Universal Audio 4-710d Twin-Finity 4-Channel Mic Preamp (with 1176 Dynamics and A/D Conversion)
Dale #:
UNAU-4710DAvailability:
Not in Stock - Reserve YoursThis item is not in stock and needs to be ordered from the manufacturer. Your payment will be charged after completing checkout. We will strive to ship as soon as possible, pending availability.
Retail Price: $2,499.00 Our Price: $1,999.00
Free Shipping (Continental US)
Suggested Accessories
Description
The Universal Audio 4-710d is a boutique quality, four-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 multi-channel preamp offers selectable 1176-style compression circuitry on each channel, plus four additional line inputs feeding eight 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.
Features:
- Four TEC Award-winning 710 Twin-Finity™ microphone/line preamps, each featuring:
- Phase-aligned tone-blending of tube and solid state circuits, creamy to crunchy
- Newly designed 1176-style compression circuit per preamp channel
- Backed by 1-Year limited warranty
Preamplifiers
- Four TEC Award-winning 710 Twin-Finity™ microphone/line preamps, each featuring:
- Dual-path 285-volt Class-A tube and transimpedance solid-state preamps
- Phase-aligned tone-blending of tube and solid state circuits, creamy to crunchy
- Newly designed 1176-style compression circuit per preamp channel
- JFET Direct Input with 2.2M ohm ultra Hi-Z impedance w/auto input override
- Large backlit VU meters for flexible metering of input drive, gain level, and gain reduction
- Balanced send/return inserts (half-normalled)
- 48V phantom power
- 75 Hz low cut filter
- Polarity switch
- Monolithic balanced output stage
Analog-to-Digital Conversion
- Eight channels of high quality 24-bit A/D conversion:
- Selectable sample rates up to 192 kHz
- Digital output via dual ADAT optical and AES/EBU DB-25 connectors
- 8-channel soft limiter (switchable for all channels)
- Ultra-low jitter clock subsystem
- LED metering array with clip/hold indicators
- 75 ohm BNC work clock I/O
- Digital outputs anti-pop protection on power-up
Other
- Universal voltage internal power supply
- Heavy-duty metal construction, two-space rack unit
- One year warranty including parts and labor
More +
Product Specs
| Analog Section, Channels 1-4 | |
| MICROPHONE PREAMPLIFIER TO LINE OUT | |
| Gain Range | 56 dB |
| Min Gain | 14 dB |
| Max Gain | 70 dB |
| Max Input Level (bal) | 6.7 dBu |
| Max Output Level (bal) | 20 dBu |
| Max Output Level (unbal) | 14 dBu |
| Input Impedance (bal) | 2 k? |
| Input Impedance (Hi-Z) | 2.2M? |
| Output Impedance (bal) | 600 ? |
| Output Impedance (unbal) | 300 ? |
| Equiv. Input Noise (150?, 56 dB gain) | -127 dBu |
| Frequency Response (20Hz-20kHz) | +0.1/-0.15 dB |
| Phase (Mic In to Line Out, 20 kHz) | < 0.5 deg |
| Stereo Phase Mismatch | < 0.6 deg |
| Stereo Level Balance (1 kHz) | < 0.01 dB |
| Crosstalk (max gain, 1kHz) | < -115 dB |
| Common Mode Rejection Ratio (max gain, 60 Hz) | > 62 dB |
| LINE IN TO LINE OUT | |
| Gain Range | 56 dB |
| Min Gain | -7 dB |
| Max Gain | 49 dB |
| Max Input Level (bal) | 26 dBu |
| Max Input Level (unbal) | 20 dBu |
| Max Output Level (bal) | 20 dBu |
| Input Impedance (bal) | 10 k? |
| Input Impedance (unbal) | 5 k? |
| Output Impedance (bal) | 600 ? |
| Output Impedance (unbal) | 300 ? |
| Frequency Response (20Hz-20kHz) | +0.1 / -0.15 dB |
| Phase (Line In to Line Out, 20 kHz) | < 0.5 deg |
| Stereo Phase Mismatch | < 0.5 deg |
| Stereo Level Balance (1 kHz) | < 0.2 dB |
| Crosstalk (max gain, 1kHz) | < -115 dB |
| Common Mode Rejection Ratio (max gain, 60 Hz) | > 70 db |
| Tube @ 100% – LINE IN TO LINE OUT | |
| Tube Complement | 12AX7 (2) |
| THD+N (19 dBu, 1 kHz, 20 kHz BW) | -30 dB (3.1%) |
| THD+N (17 dBu, 1 kHz, 20 kHz BW) | -20 dB (1.0%) |
| SNR (min gain, 1 kHz, A-wgt, 20 kHz BW) | 109 dB |
