Avalon VT-737SP Microphone Preamplifier (Silver)

UPC: 696818737001 | SKU: VT-737SP
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2069 avenue Chartier, Dorval, QC H9P 1H3

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Sale price$5,436.00 CAD

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RedOne Music is a Canadian authorized Avalon retailer.
Business Hours: Monday - Friday: 9AM to 6PM | Weekends: 10AM to 5PM

Description

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.

  • 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
  • Circuit topologyFour dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class A
  • Gain RangeMicrophone: Transformer balanced 850/2500 ohm, 0dB to +58dBInstrument: Unbalanced 1 meg ohm, 0dB to+30dBLine: Balanced Class A 20k ohms, -27dB to 28dB
  • Maximum input level and connector typesMicrophone: 26dB@25Hz, +30dB@1kHz balanced XLRInstrument: +30dB unbalanced front panel jack socketLine: +36dB balanced XLR
  • Line+36dB balanced XLR
  • Maximum output level+30dB balanced 600 ohms, DC coupled, discrete Class A
  • Output type and gainTRS connector, output trim gain -45dB to 20dB (XLR connector by special request)
  • Noise 20kHz unweighted-92dB
  • Noise microphone EIN-116dB, 22Hz to 22kHz unweighted
  • Distortion THD, IMD0.5%
  • Frequency response -/2.5dB10Hz to 120kHz input filter included
  • Frequency response -3dB1Hz to 200kHz line in-out
  • VU meter and gain reductionHigh quality illuminated OVU =+4dB and gain reduction to -20dB
  • High cut filterVariable 6dB per octave 30Hz to 140Hz
  • Compressor typeOptical passive attenuator incorporating twin vacuum tubes and stereo link
  • Threshold - RatioThreshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1
  • Attack - ReleaseAttack variable 2mS to 200mS, release variable 100mS to 5 seconds
  • Equalizer typeDiscrete Class A, variable active and switched passive design
  • Frequency bands (4)Treble - switched 10kHz, 15kHz, 20kHz, 32kHz, +/- 20dB rangeShelf High mid - variable 200Hz to 2k8Hz and 2kHz to 28kHz, +/- 16dB rangeHi-lo Q Low mid - variable 30Hz to 450Hz and 300Hz to 4k5Hz, +/- 16dB rangeHi-lo Q Bass - switched 15Hz, 30Hz, 60Hz, 150Hz, +/- 24dB range, shelf
  • AC powerInternal toroidal 100v to 240v, 50-60Hz selectable, 75 watts maximum
  • Dimensions19 x 12 x 3.5 in (482 x 305 x 89mm)
  • Weight22lbs (10kg)
  • Dimensions-shipping carton21 x 18 x 8 in (533 x 457 x 203mm)
  • Weight-packed26lbs (11.8kg)

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FREE SHIPPING DETAILS

*Please note that only Canada Post delivers to PO boxes.

  • Free Shipping offer is valid on selected products only.
  • Orders will be sent by the shipping method of sender's choice unless specified at the time of order.
  • Free Shipping offer is valid only if all the items in the shopping cart are eligible for Free Shipping
    and the order is $200.00 and over (before taxes).
  • Free Shipping is valid only within Canada.
  • Orders shipped to Newfoundland, Northwest Territories, Nunavut, and Yukon are not eligilble for free shipping.
  • Our everyday low shipping charges will be applied to any non-eligible products at the time of checkout.
  • Courier shipments require an adult signature for proof of delivery.
  • RED ONE Music reserves the right to modify shipping fee.
  • Return shipping costs are the responsibility of the buyer.
RED ONE Music reserves the right to refuse any order with Free Shipping which the website accidentally
offered but did not meet the criteria above. The client will be notified with an every day low shipping charge and asked if they would like to proceed with the order or have it cancelled. 

EXPORT POLICY 
  • All delivery charges and taxes will be added when applicable to the prices shown on our Website.
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  • Please make sure you have entered the correct information for your coordinates and currency to get the correct pricing for your location.
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  • We do not refund unclaimed or undeliverable packages due incorrect/missing information. If a package is returned as undeliverable/unclaimed, it is the customers responsibility to follow up with the postal carrier and absorb all fees related.
Note: If the name on your billing address does not match the name on your credit card it will delay your order. 
Note: In case of damage during transport, a claim must be submitted to customer service within 24-48 hours as of the day of the receipt of the item.

