{"title":"Avalon","description":"","products":[{"product_id":"avalon-ad-2022-dual-class-a-mic-pre-amplifier","title":"Avalon AD 2022 Dual Class A Mic Pre Amplifier","description":"\u003ch2\u003eAvalon AD 2022 Dual Class A Mic Pre Amplifier\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAvalon AD-2022\u003c\/strong\u003e is the fourth generation of fully discrete, symmetrical Pure Class A microphone preamplifiers. This dual mono mic pre features the original sonic capabilities and transparency of the M2, M22 and M5 preamplifiers. Plus several additional features, including selectable microphone source loading for optimized cable\/mic matching, improved high-voltage Class A regulated power supplies, two high Z instrument inputs, variable-passive high pass filter, quality\/silver wiring and doubled plated circuit boards for superior low level signal transfer. \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAvalon AD2022 Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSymmetrical Pure Class A design, two channels\u003c\/li\u003e\n\u003cli\u003eMicrophone and hi-Z instrument inputs\u003c\/li\u003e\n\u003cli\u003eGain switched 4dB steps plus +\/- 3dB fine output trim\u003c\/li\u003e\n\u003cli\u003eSelectable microphone input impedance matching\u003c\/li\u003e\n\u003cli\u003eLow noise -126dB EIN\u003c\/li\u003e\n\u003cli\u003eUltra high quality, low-ratio, balanced input transformer\u003c\/li\u003e\n\u003cli\u003eBalanced, high-current Class A output to 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The VT737SP features a Class-A tube preamp, opto-compressor, sweep equalizer, output level and VU metering in a 2U space. 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\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVacuum tube triode signal path\u003c\/li\u003e\n\u003cli\u003eTransformer balanced microphone input\u003c\/li\u003e\n\u003cli\u003eHigh-voltage circuits for maximum headroom to +30dB, low noise -92dB\u003c\/li\u003e\n\u003cli\u003eInternal discrete power supply with toroidal transformer\u003c\/li\u003e\n\u003cli\u003eSoft-start tube life extender\u003c\/li\u003e\n\u003cli\u003eStereo link for compressors\u003c\/li\u003e\n\u003cli\u003eAll discrete Class A equalizer with musical passive filter design\u003c\/li\u003e\n\u003cli\u003eSealed silver relays for signal routing\u003c\/li\u003e\n\u003cli\u003eLarge control knobs with professional conductive plastic potentiometers\u003c\/li\u003e\n\u003cli\u003eVU meter for output level monitoring and compressor gain reduction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit topology:\u003c\/strong\u003e Four dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain Range:\u003c\/strong\u003e \n\u003cul\u003e\n\u003cli\u003eMicrophone: Transformer balanced 850\/2500 ohm, 0dB to +58dB \u003c\/li\u003e\n\u003cli\u003eInstrument: Unbalanced 1 meg ohm, 0dB to+30dB \u003c\/li\u003e\n\u003cli\u003eLine: Balanced Class A 20k ohms, -27dB to 28dB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum input level and connector types:\u003c\/strong\u003e \n\u003cul\u003e\n\u003cli\u003eMicrophone 26dB@25Hz, +30dB@1kHz balanced XLR \u003c\/li\u003e\n\u003cli\u003eInstrument +30dB unbalanced front panel jack socket\u003c\/li\u003e\n\u003cli\u003eLine +36dB balanced XLR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum output level:\u003c\/strong\u003e +30dB balanced 600 ohms, DC coupled, discrete Class A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput type and gain:\u003c\/strong\u003e XLR connector, output trim gain -45dB to20dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise 20kHz unweighted:\u003c\/strong\u003e -92dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise microphone EIN:\u003c\/strong\u003e -116dB, 22Hz to 22kHz unweighted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistortion THD, IMD:\u003c\/strong\u003e 0.5%Frequency response -\/2.5dB 10Hz to 120kHz input filter included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency response -3dB:\u003c\/strong\u003e 1Hz to 200kHz line in-out\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVU meter and gain reduction:\u003c\/strong\u003e High quality illuminated OVU =+4dB and gain reduction to -20dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh cut filter:\u003c\/strong\u003e Variable 6dB per octave 30Hz to 140Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressor type:\u003c\/strong\u003e Optical passive attenuator incorporating twin vacuum tubes and stereo link\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreshold - 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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.