Universal Audio 4-710D 4-Channel Microphone Preamp

Add 4 channels of Twin-Finity mic preamps to your recording studio rack! The 4-710D's hybrid signal path lets you blend solid-state clarity and tube warmth.
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.

Learn more with this video from Universal Audio:


Features:

- Four TEC Award-winning 710 Twin-Finity microphone/line preamps
- Dual-path 285-volt Class-A tube and trans impedance solid-state preamps
- Phase-aligned tone-blending of tube and solid-state circuits, creamy to crunchy
- 1176-style compression circuit per preamp channel
- 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)
- 1-year Limited Warranty

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 read more or signal access.

The eight analog inputs are digitized via ultra-high quality 24-bit A/D converters at selectable sample rates up to 192 kHz. Digital output is available via dual ADAT lightpipe or AES/EBU DB-25 connectors, facilitating integration with most popular audio interfaces.
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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 2.2MOhm 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 ohms BNC work clock I/O
- Digital outputs anti-pop protection on power-up

Other specs:
o Universal voltage internal power supply
o Heavy-duty metal construction, two-space rack unit
o One year warranty including parts and labor
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 17.25 lbs
Shipping Dimensions: 23 x 17 x 8 in
Manufacturer Part Number (MPN): 4-710D
If you have additional warranty questions, please contact the manufacturer at 831-440-1176
(3 ratings)
Submitted November 28, 2011 by a customer from gmail.com
"It could have been a nice addition to the studio if it wasn't for the terrible quality control of these units."
Verified Customer zZounds has verified that this reviewer made a purchase from us.
See above.
Sound
Sound was good. Very clean.
Features
The tube blend feature is nice. It added fullness, maybe a touch boomy on the 100-200Hz range. We tried it on acoustics and vocals. Many cool output and insert possibilities.
Ease of Use
After a little tweaking you can get some decent tones.
Quality
We tried three units!! From noisy inserts, to wacky input levels between channels and terrible gain stages like moving the knob a hair and the gain would jump up.
Value
WIth these quality control issues for a 2000 dollar unit I can not recommend it. And I had high hopes for it because Universal Audio makes great products. Very disappointed.
Manufacturer Support
I just returned it to Zzounds. I lost a month over these three attempts. Gotta give kudos to Zzounds with the Returns department. They were prompt and no hassle.
The Wow Factor
See above.
Musical Background:
Over 25 years. Performer, Guitar Instructor, Recording Engineer.
Musical Style:
Rock, Metal, Fusion
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