Universal Audio 4-710d Four-Channel Tone-Blending Mic Preamp with Dynamics
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Universal Audio 4-710d Four-Channel Tone-Blending Mic Preamp with Dynamics

SKU: UA4710DD MFR: 4710D
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Key Features

  • Blend tube warmth with solid-state precision using this versatile mic preamp.
  • Achieve pristine sound with low noise, ideal for critical studio recording sessions.
  • Shape your tone easily using the preamp's dynamic control for polished mixes.
  • Experience a wide gain range, perfect for vocals, guitars, and diverse instruments.
  • Integrate seamlessly with balanced I/O connectivity for modern studio setups.
  • Rely on robust build quality ensuring lasting performance for professional use.
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Universal Audio 4-710d Specifications

  • Gain Range

    Microphone Preamplifier To Line Out: 56 dB
    Line In to Line Out: 56 dB

  • Min Gain

    Microphone Preamplifier To Line Out: 14 dB
    Line In to Line Out: -7 dB

  • Max Gain

    Microphone Preamplifier To Line Out: 70 dB
    Line In to Line Out: 49 dB

  • Max Input Level (bal)

    Microphone Preamplifier To Line Out: 6.7 dBu
    Line In to Line Out: 26 dBu

  • Max Output Level (bal)

    Microphone Preamplifier To Line Out: 20 dBu
    Line In to Line Out: 20 dBu

  • Max Output Level (unbal)

    Microphone Preamplifier To Line Out: 14 dBu
    Line In to Line Out: 20 dBu

  • Input Impedance (bal)

    Microphone Preamplifier To Line Out: 2 kOhms
    Line In to Line Out: 10 kOhms

  • Input Impedance (Hi-Z)

    Microphone Preamplifier To Line Out: 2.2MOhms
    Line In to Line Out: 5 kOhms

  • Output Impedance (bal)

    Microphone Preamplifier To Line Out: 600 Ohms
    Line In to Line Out: 600 Ohms

  • Output Impedance (unbal)

    Microphone Preamplifier To Line Out: 300 Ohms
    Line In to Line Out: 300 Ohms

  • Equiv. Input Noise (150Ohms, 56 dB gain)

    Microphone Preamplifier To Line Out: -127dBu

  • Frequency Response (20Hz-20kHz)

    Microphone Preamplifier To Line Out: +0.1/-0.15 dB
    Line In to Line Out: +0.1/-0.15 dB

  • Phase

    Mic In to Line Out, 20 kHz: < 0.5 deg
    Line In to Line Out, 20 kHz: < 0.5 deg

  • Stereo Phase Mismatch

    Microphone Preamplifier To Line Out: < 0.6 deg
    Line In to Line Out: < 0.5 deg

  • Stereo Level Balance (1 kHz)

    Microphone Preamplifier To Line Out: < 0.01 dB
    Line In to Line Out: < 0.2 deg

  • Crosstalk (max gain, 1kHz)

    Microphone Preamplifier To Line Out: <-115 dB
    Line In to Line Out: <-115 dB

  • Common Mode Rejection Ratio(max gain)

    Microphone Preamplifier To Line Out: > 62 dB
    Line In to Line Out: > 70 dB

  • Tube Complement

    12AX7 (2)

  • THD+N (19 dBu, 1 kHz, 20 kHz BW)

    Tube: -30 dB (3.1%)

  • THD+N (17 dBu, 1 kHz, 20 kHz BW)

    Tube: -20 dB (1.0%)

  • SNR (min gain, 1 kHz, A-wgt, 20 kHz BW)

    Tube: 109 dB
    Solid State: 110 dB

  • SNR (max gain, 1 kHz, A-wgt, 20 kHz BW)

    Tube: 74 dB
    Solid State: 82 dB

  • THD+N (min gain, 1 kHz, 20 kHz BW)

    Solid State: -101 dB (0.0009%)

  • THD+N (max gain, 1 kHz, 20 kHz BW)

    Solid State: -70 dB (0.03%)

  • Type

    Bessel 2nd Order

  • Corner Frequency

    75 Hz

  • Low Cut Filter: Attenuation (20 Hz)

    -23 dB

  • Pad Attenuation (20 Hz)

    15 dB

  • Phase Shift

    180 deg.

  • Phantom Power Current (per jack)

    10 mA

  • Voltage

    48 V +/- 1 V

  • Compressor: Threshold

    10 dBu

  • Compressor: Compression Ratio

    4:01

  • Compressor: Fast Attack Time

    0.3 ms

  • Compressor: Fast Release Time

    100 ms

  • Compressor: Slow Attack Time

    2.0 ms

  • Compressor: Slow Release Time

    1100 ms

  • Limiter: Threshold

    17dBu(=-3 dBFS)

  • Limiter: Attack Time

    0.075 ms

  • Limiter: Release Time

    100 ms

  • Send/Return: Send Level, Max (bal)

    20 dBu

  • Send/Return: Return Level, Max (bal)

    20 dBu

  • Send/Return: Send Level, Max (unbal)

    14 dBu

  • Send/Return: Return Level, Max (unbal)

