kHz to 28kHz, +/ 16dB.
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• Low mid: Variable 30Hz to 450Hz and 300Hz to 4k5Hz, +/ 16dB.
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• Bass: Switched 15Hz, 30Hz, 60Hz, 150Hz, +/ 24dB.
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Power supply: Internal toroidal from 100v to 240v, 50-60Hz selectable, 75 watts maximum.
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Dimensions: 482 x 305 x 89mm
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Weight: 10kg
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Packaging dimensions: 533 x 457 x 203mm
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Packaged weight: 11.8kg
To find out more...
The Class A preamplifier uses two cascaded dual triode tubes. A "hi gain" switch increases the overall gain of the preamplifier. A variable passive low-cut filter and a hardware bypass complete the input signal routing. Phase inversion is available on all three inputs.
OPTO-COMPRESSOR
The design of the opto-compressor section is based on a minimal circuit path with two Class A triode tubes. The optical attenuator acts as a simple passive level controller. Full dynamic control can be achieved, from mild compression to hard-knee limiting, using the threshold, ratio, attack and release controls, all displayed on the large VU meter.
Sibilance control can be achieved via an "EQ to sidechain" switch. The EQ section can be configured before or after the opto-compressor using a switch on the front panel. Two VT-737 SPs can be linked via a rear-panel cable for stereo management.
EQUALIZER
The VT-737SP uses 100% discrete, Class A, high-voltage transistors for optimum sonic performance. High and low frequencies benefit from all the features of the fully passive design, while the two mid bands offer variable frequency and detented Q width selections. The mid bands can extend to high or low frequencies via a 10x multiplier. When the EQ to sidechain button is engaged, both high and low frequency bands remain active in the audio signal.
OPTO-COMPRESSOR
The design of the opto-compressor section is based on a minimal circuit path with two Class A triode tubes. The optical attenuator acts as a simple passive level controller. Full dynamic control can be achieved, from mild compression to hard-knee limiting, using the threshold, ratio, attack and release controls, all displayed on the large VU meter.
Sibilance control can be achieved via an "EQ to sidechain" switch. The EQ section can be configured before or after the opto-compressor using a switch on the front panel. Two VT-737 SPs can be linked via a rear-panel cable for stereo management.
EQUALIZER
The VT-737SP uses 100% discrete, Class A, high-voltage transistors for optimum sonic performance. High and low frequencies benefit from all the features of the fully passive design, while the two mid bands offer variable frequency and detented Q width selections. The mid bands can extend to high or low frequencies via a 10x multiplier. When the EQ to sidechain button is engaged, both high and low frequency bands remain active in the audio signal.
