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Home » Computer Music » Audio Interfaces » USB » Edirol UA-25

Edirol UA-25

Dolphin id:
4001
Product SKU:
UA-25

This product is currently not available for purchase.

Mobile USB Audio Interface.

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The UA-25 is a powerful USB Audio/MIDI interface designed to offer premium sound quality, rugged durability, and complete portability for computer-based audio engineers. The UA-25 is compact enough to travel anywhere you can take your computer. The UA-25 is constructed of high-grade aluminum for the chassis; it can withstand hard impacts that are normally associated with traveling or working in the field, and the aluminum 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 it can still power condenser microphones with its 48V phantom power. The seasoned audio professional will love the UA-25 for its ability to output audio at +4dBu from the balanced 1/4" outputs, making it the best portable audio interface to shuttle between the field and the studio.

  • Solid aluminum chassis — portable and durable
  • Premium audio quality
  • Wide variety of I/O
  • Built-in analog limiter
  • Zero-latency direct monitoring
  • USB-powered phantom powered preamps
  • +4 dBu output for pro applications
  • Supports ASIO 2.0, WDM, MME, and Mac OS X CoreAudio

Solid Aluminum 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.

Premium Audio Quality

The UA-25 uses powerful analog electronics coupled with well-matched A/D & D/A converters for superior audio fidelity.

Wide Variety of I/O Ports

Wide range of input and output ports in a compact case. A pair of Neutrik XLR/TRS combo jacks with Phantom power, Hi-Z port for guitar direct connection, S/PDIF optical I/O ports and MIDI IN/OUT ports.

Balanced I/O Ports

The UA-25 generates low-noise and has a wide-range power supply all via USB. Thanks to this, the UA-25 gives +4 dBu balanced professional audio input and output connections.

Two High-Quality Mic Preamps

Includes a pair of high-quality microphone preamps using premium analog components. It provides a clean recording environment to give a perfect recording.

Built-in Analog Limiter

Reduce sudden overloaded sounds or popping noises in your recordings. You can often get overloaded levels while recording on the fly. With this switch set, you can still achieve a high-quality sound while retaining a wide dynamic range. The side diagram shows the Limiter characteristics.

Zero-Latency Direct Monitoring

The UA-25 provides ultra low latency with maximum performance from popular music software such as Sonar, Logic, and Cubase. You can control Direct Monitoring from the front panel, not only for ASIO 2.0-compatible applications but also for others. Ideal for soft synths controlled from MIDI devices.

Driver Compatibility (WDM, ASIO 2.0, and CoreAudio)

The bundled CD-ROM has drivers for WDM (Windows XP/2000)/ASIO 2.0 (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.

USB Bus Powered

Just connect one USB cable. No need for an AC adaptor. In combination with your laptop, you get a quality field recorder. The UA-25 is the audio interface for mobile users — ideal for the traveling musician.

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
    • nput 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)
  • Connectors
    • 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
      • Dimensions:
        • 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

UK mainland standard delivery £5.99.
More details on UK deliveries.
More details on International deliveries.

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Edirol UA-25 Reviews

8/10

UA-25

— Drew May 22, 2008

This is a great audio interface. Currently im using it in my room and getting great sound quality from it.

9/10

Edirol UA-25

— mike taylor May 16, 2008

Great unit, usb instead of firewire, no problems with speed, excellent sound quality. Easy to set up (2 or 3mins and your away) multiple sample options so it will match most programs. I use it for overdubs in Sony Vegas Pro8 and it is clean and quite. Headphone output...nice. You can adjust the latency to stop the echo so you can work in real time ...and it goes precisely on the track. DOWNSIDE no MONO input for the microphone to utilise both channels, so more post production work or use a splitter (use a splitter less hassel)!! highly recomended almost a full 10!

Show all reviews »

8/10

Edirol UA-25

— Julianne Shawe April 8, 2008

Excellent sturdy interface, its great for connecting midi controllers, keyboards etc. You can connect your guitar direct, and control the input volume very precisely with the firm knob controls.

The manual is very easy to read and understand, I got this up and running very quickly, by connecting the USB lead to my Macbook. After installing the drivers, within a few seconds of connecting, macbook recognised this and allowed me to use it with Garageband and Logic. I now have it running with all sound outputted through the line-out of the Edirol into computer speakers, using a RCA to 1/8" socket.

The direct monitor is also an excellent feature, to listen to whats being inputted into the edirol.