    20 dBu

  • Analog Meter: Switch, GR

    Comp. Gain Reduction

  • Analog Meter: Switch, Drive

    Tube Stage Drive

  • Analog Meter: Switch, Level

    Output Level

  • Analog Meter: Level, 0 dB VU, Drive Mode

    12 dBu

  • Analog Meter: Level, 0dB VU, Output Mode

    4 dBu

  • THD+N (-1 dBFS)

    Microphone Input: -100 dB (0.001%)
    Line Input (Ch 1- 4): -100 dB (0.001%)
    Line Input (Ch 5-8): -103 dB (0.0007%)
    16 Bit Mode: -93 dB (0.0022%)

  • SNR (A-Wt)

    Microphone Input: 110 dB
    Line Input (Ch 1- 4): 110 dB
    Line Input (Ch 5-8): 117 dB
    16-Bit Mode: 98 dB

  • Dynamic Range (-60 dBFS, A-wt)

    Microphone Input: 110 dB
    Line Input (Ch 1- 4): 110 dB
    Line Input (Ch 5-8): 117 dB
    16-Bit Mode: 98 dB

  • Frequency Response

    Microphone Input: +0.1/-0.15 dB
    Line Input (Ch 1- 4): +0.1/-0.15 dB
    Line Input (Ch 5-8): +/-0.1 dB

  • Stereo Phase

    Microphone Input: < 0.3 deg
    Line Input (Ch 1- 4): < 0.3 deg
    Line Input (Ch 5-8): < 0.5 deg

  • 16-Bit Mode: Dither Type

    Triangular

  • 16-Bit Mode: Sample Resolution

    16 bits

  • 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

  • External Connections (rear panel)

    8x XLR Female Line in, Mic in (channel 1-4)
    4x XLR Male Line out (channel 1-4)
    12x 1/4" TRS Female (ch 1-4 send, return, line in 5-8)
    2x Toslink out (ADAT Optical output 1-8)
    2x BNC 75 Ohms (Word Clock in, out)
    1x DB-25 (AES/EBU Tascam pin-out, ch 1-8)

  • External Connections (front panel)

    4x 1/4" TRS Female (Channel 1-4 Hi-Z in)

  • AC Requirements

    100-240V AC, 50/60 Hz, auto-switching

  • Maximum Power Consumption

    0.525 A at 120 VAC (60W)

  • Power Connector

    Detachable IEC power cable

  • Dimensions (W x H x D)

    2U Rack: 19 x 3.5 x 12" (48.26 x 8.89 x 20.48cm)

  • Weight

    11.5lbs (5.21kg)

  • UPC Code

    819937000621

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About Universal Audio 4-710d

Because the Universal Audio 4-710d Four-Channel Tone-Blending Mic Preamp with Dynamics is a high-quality, four-channel microphone and line preamplifier, it is an ideal choice for professionals seeking superior sound quality. This preamp boasts unique tube and solid-state tone blending capabilities, making it perfectly suited for a diverse range of microphone and instrument sources.

This versatile, multi-channel preamp is equipped with selectable 1176-style compression circuitry on each channel, enhancing the richness and depth of your audio output. Additionally, it features four extra line inputs, feeding into eight channels of pristine analog-to-digital conversion, ensuring your sound remains crisp and clear.

At the heart of the 4-710d are four channels of tone-blending "Twin-Finity" mic preamps. These preamps come with a true-bypass 1176-style compression, including specially tuned "fast" and "slow" settings, allowing you to customize your sound to your exact specifications.

Each of the four mic preamp channels provides continuously variable phase-aligned tone, enabling a seamless blend between a 100% tube and 100% solid-state signal path. This feature ensures the utmost flexibility and control over your sound.

For added convenience, send and return jacks are included for external processing or signal access. This makes the Universal Audio 4-710d Four-Channel Tone-Blending Mic Preamp with Dynamics a comprehensive solution for all your audio recording and processing needs.

Universal Audio 4-710d Features

  • 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
  • JFET Direct Input with 2.2M Ohms 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
  • Eight channels of high quality 24-bit A/D conversion:
  • Selectable sample rates up to 192kHz
  • 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 Ohms BNC work clock I/O
  • Digital outputs anti-pop protection on power-up
  • Universal voltage internal power supply
  • Heavy-duty metal construction, two-space rack unit

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Product Documents

User Manual

Key Features

  • Blend tube warmth with solid-state precision using this versatile mic preamp.
  • Achieve pristine sound with low noise, ideal for critical studio recording sessions.
  • Shape your tone easily using the preamp's dynamic control for polished mixes.
  • Experience a wide gain range, perfect for vocals, guitars, and diverse instruments.
  • Integrate seamlessly with balanced I/O connectivity for modern studio setups.
  • Rely on robust build quality ensuring lasting performance for professional use.

What's in the box:

  • Universal Audio 4-710d Four-Channel Tone-Blending Mic Preamp with Dynamics
  • Set of 4x Rack Mounting Screws with Washers
  • User Manual
  • Tip In Sheet
  • IEC Power Cable
  • Warranty Registration Card
  • UA Full Line Catalog
  • Universal Audio 1 Year Parts and Labor Limited Warranty

Articles & Videos

Universal Audio: Evolution of Recording Technology

Universal Audio: Evolution of Recording Technology