{"product_id":"avalon-design-vacuum-tube-series","title":"Avalon Design Vacuum Tube Series","description":"\u003cp style=\"padding-left: 40px;\"\u003e\u003cbr\u003e\u003cspan style=\"font-family: Arial;\"\u003e!WINNER - 1999 EM Editors Choice - Best Preamp\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e!WINNER - 2015 Readers Choice Award - Outboard Gear\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e \u003c\/p\u003e\n\u003ctable border=\"0\" width=\"85%\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003e\n\u003ctable border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" width=\"40%\"\u003e\u003cspan style=\"font-size: small;\"\u003eDIRECT SIGNAL PAT\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"60%\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cp\u003e\u003ci\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: medium;\"\u003e\u003cbr\u003e\u003cspan style=\"font-size: small;\"\u003e\"This is the very best channel strip in the world! I love the warmth it's adding to my DAW.\" - \u003c\/span\u003e\u003c\/span\u003e\u003c\/i\u003e\u003cspan style=\"font-size: small;\"\u003e\u003ci\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif;\"\u003eKenny H., KY\u003c\/span\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: small;\"\u003e\u003ci\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\"The Vt-737sp is ungodly, awesome, DA BOMB!\" - Ian C., PA\u003c\/span\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003e\u003ci\u003e\"My Avalon Vt-737sp is AMAZING. My friend recommended it to me. I was playing some Spanish guitar on one of his records one day, and he said here's what the Avalon sounds like. I bought mine that week.\" - \u003c\/i\u003e\u003c\/span\u003e\u003cspan style=\"font-size: small;\"\u003e\u003ci\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif;\"\u003eScott V., Email\u003c\/span\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cdiv align=\"left\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003cp align=\"justify\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif;\"\u003eThe Avalon VT-737SP\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e features a combination of TUBE preamplifiers, opto-compressor, sweep equalizer, output level and VU metering in a 2U space.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003e\u003cb\u003ePREAMPLIFIER\u003c\/b\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003e\u003cbr\u003eThe 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003e\u003cb\u003eOPTO-COMPRESSOR\u003c\/b\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003e\u003cbr\u003eThe 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003e\u003cb\u003eSWEEP-EQUALIZER AND OUTPUT LEVEL\u003c\/b\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003e\u003cbr\u003eThe 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" align=\"left\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: xx-small;\"\u003e\u003ca href=\"https:\/\/www.avalondesign.com\/images\/largeback.jpg\"\u003e\u003cimg src=\"https:\/\/www.avalondesign.com\/images\/vt737sp-02.jpg\" width=\"280\" height=\"93\" border=\"0\" hspace=\"10\" vspace=\"10\"\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003e\u003cb\u003eAVALON VT-737SP FEATURES\u003cbr\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\"\u003eVacuum 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"5\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eVT-737SP SPECIFICATIONS\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eCircuit topology\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eFour dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eGain Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eMicrophone: 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\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eMaximum input level and connector types\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eMicrophone: 26dB@25Hz, +30dB@1kHz balanced XLR Instrument+30dB unbalanced front panel jack socket\u003cbr\u003eLine +36dB balanced XLR\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eMaximum output level\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e+30dB balanced 600 ohms, DC coupled, discrete Class A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, Sans Serif; font-size: small;\"\u003e\u003cb\u003eOutput type and gain\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, Sans Serif; font-size: small;\"\u003eXLR connector, output trim gain -45dB to 20dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eNoise 20kHz unweighted\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e-92dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eNoise microphone EIN\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e-116dB, 22Hz to 22kHz unweighted\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eDistortion THD, IMD\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e0.5%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eFrequency response -\/2.5dB\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e10Hz to 120kHz input filter included\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eFrequency response -3dB\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e1Hz to 200kHz line in-out\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eVU meter and gain reduction\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eHigh quality illuminated OVU =+4dB and gain reduction to -20dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eHigh cut filter\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eVariable 6dB per octave 30Hz to 140Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eCompressor type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eOptical passive attenuator incorporating twin vacuum tubes and stereo link\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eThreshold - Ratio\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eThreshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eAttack - Release\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eAttack variable 2mS to 200mS, release variable 100mS to 5 seconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eEqualizer type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eDiscrete Class A, variable active and switched passive design\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eFrequency bands (4)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eTreble - 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\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eAC power\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003eInternal toroidal 100v to 240v, 50-60Hz selectable, 75 watts maximum\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eDimensions\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e19 x 12 x 3.5 in (482 x 305 x 89mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eWeight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e22lbs (10kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eDimensions-shipping carton\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e21 x 18 x 8 in (533 x 457 x 203mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"RIGHT\" valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e\u003cb\u003eWeight-packed\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\u003cspan style=\"font-family: Arial, Helvetica; font-size: small;\"\u003e26lbs (11.8kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/center\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMore information you can find here:\u003c\/strong\u003e\u003c\/em\u003e \u003ca href=\"https:\/\/www.avalondesign.com\/vt737sp.html\" target=\"_blank\" rel=\"noopener\"\u003eVT 737sp\u003c\/a\u003e\u003c\/p\u003e","brand":"Avalon Design","offers":[{"title":"SP","offer_id":53125426905427,"sku":"210000001358","price":4300.0,"currency_code":"EUR","in_stock":true},{"title":"BL","offer_id":53125426938195,"sku":"210000001359","price":4300.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1043\/4052\/1299\/files\/vt-737sp-brfront-44132.jpg?v=1772275483","url":"https:\/\/www.voltmusicstore.com\/products\/avalon-design-vacuum-tube-series","provider":"Volt Music Store","version":"1.0","type":"link"}