Korena
Product detailSKU #1288970926820

Universal Audio4-710d 4-Channel Mic Preamp

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Universal Audio 4-710d 4-Channel Mic Preamp
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Independent shopping perspective

The Korena take

Four channels of Universal Audio's 710 preamp, each blending tube and solid-state paths, with per-channel compression. For studios tracking drums or full bands.

Universal Audio 4-710d 4-Channel Mic Preamp product detail
Product studyUniversal Audio 4-710d 4-Channel Mic Preamp
Universal Audio 4-710d 4-Channel Mic Preamp alternate view
Alternate view

Strong match

Who this is for

  • Tracking drums or a full band live to multitrack
  • Studios wanting tube color without swapping preamps between takes
  • Sources needing gentle compression on the way in

Consider the trade-offs

When to look elsewhere

  • Solo songwriters who only ever record one source at a time
  • Anyone needing an audio interface — this has no converters or USB
  • Budget-conscious home setups where a single channel would do

What matters in use

The specifications, translated

Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Universal Audio 4-710d 4-Channel Mic Preamp construction detail

Detail 01

56dB gain range, up to 70dB max

Enough headroom for ribbons and low-output dynamics on quiet sources without an inline booster.

Detail 02

-127dBu equivalent input noise at 56dB gain

The preamp stays quiet at high gain, so distant or soft sources do not arrive with hiss.

Detail 03

2.2M ohm Hi-Z input

High enough to load a passive guitar or bass pickup without dulling the top end.

Detail 04

4:1 compression with fast and slow attack

0.3ms fast attack catches drum transients; 2.0ms slow lets the stick hit through before clamping.

Detail 05

75Hz corner frequency, -23dB at 20Hz

The low-cut removes rumble and mic-stand thump while leaving kick and bass fundamentals intact.

Detail 06

600 ohm balanced output

Drives long cable runs to a converter or console without level loss.

Final check

Know before you order

  1. 01No converters or USB — you still need an interface with line inputs
  2. 02Rack space and balanced XLR or TRS cables for four channels
  3. 03Phantom power is 10mA per jack; check condensers that draw more

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01Can I plug this straight into my computer?

No. It outputs analog line level. You need an audio interface or converter with line inputs to get the signal into a DAW.

02Does it have phantom power for condenser mics?

Yes, 48V at 10mA per input jack.

03Can I plug a bass or guitar in directly?

Yes. The 2.2M ohm Hi-Z input takes an instrument cable directly from a passive or active pickup.

04Is the compressor adjustable?

It runs a fixed 4:1 ratio with a 10dBu threshold. You choose fast attack and release or slow, not arbitrary values.

Reference

Full specifications

The complete catalog record, organized around the decisions musicians make when comparing gear.

3 detailsSound
Frequency Response
±0.1dB
Frequency Response 20hz 20khz
+0.1/-0.15dB
Corner Frequency
75Hz
1 detailsBody & build
Type
Bessel 2nd Order
8 detailsConnections & power
Input Impedance Bal
2kÎ
Input Impedance Hi Z
2.2MÎ
Equiv Input Noise 150 56db Gain
-127dBu
Max Input Level Bal
6.7dBu
Max Output Level Bal
20dBu
Phantom Power Current per Jack
10 mA
Output Impedance Bal
600 Î
Voltage
48V ±1V
15 detailsOther
Note
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.
Fast Attack Time
0.3ms
Attenuation
15dB
Snr A Wt
117dB
Threshold
10dBu
Attenuation 20hz
-23dB
Slow Attack Time
2.0ms
Slow Release Time
1100ms
Compression Ratio
4:1
Dynamic Range 60dbfs A Wt
117dB
Min Gain
14dB
Gain Range
56dB
Thd N 1dbfs
-103dB (0.0007%)
Fast Release Time
100ms
Max Gain
70dB

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