This product has definitely given me confidence in the edirol brand, and I'm already considering purchasing the UA 101.

Only one slight fault i've experienced, is the odd time I plug this into my macbook, there is a buzzing and latency in the input, but this is instantly fixed by changing to a different USB port on my macbook.

9/10

the ua-25

— Tom[djep of www.sycoradio.com] April 6, 2008

is yet another piece of my veteran kit!

its a perfect piece of kit for anyone who wants to record and produce things like vox over backing tracks or ambient stereo recordings. i have even used this to produce singer/songwriters with guitars, vox and other instruments... so pretty much anything you only really need 2 mics or less ;)

i've used this with both my macbook and my PC and it's worked really nicely! i have found a couple of latency problems with logic 8 express with live monitoring though i have a feeling that is only because i installed it very quickly and never really played with any settings...

the only reason im ever going to discard this little unit is due to needing to upgrade to something with more channels heh heh ;)

i've never used the digital input/output on it though so i couldn't say what it's like there...

overall i love it and would recommend to any aspiring producer :)

9/10

Fantastic piece of kit

— Harry February 11, 2008

Within ten minutes of getting this out of the box I had my bass guitar and ancient, non-USB Yamaha keyboard plugged into Cakewalk and ready to use. I was genuinely shocked how easy it was to set up.

The (Windows XP) driver installation was very easy and everything sounds ten times better than the cheap built-in sound card I've been relying on for years. If you've ever put a CD in a drive and managed to click 'install' without any problems then you shouldn't have to much hassle.

If I had to have a tiny, tiny complaint, it would be the max volume of the thing, which seems a little quiet even when turned all the way up. I mean, it's loud enough, but I've just bought a new pair of headphones recently so I wanted to be deafened.

Despite the minor volume problem, however, it is WELL worth the money.

3/10

UA25 Setup

— Brendan Jewell November 28, 2007

I bought this product with a AKG 2000B mic to improve my vocal recording.
The setup instructions are a mess and I had a hard time configuring the Edirol.
I did not find the quality to be much better than the S Blaster card in my computer and as I had automatic recognition of SB Audigy to any recording software I threw the UA 25 on to the shelf and there it lies.

7/10

ua-25

— matthew venn April 23, 2007

works first time with Linux and Mac. The usual pain with windows.

Got down to 8ms full duplex latency with linux, and others have got down to 4ms.

I notice a hum about 110hz with phantom power, though I haven\'t isolated the problem. It may only happen when my laptop is plugged into the mains.

I bought this as a rugged USB recording interface, and as such it performs well.

9/10

Great little unit

— Chris Ward June 12, 2006

I've had this sound card for about 5 months now an have to say its fantastic. Really great value for money and feels very solid and well built. Its been used on a long series of gigs and has survived everthing I have throw at it (including accidently dropping it from a very high hight!). If your after a cost effective high quality USB powered sound card you have just found it. I can't rate it highly enough.

7/10

Edirol UA25

— Paul Fischer April 23, 2006

It does everything it says it does and does them well. A good buy and it's been reliable and noise free.
Two irritations:
1. The setup and use of soundcard instructions are overly complicated.
2. All my mics come out very bottom-end heavy via the unit, I have to roll off plenty to get a crisp sound. It gets in the way.

8/10

Edirol UA25

— Jonny November 4, 2005

I have been using the UA-25 for several months now and have to admit to being a bit of a fan. The unit is small, well built, portable, bus powered and has a nice suite of features. The sound quality of the XLR balanced inputs is very natural, clean, low noise and uncoloured.

Admittedly the mic preamps are not the quietest I have ever used, but unless you have a super low noise transformer coupled mic the odds are they will be more than adequate for the purpose.

Zero latency monitoring, including mono sum, is very simple to use and great when tracking guitars and vocals using a Sequencer such as Sonar.

The limiter is really not that useful as it is fixed at a 2:1 compression ratio with a threshold of -12dB, so it might be useful for supressing the occasional transient but will not replace a decent outboard compressor.

The drivers for XP are absolutely rock solid and stable, I have had no issues whatsoever with the v1.0.0 drivers shipped with the unit, in both WDM and ASIO. You can set latency as low as 3ms with no stuttering or dropouts, which is approaching the limits of a USB device, due to the buffer size inherent in the USB spec.

Overall a great sounding, versatile and very good value for money. Ideal for recording on the move with a decent laptop.

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