Back to the main page Back to category Preamps and Channel Strips
musical instrument details
Universal Audio 4-710d 4-Channel Tube Preamp compressor limiter A/D converter
Estimated price for orientation: 1 395 $
Category: Preamps and Channel Strips
Class:
Description Condition: Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition UPC: Does not apply
Great sounding, versatile preamp with compression, limiting, and analog-digital conversion.Less than 1 year old. Sounds great. Works great except some static / noise while turning the “Gain" knobs, usually around the max gain settings. No static / noise once set. Unit shows some cosmetic / rack wear.From the web —"The Universal Audio 4-710d is a boutique quality, 4-channel microphone/line preamplifier with unique tube and solid state tone-blending capabilities-perfect for a wide range of microphone and instrument sources. This versatile multichannel preamp offers selectable 1176-style compression circuitry on each channel, plus four additional line inputs feeding 8 channels of pristine analog-to-digital conversion. Building upon UA's classic analog design approach, combined with smart modern features, the 4-710d is the most flexible preamp in the UA lineup.At the core of the 4-710d are four channels of tone-blending "Twin-Finity" mic preamps with true-bypass 1176-style compression, including specially tuned "fast" and "slow" settings. Each of the four mic preamp channels allows for continuously variable phase-aligned tone, between a 100% tube and 100% solid state signal path. Send and return jacks are available for external processing or signal access.The eight analog inputs are digitized via ultra high-quality 24-bit A/D converters at selectable sample rates up to 192kHz. Digital output is available via dual ADAT "lightpipe" or AES/EBU DB-25 connectors, facilitating integration with most popular audio interfaces.FEATURESPreamplifiers4 TEC Award-winning 710 Twin-Finity microphone/line preamps, each featuring:Dual-path 285-volt Class-A tube and transimpedance solid state preampsPhase-aligned tone-blending of tube and solid state circuits, creamy to crunchyNewly designed 1176-style compression circuit per preamp channelJFET Direct Input with 2.2MÎ ultra Hi-Z impedance w/auto input overrideLarge backlit VU meters for flexible metering of input drive, gain level, and gain reductionBalanced send/return inserts (half-normalled)48V phantom power75Hz low cut filterPolarity switchMonolithic balanced output stageAnalog-to-Digital Conversion8 channels of high quality 24-bit A/D conversion:Selectable sample rates up to 192kHzDigital output via dual ADAT optical and AES/EBU DB-25 connectors8-channel soft limiter (switchable for all channels)Ultra-low jitter clock subsystemLED metering array with clip/hold indicators75Î BNC work clock I/ODigital outputs anti-pop protection on power-upOtherUniversal voltage internal power supplyHeavy-duty metal construction, two-space rack unitSPECIFICATIONS4-710d 4-Channel Mic PreampAnalog Section, Channels 1-4Note: all specifications are typical performance unless otherwise noted. Unless otherwise noted, all specifications are 20Hz-20kHz, minimum gain, maximum level, 24-bits, all switches in neutral or off mode, 100% solid state, digital output = 0dBFS.Microphone Preamplifier to Line Out:Gain Range: 56dBMin Gain: 14dBMax Gain: 70dBMax Input Level (bal): 6.7dBuMax Output Level (bal): 20dBuInput Impedance (bal): 2kÎInput Impedance (Hi-Z): 2.2MÎOutput Impedance (bal): 600 ÎEquiv. Input Noise (150Î, 56dB gain): -127dBuFrequency response (20Hz-20kHz): +0.1/-0.15dBCrosstalk (max gain, 1kHz): < -115dBLow Cut Filter:Type: Bessel 2nd OrderCorner Frequency: 75HzAttenuation (20Hz): -23dBPad:Attenuation: 15dBPhantom Power:Phantom Power Current (per jack): 10 mAVoltage: 48V ±1VCompressor:Threshold: 10dBuCompression Ratio: 4:1Fast Attack Time: 0.3msFast Release Time: 100msSlow Attack Time: 2.0msSlow Release Time: 1100msAnalog-To-Digital Converter SectionNote: all specifications are typical performance unless otherwise noted. Unless otherwise noted, all specifications are 20Hz-20kHz, minimum gain, maximum level, 24-bits, all switches in neutral or off mode, 100% solid state, -1dBFS output.Microphone & Line Inputs (Ch 1-4):THD+N (-1dBFS): -100dB (0.001%)SNR (A-Wt): 110dBDynamic Range (-60dBFS, A-wt): 110dBFrequency response: +0.1/-0.15dBStereo Phase: <0.3 degLine Input (Ch 5-8):THD+N (-1dBFS): -103dB (0.0007%)SNR (A-Wt): 117dBDynamic Range (-60dBFS, A-Wt): 117dBFrequency response: ±0.1dBStereo Phase: < 0.5 deg"Shipping price listed is for shipping to a street address in the contiguous USA and includes shipping, packing materials, & insurance, as well as signature confirmation for purchases requiring it.Please contact me within 24 hours of receiving the item if there are any problems with it or the package. Please save the box and packing materials for insurance purposes.Available for free pick-up in Los Angeles, CA if paid in cash at time of pickup as Paypal no longer considers pickup a valid shipping method.Yes -- I try to combine shipping for multiple items purchased at the same time. Please message me about specific auctions.
