Edirol UA 25

euro 259,00

System Requirements


OS: Mac OS 9, 10.2 or later
Computer: Apple Macintosh series with on-board USB port
CPU/Clock: PowerPC G3 400 MHz or higher
Memory(RAM): 256MB or More
Hard Disk: 200 MB of free space


OS: Microsoft® Windows® XP Home Edition/ XP Professional /2000 Professional /Me/98 Second Edition
Computer: Windows® XP Compatible PC
CPU/Clock: Pentium®, Celeron®, or Pentium® compatible processor 600 MHz or higher
Memory(RAM): 256MB or more
Hard Disk: 200 MB of free space

The UA-25 is compact enough to travel anywhere you can take your computer. It is designed using high-grade aluminium for the chassis, which offers two benefits: can withstand hard impacts that are normally associated with travelling or working in the field, and the aluminium is an excellent shield against high-frequency interference from other electrical components. The UA-25 is USB powered, so you never have to plug it into a wall socket, but you can still power condenser microphones with 48V phantom power. UA-25 can output audio at +4dBu from the balanced 1/4” outputs.
The UA-25 includes direct monitor controls that allow you to route audio directly from the inputs to the outputs & the headphone jack, so you can listen with no latency. You can turn direct monitoring on or off, adjust the relative volume of the input signal compared to the audio playing out from your computer, and even set the signal to monitor in MONO (so if you have plugged a microphone into one of the inputs you may still want to hear it in both headphonesor or to identify phase problems between two inputs).

Onboard an analogue compressor too. This gives you a little more discrepancy when setting mic levels, with less chance of clipping. UA-25 is a 24-bit/96kHz audio interface, has MIDI I/O, S/P DIF Optical I/O, and Neutrik XLR/TRS inputs with high-grade microphone preamps.

With ASIO2.0, WDM, MME, and CoreAudio, the UA-25 offers a wide variety of support for both Mac & PC.

Hidden little extras: the UA-25 also has the ability to reroute out-going audio signals back to the input without crossing into the analogue domain. Why might you want to do this? If you are streaming audio from the internet, most applications won’t allow you to record the audio directly. But if you run it out of your sound card & back to an input, you have an audio signal that you route to any recording application you like. The UA-25 allows you to do this without requiring you to make a physical connection with a cable, and without leaving the digital domain.

Main Features

Solid Aluminium Chassis - Portable and Durable
Premium Audio Quality
Wide Variety of I/O Ports
Built-in Analogue Limiter
Zero Latency, Direct Monitoring
USB-Powered Phantom Power Preamps
+4 dBu Output for professional application

Solid Aluminium Chassis - Portable and Durable
All of Edirol's latest audio interface technology is condensed into the compact UA-25, giving the user the highest performance 24-bit/96kHz recording and playback via USB.

Driver Compatibility (WDM, ASIO2.0, and CoreAudio)
The bundled CD-ROM has drivers for WDM (Windows XP/2000)/ASIO2.0 (Windows, Mac OS 9) and CoreAudio (Mac OS X). In addition, you can choose to use either the advanced or OS-standard driver, via the ADV switch. Sound Manager for Audio and OMS/FreeMIDI compatible on Mac OS 9 and Windows98 and Me, as well.

Main Specifications

Number of Audio Record/Playback Channels
Record: 1 pair of stereo
Playback: 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 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

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

Residual Noise Level
Output Jack: -96 dBu (S/N ratio: 105 dB)
(Input terminated with 1 k ohms, OUTPUT VOLUME: max., INPUT MONITOR: min., IHF-A, typ.)

Interface: USB

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” TRS phone type (balanced) *
* Input Jack 2: high impedance is supported
Headphones Jack (Stereo 1/4 inch)

- 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

164 (W) x 133 (D) x 46 (H) mm
6-1/2 (W) x 5-1/4 (D) x 1-13/16 (H) in

Weight: 554 g / 1 lb 4 oz

Owner's Manual
USB cable

Head Office
EDIROL Europe,
Studio 3.4, 114 Power Road,
London W4 5PY
tel: 0870 350 1515 , Fax:0845 117 2002
(Charged at local rate throughout the UK)
tel:+44 20 8747 5949
Fax:+44 20 8747 5948

Viale delle Industrie, 8
20020 Arese (MI)
Tel : 02 93778344 , Fax: 02 93581882

advanced technologic sound magazine
2005 issue 135

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