24 bit/96 kHz USB Audio Capture

High performance audio interface in a compact unit.

  • USB
  • FPT


(Oct. 23, 2013)
You can download the Driver Ver.1.0.0 for OS X Mavericks (10.9).

(Oct. 21, 2013)
You can download the Driver Ver.1.0.1 for Windows 8.1 / 8.

(Apr. 6, 2011)
Meet the latest QUAD-CAPTURE with a pair of premium VS Preamps onboard, plus superb 24-bit/192 kHz audio quality, ultra-low latency performance, and more!

High performance audio interface in a compact unit.

EDIROL UA-25, the world standard USB audio interface is capable 24-bit, 96 kHz audio input and output. We’ve put professional-spec audio performance into a compact, solid metal body. Once connected, power is simply taken from the USB bus.


  • - Solid Metal Construction
  • - Variety of Input & Output options
  • - Balanced Input & Output
  • - Two Professional Grade Mic Preamps
  • - Built-in Analog Limiter
  • - Zero-Latency, Direct Monitoring
  • - Powerful Low-Latency Driver Performance with WDM, ASIO2.0, & Core Audio Support
  • - USB Bus-Powered

Solid Metal Construction

The UA-25 hosts Edirol's latest audio technology in a small, durable body for incredibly portable USB audio recording.

Variety of Input & Output options

The UA-25 includes a pair of Neutrik XLR/TRS combo inputs with Phantom power, Hi-Z (Guitar) connection, S/P DIF optical I/O, analog outputs, 1/4" headphone output, and MIDI I/O.

Balanced Input & Output

With an integrated low-noise, wide-range power supply, the UA-25 can be bus-powered with balanced audio inputs & outputs for professional quality.

Two Professional Grade Mic Preamps

The UA-25 is a completely portable recording center with very clean, high-gain microphone preamps & premium analog components perfect for home studio & field recording.

Built-in Analog Limiter

The UA-25 allows you more liberty setting your recording levels with the Built-In Limiter. No more worry about clipping a live recording or losing valuable signal because of brief loud moments.

Zero-Latency, Direct Monitoring

The UA-25 offers a Direct Monitor control on the front panel, allowing you to hear what you're recording onto the computer without listening through the program.

Powerful Low-Latency Driver Performance with WDM, ASIO2.0, & CoreAudio Support

The UA-25 comes with WDM, ASIO2.0, & CoreAudio drivers for low latency with most audio applications. The UA-25 can also use the OS-standard driver, using the ADV switch.

USB Bus-Powered

No AC adaptor required! Just connect one USB cable to your laptop to create a Pro-quality field recorder. Reduce your cables, record anywhere with the UA-25.

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 (24-bit operation is available only when ADVANCE switch = ON)
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: 44.1kHz only

Frequency Response

96 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
1/4 inch TRS phone type: -36 to +4 dBu

Nominal Output Level

Output Jack L, R
1/4 inch TRS phone type: +4 dBu (balanced)
RCA phono type: -2 dBu

Residual Noise Level

Output Jack
-96 dBu (S/N ratio: 105 dB) (input terminated with 1 k ohms,


Digital input/output: Optical type (conforms to IEC60958 consumer format)


Front Panel
Input Jack L, R: XLR type (balanced, phantom power +48 V)
1/4 inch TRS phone type (balanced)
*Input Jack 2: high impedance is supported
Headphones 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

Width (W)
164 mm6-1/2 inches
Depth (D)
133 mm5-1/4 inches
Height (H)
46 mm1-13/16 inches
554 g1 lbs. 4 oz.

0 dBu = 0.775 Vrms

All specifications and appearances are subject to change.


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