Avalon Design VT-737SP Class A Mono Tube Channel Strip

Description: Avalon Design VT-737SP Class A Mono Tube Channel Strip Avalon Design VT-737SP Class A Mono Tube Channel StripThe Avalon VT-737SP features a combination of TUBE preamplifiers, opto-compressor, sweep equalizer, output level and VU metering in a 2U space. PREAMPLIFIER The VT-737SP has three input selections: 1. The VT-737SP features a 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. SWEEP-EQUALIZER AND OUTPUT LEVEL The VT-737SP equalizer utilizes 100% discrete, Class A-high-voltage transistors for optimum sonic performance. The high and low frequency bands provide the smooth characteristics of an all passive design, while the dual mid bands include variable frequency and switched Q-width selection. The enhanced range of the mid bands is extended into the high and low bands by the use of X10 frequency multipliers. The bypass switch incorporates a sealed silver relay for the most direct signal path. When the EQ to sidechain is engaged, the high-low EQ remains in the audio path for “tone enhancement”. The output level control provides a variable control of the overall signal path. The output amplifier utilizes another dual triode vacuum tube driving a 100% discrete, Class A, high-current, balanced and DC coupled low noise output amplifier. AVALON VT-737SP FEATURES Vacuum tube triode signal path, transformer balanced microphone input, high-voltage circuits for maximum headroom to +30dB, low noise -92dB, internal discrete power supply with toroidal transformer, soft-start tube life extender, stereo link for compressors, all discrete Class A equalizer with musical passive filter design, sealed silver relays for signal routing, large control knobs with professional conductive plastic potentiometers, VU meter for output level monitoring and compressor gain reduction. Features and further detailsKey FeaturesTube preampOpto-compressorSweep equalizerOutput level controlVU meteringBalanced mic input, front-panel instrument DI, and balanced line inputsHigh-gain switchHigh-pass filterTechnical SpecificationsCircuit topology4 dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class AGain Range MicrophoneTransformer balanced 850/2500 ohm, 0dB to +58dB Instrument: Unbalanced 1 meg ohm, 0dB to +30dBLineBalanced Class A 20k ohms, -27dB to 28dBMaximum input level and connector typesMicrophone26dB@25Hz, +30dB@1kHz balanced XLR Instrument+30dB unbalanced front panel jack socketLine +36dB balanced XLRMaximum output level+30dB balanced 600 ohms, DC coupled, discrete Class AOutput type and gainXLR connector, output trim gain -45dB to20dBNoise 20kHz unweighted-92dBNoise microphone EIN-116dB, 22Hz-22kHz unweightedDistortion THD, IMD0.5%Frequency response -2.5dB10Hz-120kHz input filter includedFrequency response -3dB1Hz-200kHz line in-outVU meter and gain reductionHigh quality illuminated OVU =+4dB and gain reduction to -20dBHigh cut filterVariable 6dB per octave 30Hz-140HzCompressor typeOptical passive attenuator incorporating twin vacuum tubes and stereo linkThreshold – RatioThreshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1Attack – ReleaseAttack variable 2mS to 200mS, release variable 100mS to 5 secondsEqualizer typeDiscrete Class A, variable active and switched passive designFrequency bands (4)Treble – switched 10kHz, 15kHz, 20kHz, 32kHz, ±20dB range, shelf High mid – variable 200Hz-28kHz and 2kHz -28kHz, ±6dB range, hi-lo Q Low mid – variable 30Hz-450Hz and 300Hz-4k5Hz, ±16dB range, hi-lo Q Bass – switched 15Hz, 30Hz, 60Hz, 150Hz, ±24dB range, shelfAC powerInternal toroidal 100v to 240v, 50-60Hz selectable, 75 watts maximumDimensions19 x 12 x 3.5 in (482 x 305 x 89mm)Weight22 lbs (10 kg)Dimensions – shipping carton21 in x 18 in x 8 in (533 mm x 457 mm x 203 mm)Weight-packed26 lbs (11.8 kg) Contact us We can be contacted at any time through eBay messages if you have any questions, comments or product requests. We will respond to you within 24 hours and do our best to help you out! We encourage our customers to contact us with any questions or concerns! We'd like to be sure you are completely satisfied with your purchase. NEW ITEMS return policy 1. If you are not satisfied with your product, you may return it within 30-day window upon receiving the product. 2. Returns on new items are subject to restocking fees anywhere from 10-50% at the discretion of the seller. All returns will be inspected for any missing or damaged packaging or accessories or any other devaluation of the product. 3. Return shipping costs for new items are the responsibility of the buyer 4. Shipping charges incurred during fulfillment of the orders be deducted from the refund. 5. Items returned because a buyer found a "better price" will be subject to a partial refund. 6. All new item returns must receive an RMA number prior to the return. 7. Return items must be repackaged properly in the same care you received. USED/OPEN BOX Items return policy ALL sales are final / NO RETURN Any Items above $1000 return policy 1. These items purchased are eligible for return with restocking fee of not less than 50%. 2. Items must be returned as unopened, in original brand-new condition, showing no signs of wear or usage. CANCELLATIONS New and used items are subject to a 5% processing fee if cancelled before delivery.

Price: 4699 USD

Location: Santa Fe Springs, California

End Time: 2024-08-24T23:54:53.000Z

Shipping Cost: 0 USD