| SNR (max gain, 1 kHz, A-wgt, 20 kHz BW) | 74 dB |
| Solid State @ 100% – LINE IN TO LINE OUT | |
| THD+N (min gain, 1 kHz, 20 kHz BW) | -101 dB (0.0009%) |
| THD+N (max gain, 1 kHz, 20 kHz BW) | -70 dB (0.03%) |
| SNR (min gain, 1 kHz, A-wgt, 20 kHz BW) | 110 dB |
| SNR (max gain, 1 kHz, A-wgt, 20 kHz BW) | 82 dB |
| Low Cut Filter | Type Bessel 2nd Order Corner Frequency 75 Hz Attenuation (20 Hz) -23 dB |
| Pad | Attenuation 15 dB |
| Phase | Phase Shift 180 deg |
| Phantom Power | Phantom Power Current (per jack) 10 mA Voltage 48V ± 1V |
| Compressor | Threshold 10 dBu Compression Ratio 4:1 Fast Attack Time 0.3 ms Fast Release Time 100 ms Slow Attack Time 2.0 ms Slow Release Time 1100 ms |
| Limiter | Threshold 17 dBu (= -3 dBFS) Attack Time 0.075 ms Release Time 100 ms |
| Send/Return | Send Level, Max (bal) 20 dBu Return Level, Max (bal) 20 dBu Send Level, Max (unbal) 14 dBu Return Level, Max (unbal) 20 dBu |
| Analog Meter | Switch, GR Comp. Gain Reduction Switch, Drive Tube Stage Drive Switch, Level Output Level Level, 0 dB VU, Drive Mode 12 dBu Level, 0 dB VU, Output Mode 4 dBu |
| Analog-To-Digital Converter Section | |
| Note | All specifications are typical performance unless otherwise noted. Unless otherwise noted, all specifications are 20 Hz-20 kHz, minimum gain, maximum level, 24 bits, all switches in neutral or off mode, 100% solid state, -1 dBFS output. |
| Microphone Input | |
| THD+N (-1 dBFS) | -100 dB (0.001%) |
| SNR (A-Wt) | 110 dB |
| Dynamic Range (-60 dBFS, A-wt) | 110 dB |
| Frequency Response | +0.1/-0.15 dB |
| Stereo Phase | < 0.3 deg |
| Line Input (Ch 1-4) | |
| THD+N (-1 dBFS) | -100 dB (0.001%) |
| SNR (A-Wt) | 110 dB |
| Dynamic Range (-60 dBFS, A-Wt) | 110 dB |
| Frequency Response | +0.1/-0.15 dB |
| Stereo Phase | < 0.3 deg |
| Line Input (Ch 5-8) | |
| THD+N (-1 dBFS) | -103 dB (0.0007%) |
| SNR (A-Wt) | 117 dB |
| Dynamic Range (-60 dBFS, A-Wt) | 117 dB |
| Frequency Response | ±0.1 dB |
| Stereo Phase | < 0.5 deg |
| 16-Bit Mode | |
| Dither Type | Triangular |
| Sample Resolution | 16 bits |
| THD+N (-1 dBFS, 16 bits) | -93 dB (0.0022%) |
| SNR (A-Wt) | 98 dB |
| Dynamic Range (-60 dBFS, A-Wt) | 98 dB |
| Digital Output Section | |
| Digital Output Formats | AES/EBU 8 channels, 44.1-192kHz, single wire ADAT Optical 44.1-48kHz: Port 1 = channel 1-8 Port 2 = channel 1-8 (duplicate out) 88.2-96Khz (S/MUX™): Port 1 = channel 1-4 Port 2 = channel 5-8 176.4-192kHz (S/MUX™): Port 1 = channel 1-2 Port 2 = channel 3-4 |
| Bit Depths | 24-Bit 16-Bit (dithered) |
| Clock Options | Internal (crystal) 44.1, 48, 88.2, 96, 176.4, 192 kHz Word Clock 44.1, 48, 88.2, 96, 176.4, 192 kHz Lock range ±3% Optional termination (75 ohms) |
| A/D Metering | Bottom segment: Green, -37 dB to -6 dB Top segment: Yellow, -6 dB to -1 dB Top segment: Red, -1 dB to Clip |
| Connector Types | |
| External Connections (rear panel) | 8 x XLR Female Line in, Mic in (channel 1-4) 4 x XLR Male Line out (channel 1-4) 12 x ¼” TRS Female (ch 1-4 send, return, line in 5-8) 2 x Toslink out (ADAT Optical output 1-8) 2 x BNC 75? (Word Clock in, out) 1 x DB-25 (AES/EBU Tascam pin-out, ch 1-8) |
| External Connections (front panel) | 4 x ¼” TRS Female (channel 1-4 Hi-Z in) |
| Mechanical and Power | |
| AC Requirements | 100VAC - 240VAC, 50/60 Hz, auto-switching |
| Maximum Power Consumption | 0.525 A @ 120 VAC (60W) |
| Power Connector | Detachable IEC power cable |
| Dimensions | 2U Rack 19” x 3.5” x 12” (W x H x D) inches 48.2 x 8.9 x 30.5 (W x H x D) cm |
| Weight | 11.5 lbs (5.2 kg) |
More +
Shipping Rate Calculator
Also Popular
© 2025 Dale Pro Audio. All Rights Reserved.
Dale Pro Audio is not responsible for technical inaccuracies, typographical errors, or incomplete or inaccurate content on this site. Prices and specifications subject to change without notice.