Description
| Condition: | Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition | UPC: | Does not apply |
Great sounding, versatile preamp with compression, limiting, and analog-digital conversion.Less than 1 year old. Sounds great. Works great except some static / noise while turning the “Gain" knobs, usually around the max gain settings. No static / noise once set. Unit shows some cosmetic / rack wear.From the web —"The Universal Audio 4-710d is a boutique quality, 4-channel microphone/line preamplifier with unique tube and solid state tone-blending capabilities-perfect for a wide range of microphone and instrument sources. This versatile multichannel preamp offers selectable 1176-style compression circuitry on each channel, plus four additional line inputs feeding 8 channels of pristine analog-to-digital conversion. Building upon UA's classic analog design approach, combined with smart modern features, the 4-710d is the most flexible preamp in the UA lineup.At the core of the 4-710d are four channels of tone-blending "Twin-Finity" mic preamps with true-bypass 1176-style compression, including specially tuned "fast" and "slow" settings. Each of the four mic preamp channels allows for continuously variable phase-aligned tone, between a 100% tube and 100% solid state signal path. Send and return jacks are available for external processing or signal access.The eight analog inputs are digitized via ultra high-quality 24-bit A/D converters at selectable sample rates up to 192kHz. Digital output is available via dual ADAT "lightpipe" or AES/EBU DB-25 connectors, facilitating integration with most popular audio interfaces.FEATURESPreamplifiers4 TEC Award-winning 710 Twin-Finity microphone/line preamps, each featuring:Dual-path 285-volt Class-A tube and transimpedance solid state preampsPhase-aligned tone-blending of tube and solid state circuits, creamy to crunchyNewly designed 1176-style compression circuit per preamp channelJFET Direct Input with 2.2MÎ ultra Hi-Z impedance w/auto input overrideLarge backlit VU meters for flexible metering of input drive, gain level, and gain reductionBalanced send/return inserts (half-normalled)48V phantom power75Hz low cut filterPolarity switchMonolithic balanced output stageAnalog-to-Digital Conversion8 channels of high quality 24-bit A/D conversion:Selectable sample rates up to 192kHzDigital output via dual ADAT optical and AES/EBU DB-25 connectors8-channel soft limiter (switchable for all channels)Ultra-low jitter clock subsystemLED metering array with clip/hold indicators75Î BNC work clock I/ODigital outputs anti-pop protection on power-upOtherUniversal voltage internal power supplyHeavy-duty metal construction, two-space rack unitSPECIFICATIONS4-710d 4-Channel Mic PreampAnalog Section, Channels 1-4Note: all specifications are typical performance unless otherwise noted. Unless otherwise noted, all specifications are 20Hz-20kHz, minimum gain, maximum level, 24-bits, all switches in neutral or off mode, 100% solid state, digital output = 0dBFS.Microphone Preamplifier to Line Out:Gain Range: 56dBMin Gain: 14dBMax Gain: 70dBMax Input Level (bal): 6.7dBuMax Output Level (bal): 20dBuInput Impedance (bal): 2kÎInput Impedance (Hi-Z): 2.2MÎOutput Impedance (bal): 600 ÎEquiv. Input Noise (150Î, 56dB gain): -127dBuFrequency response (20Hz-20kHz): +0.1/-0.15dBCrosstalk (max gain, 1kHz): < -115dBLow Cut Filter:Type: Bessel 2nd OrderCorner Frequency: 75HzAttenuation (20Hz): -23dBPad:Attenuation: 15dBPhantom Power:Phantom Power Current (per jack): 10 mAVoltage: 48V ±1VCompressor:Threshold: 10dBuCompression Ratio: 4:1Fast Attack Time: 0.3msFast Release Time: 100msSlow Attack Time: 2.0msSlow Release Time: 1100msAnalog-To-Digital Converter SectionNote: all specifications are typical performance unless otherwise noted. Unless otherwise noted, all specifications are 20Hz-20kHz, minimum gain, maximum level, 24-bits, all switches in neutral or off mode, 100% solid state, -1dBFS output.Microphone & Line Inputs (Ch 1-4):THD+N (-1dBFS): -100dB (0.001%)SNR (A-Wt): 110dBDynamic Range (-60dBFS, A-wt): 110dBFrequency response: +0.1/-0.15dBStereo Phase: <0.3 degLine Input (Ch 5-8):THD+N (-1dBFS): -103dB (0.0007%)SNR (A-Wt): 117dBDynamic Range (-60dBFS, A-Wt): 117dBFrequency response: ±0.1dBStereo Phase: < 0.5 deg"Shipping price listed is for shipping to a street address in the contiguous USA and includes shipping, packing materials, & insurance, as well as signature confirmation for purchases requiring it.Please contact me within 24 hours of receiving the item if there are any problems with it or the package. Please save the box and packing materials for insurance purposes.Available for free pick-up in Los Angeles, CA if paid in cash at time of pickup as Paypal no longer considers pickup a valid shipping method.Yes -- I try to combine shipping for multiple items purchased at the same time. Please message me about specific auctions.