 

ADDITIONAL SHIPPING FEES

Music Red One offers free shipping on orders that exceed $200; however, reserves the right to charge additional shipping fees for the following delivery services:

  • Shipment that requires a tailgate delivery but was not mentioned prior to the delivery.
  • Shipment resulting in inside delivery.
  • Deliveries with a limited access, and/or additional handling depending on the weight and size of the shipment.
  • Address error or absence of consignee requiring a second or more attempt to complete a delivery.

 

RETURNS

  • All returned opened items are subject to a min 15% to maximum 25% restocking fee.
  • All returned items can take up to 10-14 days to be processed.
  • If you are not completely satisfied with your purchase, returns will be accepted for store credit (less restocking fee & shipping) within 30 days of invoice date.
  • RED ONE Music will accept returns for defective goods that you have ordered from us within 30 days of invoice date for exchange only.
  • All Returns must contain all associated packaging and materials (ie accessories, manuals, wires, etc). Merchandise that is not returned in brand-new condition, including damages, abuse, marks, showing wear, or with missing packaging or accessories, will be subject to additional charges. Shipping and Handling charges (delivery and return) are non-refundable, including any shipping fees not directly incurred that are part of a free shipping promotion. Any items packaged with software, including but not limited to, DJ Controllers, Audio Interfaces, etc., must be returned with the original software disc including serial number and proof of deactivation.
  • Returns or exchanges will not be accepted for the following types of products: Customized, special order, used products, clearance products, expendable items, cartridges, replacement lamps/bulbs, opened computer hardware, rigging supplies, tape, needles, cleaner kits, effect fluid or juice, software, gels, music, displays/televisions/monitors or parts (replacement, repair or item components) - these products are final sale.
  • Returns or exchanges for the following items will only be accepted if they are in factory sealed packaging due to hygienic reasons: headphones & microphones.
  • All returns made MUST be authorized in advance by a customer service representative - and paper work dispatched to you via email. Your RMA form must be included in the box and your RMA number located on the waybill / packaging. Any returned items that arrive without prior approval or missing documentation may be rejected by our shippers. Once received, returns will be processed within 5 business days.
  • If your parcel was damaged in transport, please visit our Help Center and submit a ticket with your order number and include a picture of the exterior of the box, the interior of the box, and of the damaged product. No claims will be accepted without these pictures.
  • If you happen to receive a parcel that got damaged during transport, we must obtain the the following pictures in order to swiftly process a replacement:
    - outside of the shipping box along with a photo of the shipping label
    - inside packaging of the shipping box
    - the damaged unit itself
  • Refunds by e-transfer will be issued to the email address that is associated with your customer profile. The password will be sent to you in a separate email once the refund has been issued. Please note that a $5 service fee will be deducted from your total refund amount if:
    • e-transfer is not accepted in 15 calendar days
    • a change of email address is requested once the e-transfer has already been sent
    • a typo or error has been made in the email address that is associated to your customer profile

      RETURNS EXCEPTIONS
      This return policy covers the majority of our products, with the following exceptions:
      • Products accompanied by software
      • Harmonicas
      • Earplugs and in-ear monitors
      • Reeds
      • Cartridges and styluses

        WARRANTY
        • RED ONE Music is an authorized retailer for each of the brands available on our website. As such, your purchase is authorized for the manufacturer's warranty in Canada.

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        • If your order is paid by e-transfer, you then qualify for a store pick-up. You must present a valid government photo ID to match the name appearing on the e-transfer information.
        • If your order is paid by Paybright, you then qualify for a store pick-up. You must present a valid government photo ID to match the name appearing on the Paybright application.
        • Please note that all orders paid using PayPal will not qualify for store pick-up. If you paid by credit card using the PayPal platform, this payment method will also not qualify for store pick-up. 

        In-Store Pickup

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