\u003c\/p\u003e\n\u003cp\u003eThis 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\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eCircuit topology:\u003c\/strong\u003e Four dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class A\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eGain Range\u003c\/strong\u003e:\u003c\/li\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eMicrophone: Transformer balanced 850\/2500 ohm, 0dB to +58dB\u003c\/li\u003e\n\n\u003cli\u003eInstrument: Unbalanced 1 meg ohm, 0dB to+30dB\u003c\/li\u003e\n\n\u003cli\u003eLine: Balanced Class A 20k ohms, -27dB to 28dB\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eMaximum input level and connector types\u003c\/strong\u003e:\u003c\/li\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eMicrophone: 26dB@25Hz, +30dB@1kHz balanced XLR\u003c\/li\u003e\n\n\u003cli\u003eInstrument+30dB unbalanced front panel jack socket\u003c\/li\u003e\n\n\u003cli\u003eLine +36dB balanced XLR\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eMaximum output level\u003c\/strong\u003e: +30dB balanced 600 ohms, DC coupled, discrete Class A\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eOutput type and gain\u003c\/strong\u003e: XLR connector, output trim gain -45dB to 20dB\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eNoise 20kHz unweighted\u003c\/strong\u003e: -92dB\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eNoise microphone EIN\u003c\/strong\u003e: -116dB, 22Hz to 22kHz unweighted\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eDistortion THD, IMD\u003c\/strong\u003e: 0.5%\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eFrequency response -\/2.5dB\u003c\/strong\u003e: 10Hz to 120kHz input filter included\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eFrequency response -3dB\u003c\/strong\u003e: 1Hz to 200kHz line in-out\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eVU meter and gain reduction\u003c\/strong\u003e: High quality illuminated OVU =+4dB and gain reduction to -20dB\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eHigh cut filter\u003c\/strong\u003e: Variable 6dB per octave 30Hz to 140Hz\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eCompressor type\u003c\/strong\u003e: Optical passive attenuator incorporating twin vacuum tubes and stereo link\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eThreshold - Ratio\u003c\/strong\u003e: Threshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eAttack - Release\u003c\/strong\u003e: Attack variable 2mS to 200mS, release variable 100mS to 5 seconds\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eEqualizer type\u003c\/strong\u003e: Discrete Class A, variable active and switched passive design\u003c\/li\u003e\n\n\u003cli\u003e\u003cstrong\u003eFrequency bands (4):\u003c\/strong\u003e\u003c\/li\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eTreble - switched 10kHz, 15kHz, 20kHz, 32kHz, +\/- 20dB range, shelf\u003c\/li\u003e\n\n\u003cli\u003eHigh mid - variable 200Hz to 2k8Hz and 2kHz to 28kHz, +\/- 16dB range, hi-lo Q\u003c\/li\u003e\n\n\u003cli\u003eLow mid - variable 30Hz to 450Hz and 300Hz to 4k5Hz, +\/- 16dB range, hi-lo Q\u003c\/li\u003e\n\n\u003cli\u003eBass - switched 15Hz, 30Hz, 60Hz, 150Hz, +\/- 24dB range, shelf\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eAC power\u003c\/strong\u003e: Internal toroidal 100v to 240v, 50-60Hz selectable, 75 watts maximum\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 19 x 12 x 3.5 in (482 x 305 x 89mm)\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 22lbs (10kg)\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eDimensions-shipping carton\u003c\/strong\u003e: 21 x 18 x 8 in (533 x 457 x 203mm)\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eWeight-packed\u003c\/strong\u003e: 26lbs (11.8kg)\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n","brand":"Avalon","offers":[{"title":"Default Title","offer_id":31461134565422,"sku":"SAVAVT737SPBL","price":2470.83,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0256\/2988\/4462\/products\/savavt737spbl.jpg?v=1578922281"},{"product_id":"avalon-v55-dual-mono-high-voltage-pure-clase-a-multi-purpose-instrument-line-and-mic-preamp","title":"Avalon V55 - Dual Mono, High Voltage, Pure Clase A, multi-purpose instrument, line and mic preamp","description":"\u003ch2\u003eAvalon V55\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAvalon V55\u003c\/strong\u003e is dual mono, Pure class A microphone preamp, DI instrument preamp and features transformer isolated outputs for re-amping.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual Mono, Pure Class A, 100% discrete design\u003c\/li\u003e\n\u003cli\u003eForward musical detail and sonic excellence\u003c\/li\u003e\n\u003cli\u003eMinimum audio signal path with 10 position exteded range TONE-BANK™\u003c\/li\u003e\n\u003cli\u003eHigh quality transformer input \u0026amp; isolated output\u003c\/li\u003e\n\u003cli\u003eMicrophone and Hi-Z inputs to +36dB\u003c\/li\u003e\n\u003cli\u003eVery low noise -100dB\u003c\/li\u003e\n\u003cli\u003eHigh headroom +30dB\u003c\/li\u003e\n\u003cli\u003eSwitched 2dB, high-gain preamplifer to +66dB\u003c\/li\u003e\n\u003cli\u003eDC coupled Pure Class A output\u003c\/li\u003e\n\u003cli\u003eLarge illuminated professional VU meter\u003c\/li\u003e\n\u003cli\u003eTwin LED peak signal indicators\u003c\/li\u003e\n\u003cli\u003eRegulated +48v phantom power supply\u003c\/li\u003e\n\u003cli\u003eLow distortion less than 0.5% THD and IMD\u003c\/li\u003e\n\u003cli\u003eVariable passive high pass (bass cut) filter\u003c\/li\u003e\n\u003cli\u003eAll signal routing with sealed silver relays\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 align=\"JUSTIFY\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, 'Sans Serif'; font-size: small;\" size=\"2\" face=\"Arial, Helvetica, Sans Serif\" data-mce-style=\"font-family: Arial, Helvetica, 'Sans Serif'; font-size: small;\"\u003e\u003cb\u003eSONIC EXCELLENCE\u003c\/b\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp align=\"JUSTIFY\"\u003e\u003cspan\u003eThe Avalon V55 DI-RE-MIC Preamplifer is an ultra-high performance professional dual channel preamplifier, DI and RE-amper. Created for maximum versatility, the V55's sonic signature - \u003cem\u003e\"Deep and Controlled Bass, Musical Mid-range and enhanced Vocal Projection\"\u003c\/em\u003e combine with a unique set of user features including, 100% discrete Pure Class A amplification, Avalon's unique \u003cem\u003e\"passive\"\u003c\/em\u003e TONE-BANK™, professional VU meter with dual peak LED's, multiple outputs including an instrument level transformer isolated Re-amp. Designed to optimize absolute signal integrity and musical performance, the V55 is ideal for ribbon, dynamic and condenser microphones, bass guitar, acoustic instruments, electric guitars, keyboards, synthesizers, and very low output passive pickups\u003c\/span\u003e\u003cspan style=\"font-family: Arial, Helvetica, 'Sans Serif'; font-size: small;\" size=\"2\" face=\"Arial, Helvetica, Sans Serif\" data-mce-style=\"font-family: Arial, Helvetica, 'Sans Serif'; font-size: small;\"\u003e\u003cspan\u003e. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"JUSTIFY\"\u003e\u003cspan\u003eThe state-of-the-art DI input stage provides a very-high inpedance, \u003cem\u003e\"zero-load\"\u003c\/em\u003e effect on sensitive pickups and keyboards, while maintaining massive input headroom to +36dB before overload.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 align=\"JUSTIFY\"\u003e\u003cspan style=\"font-family: Arial, Helvetica, 'Sans Serif'; font-size: small;\" size=\"2\" face=\"Arial, Helvetica, Sans Serif\" data-mce-style=\"font-family: Arial, Helvetica, 'Sans Serif'; font-size: small;\"\u003e\u003cb\u003eMINIMUM SIGNAL PATH DESIGN\u003c\/b\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp align=\"JUSTIFY\"\u003e\u003cspan\u003eThe V55 includes a very high quality input transformer (same as the Avalon VT-737sp) with dual microphone input impedance loading for perfect mic\/cable matching, high-cut switch for eliminating unwanted acoustic pickup and high frequency noise, headphone monitor amp and DC coupled, 100% Class A output amplifiers for defined bass control. A buffered \"thru\" output for \u003cem\u003ezero-instrument-load\u003c\/em\u003e tuners or power amp inputs, internal toroid power transformer with discrete high-voltage power supplies for low noise and sealed silver relays for transparent signal routing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 align=\"JUSTIFY\"\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eAudio Circuit Topology\u003c\/strong\u003e: 100% discrete, high-voltage, Class A, Dual-Channel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eGain\u003c\/strong\u003e: Switched 2dB steps, -\/+ 0.2dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInput Modes (4)\u003c\/strong\u003e: Line, Instrument-DI, Microphone high-Z \u0026amp; low-Z\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eLINE (transformer)\u003c\/strong\u003e: Balanced 9,000 Ω, XLR~TRS, gain -2dB~+38dB, max. input 47dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eINSTRUMENT ~ DI\u003c\/strong\u003e: Unbalanced 10,000,000 Ω, TRS, gain +2dB~+42dB, max. input 36dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMICROPHONE HiZ (transformer)\u003c\/strong\u003e: Balanced 6,600 Ω, XLR, gain +20dB ~ +60dB, max. input 23dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMICROPHONE LoZ (transformer)\u003c\/strong\u003e: Balanced 1,800 Ω, XLR, gain +26dB ~ +66dB, max. input 19dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePAD (passive input attenuator)\u003c\/strong\u003e: Line -13dB, Instrument -10dB \u0026amp; Microphone -15dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePhantom Power\u003c\/strong\u003e: 48V regulated @10mA, blue=power ON, red=phantom ON\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eThru output\u003c\/strong\u003e: Unbalanced, impedance buffered TRS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaximum line ouput level\u003c\/strong\u003e: +30dB, DC coupled, balanced 600 Ω, XLR~TRS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMaximum isolated output level\u003c\/strong\u003e: +12dB transformer isolated, unbalanced\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHeadphone output\u003c\/strong\u003e: 0.5W, 600 Ω, TRS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eNoise 20kHz, unweighted\u003c\/strong\u003e: -98dBu typical, minimum gain\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eNoise (EIN) 22Hz-22kHz\u003c\/strong\u003e: -128dB @ 40dB gain (low Z microphone output)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eDistortion THD, IMD\u003c\/strong\u003e: 0.05% at +10dB, 0.5% at +30dBu\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFrequency response, -\/+0.5dB\u003c\/strong\u003e: 5Hz to 20kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFrequency response, -3dB\u003c\/strong\u003e: 2Hz to 500kHz (internal band limited)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eVU Meter\u003c\/strong\u003e: Professional moving coil VU, wide range -33dB ~ +18dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSignal LED's\u003c\/strong\u003e: LED peak capture, blue=0dB, red=20dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHigh Cut Filter\u003c\/strong\u003e: -3dB at 3.7kHz minimum phase design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePolarity reverse (phase)\u003c\/strong\u003e: All outputs (relay switched)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTone Shape\u003c\/strong\u003e: Ten \"passive\" filter-tone selections\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eAC power\u003c\/strong\u003e: Internal toroidal AC supply, dual voltage, 115~230v selectable 50\/60Hz, 35w max per channel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: 19 x 3.5 x 12 in (483 x 88 x 305mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWeight-packed\u003c\/strong\u003e: 24lbs (10.9kg)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Avalon","offers":[{"title":"Default Title","offer_id":43102623203506,"sku":"SAVAV55","price":2915.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0256\/2988\/4462\/files\/Avalon-V55-Front.jpg?v=1771953985"},{"product_id":"avalon-st-4-vacuum-tube-set-4-for-vt737sp-vt747sp-matched-electro-harmonix-6922","title":"Avalon ST-4 - Vacuum Tube Set (4) for VT737SP \u0026 VT747SP. Matched Electro-Harmonix 6922","description":"\u003ch2\u003eAvalon ST-4 - Vacuum Tube Set (4) for VT737SP \u0026amp; VT747SP. Matched Electro-Harmonix 6922\u003c\/h2\u003e\n\u003cdiv class=\"productView\" data-event-type=\"product\" data-entity-id=\"120\" data-name=\"Avalon ST-4 Spare Tube kit\" data-product-category=\"Products\" data-product-brand=\"\" data-product-price=\"289\" data-product-variant=\"single-product-option\"\u003e\n\u003carticle class=\"productView-description\"\u003e\n\u003cdiv class=\"tabs-contents\"\u003e\n\u003cdiv class=\"tab-content is-active\" id=\"tab-description\"\u003e\n\u003cp\u003eST-4 Spare tube kit for VT-737sp and VT-747sp includes four matched military 6922 tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Avalon","offers":[{"title":"Default Title","offer_id":55896371200374,"sku":"RAVAST4","price":202.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0256\/2988\/4462\/files\/ElectroHarmonix6922ValveKit_ec783efb-1af1-46d8-a742-a09d91a7c776.jpg?v=1752053399"}],"url":"https:\/\/studiocare.com\/collections\/avalon\/brand_electro-harmonix.oembed","provider":"Studiocare","version":"1.0","type":"link"}