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E-MU 0404 PCI-E audio interface review

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Features 8/10

This audio system offers:

  • 24-bit/192kHz converters: 111dB SNR A/D, 116dB SNR D/A, 0.001% THD+N
  • Two mono 1/4" analog inputs
  • Two mono 1/4" analog outputs
  • Optical S/PDIF I/O
  • Coaxial S/PDIF I/O
  • MIDI I/O
  • Built-in DSP with zero-latency monitoring with effects

Line inputs aren't suited for guitars with passive pickups and instruments with active pickups offer too weak signals to drive them and that's why an active DI box is a must here. WAVES/PRS GTR3 interface works well with its balanced output set to line level.

You can't really complain given its quality and price. Plugging instruments and microphones, however, requires additional external hardware.

Sound quality 9.9/10

0404 PCIE sounds incredible. There's no way to compare this audio interface to any USB audio interface that I've come across. It gives music deepnes, space and makes your heart go faster and it sends shivers go down your spine. The sound is surprisingly dynamic and brilliant in higher frequency ranges, lows are tight, clear and still pleasantly round.

Remember that tune that you really loved in the past and you don't know what happened but you don't feel that way anymore? Listen to it on 0404 PCIE.

Round trip latency, driver performance

Lowest round trip latency is 6.2ms at ASIO buffer size of 88 samples and sample rate of 44.1kHz. This is really great and it surely can compete with far more expensive interfaces. Increasing sample rate all the way up reduces the latency further to approx. 5ms. It takes audio 2ms to go through 0404 PCIE with hardware direct monitoring feature.

Update (June 7th, 2012)

There's a small latency drift of maximum 7 samples @ 44.1kHz (0.1587ms). Driver performance is acceptable - in a session with two tracks loaded with amp sims and IR cabs there was only occasional popping at the lowest buffer size on an i3-2100 based machine running under Windows 7 32-bit.


E-MU 0404 PCIE ASIO settings window


E-MU 0404 PCIE simple loopback recording at lowest buffer size (88 samples) @ 44.1kHz


The built-in DSP is capable of sophisticated mixing, routing, direct monitoring and adding effects. It's possible, for instance, to rout any input source to an ASIO channel or ASIO output to WDM input. Offered effects include EQs, reverb, delay, chorus, distortion, guitar speaker simulator. Guitarists won't be impressed by their level of realism but they should like the possibility to record dry while rehearsing through these effects with a latency of only 2ms. Every effect is processed by the DSP, it's also possible to use E-MU DSP accelerated effects in any DAW but it doesn't seem to work on Vista/7 at the moment.

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E-MU 0404 PCIE PatchMix DSP main (left) and FX (right) windows

Ease of use 8.5/10

PatchMix DSP can be probably confusing to some users due to the fact that it offers a lot. It's not that difficult anyway, it comes with many templates and you can save your sessions and even channel FX chains. It's a lot like any DAW software. It's not rocket science, but reading the manual might be a good idea.

Price 10/10

Great price for the value, it costs around 90 euro new.


pic Exceptional sound quality
pic Extremely low actual latency
pic Built-in DSP/hardware mixer
pic Bundled software
pic Price


pic Basic I/O - no headphone out, no mic/instrument preamps

E-MU 0404 PCIE on http://www.creative.com/emu/

Related articles:

Technical specification


  • Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192kHz from internal crystal or externally supplied clock (no sample rate conversion)
  • Bit Depths: 24-bit I/O, 32-bit processing
  • PCIe Specification:
    • PCIe Base Specification 1.1 compliant
    • Form Factor: Universal-keyed PCIe x1 Card
    • 3.3V I/O
    • PCIe Bus Mastering Subsystem reduces CPU Usage
  • E-MU E-DSP: 32-bit DSP with 67-bit accumulator (double precision w/ 3 headroom bits)
  • Processing: Hardware-accelerated, 32 channel mixing, and multi-effects processing
  • Hardware monitoring: Zero-latency direct hardware monitoring w/effects
  • Drivers: ASIO2, WDM/MME/DirectSound, and 64-bit Drivers
  • Anti-Pop speaker protection: Minimizes noise during power on/off
  • Ultra-low jitter clock subsystem: < 1ns in PLL mode (44.1kHz, Opt. S/PDIF Sync)

Analog Line Inputs (2)

  • Type: DC-coupled, low-noise input circuitry
  • A/D converter: PCM1804
  • OpAmp: NJM2068
  • Level: -10dBV nominal, 6dBV max (unbalanced)
  • Frequency Response (20Hz-20kHz): +0.20/-.10dB
  • Dynamic Range (1kHz, A-weighted): 111dB
  • Signal-to-Noise Ratio (A-weighted): 111dB
  • THD+N (1kHz at -1dBFS): -100dB (.001%)
  • Stereo Crosstalk (1kHz at -1dBFS): < -120dB

Analog Line Outputs (2)

  • Type: Low-pass, 3-pole low-pass differential filter
  • D/A converter: AK4396
  • Level: -10dBV nominal, 6dBV max (unbalanced)
  • Frequency Response (20Hz - 20kHz): 0.05/-.010dB
  • Dynamic Range (1kHz, A-weighted): 116dB
  • Signal-to-Noise Ratio (A-weighted): 116dB
  • THD+N (1kHz at -1dBFS): -100dB (.001%)
  • Stereo Crosstalk (1kHz at -1dBFS): < -109dB

Digital I/O

  • S/PDIF:
    • 2 in/2 out optical or coaxial (transformer coupled)
    • AES/EBU or S/PDIF format (software selectable)
  • MIDI:
    • 1 in, 1 out


  • Internal crystal sync: 44.1, 48, 88.2, 96, 176.4, 192kHz
  • External sample rate sync: -S/PDIF (opt. or coax 44.1 - 96kHz)
  • SMPTE/LTC/MTC (via optional Sync Daughtercard):
    • 24, 25, 30 drop-frame, 30 non-drop
    • SMPTE to MTC, MTC to SMPTE Conversion
    • SMPTE Striping
    • Flywheel/Jam/Regenerate
  • S/PDIF:
    • 2 in/2 out optical or coaxial (transformer coupled)
    • AES/EBU or S/PDIF format (software selectable)

Retail Box Contents

  • E-MU 0404 PCIe Card
  • E-MU Digital Audio System CD-ROM
  • Microsoft® Windows® XP, Windows Vista®, Vista x64 Drivers
  • E-MU PatchMix DSP
  • E-MU E-DSP Effects Library - