24Bit/96kHz Audio Capture


Mobile Connectivity with Pro-Studio Extras

Rugged, compact, and feature-filled, the UA-25EX is a portable-interface powerhouse. Ideal for computer-based audio engineers who appreciate mobility, this 24bit/96kHz USB audio interface is equipped with pro-grade microphone preamps, a newly-developed analog compressor/limiter, and ground-lift functionality for studio and stage.

High-Resolution Performance

Don’t let its compact size (or body) fool you — the UA-25EX is a full-featured, professional audio interface with extras you wouldn’t expect in its size and price class. It’s capable of handling audio at 24bit/96kHz resolution, and boasts newly-developed high-end mic preamps, plus proquality balanced audio inputs and outputs, and an integrated low-noise, wide-range power supply.

Analog Compression & Limiting

The UA-25EX features a newly-developed analog compressor with variable attack times and threshold control for smooth capture of vocals or dynamic instruments. The accompanying limiter prevents input clipping from occurring so you’ll never lose those perfect takes.

Pro-Quality Shielding with Ground Lift

With its high-grade aluminum chassis, the UA-25EX can withstand hard impacts, and is shielded against high-frequency interference from other electrical components. Should a ground loop occur, the new ground-lift function eliminates the noise by disconnecting the sleeve pin of the master output from the earth ground.

Bundled Software

Included with the UA-25EX is the Production Plus Pack from Cakewalk by Roland, a feature-rich recording software bundle consisting of SONAR LE, Project 5 LE, and Dimension LE for PC-based recording. The CD-ROM also includes the latest ASIO, WDM, and MME drivers for Windows XP and Vista (32-bit versions), plus CoreAudio drivers for Mac OSX.

Number of Audio Record/Playback Channels
1 pair of stereo
1 pair of stereo
DIGITAL IN SWITCH = OFF: Full duplex (except for 96 kHz setting)
DIGITAL IN SWITCH = ON: Recording only
Signal Processing
PC interface
24 bits (ADVANCE SWITCH=OFF: 16 bits)
AD/DA Conversion
24 bits (linear)
Sampling Frequency
Digital output
44.1/48/96 kHz
Digital input
44.1/48/96 kHz
AD/DA Conversion
44.1/48/96 kHz
* ADVANCE SWITCH=OFF: 44.1 kHz only
Frequency Response
96.0 kHz
20 Hz to 40 kHz (+0 dB/-2 dB)
48.0 kHz
20 Hz to 22 kHz (+0 dB/-1 dB)
44.1 kHz
20 Hz to 20 kHz (+0 dB/-1 dB)
Nominal Input Level
Input Jack L, R (XLR type)
-60 to -20 dBu
Input Jack L, R (1/4 inch TRS phone type)
-36 to +4 dBu
* Maximum Input level: Nominal Input Level + 12 dB
Nominal Output Level
Output Jack L, R (1/4 inch TRS phone type)
+4 dBu (balanced)
Output Jack L, R (RCA phono type)
-2 dBu
* Maximum Output level: Nominal Output Level + 12 dB
Residual Noise Level
Output Jack
-96 dBu (S/N ratio: 105 dB) (input terminated with 1 k Ω, OUTPUT VOLUME: max., INPUT MONITOR: min., IHF-A, typ.)
Mic Preamp
Front Panel
Input Jack L, R: XLR type (balanced, phantom power +48 V), 1/4 inch TRS phone type (balanced)
* Input Jack R: high impedance is supported
Headphone Jack: Stereo 1/4 inch phone type
Rear Panel
Digital Input Connector: Optical type
Digital Output Connector: Optical type
Output Jack L, R: 1/4 inch TRS phone type (balanced), RCA phono type
MIDI Connectors: IN/OUT
USB Connector: B type
Power Supply
USB Bus Power
Current Draw
480 mA
Owner's Manual
USB cable
Size and Weight
164 mm
6-1/2 inches
133 mm
5-1/4 inches
64 mm
2-9/16 inches
0.6 kg
1 lbs. 4 oz.
* 0 dBu = 0.775 Vrms
*The specifications are subject to change without notice.



Updates & Drivers


If you have questions about operating your Roland product, please check our Knowledge Base for answers to the most common questions.
You can also contact our Product Support department by phone or email.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.

Owner's Manuals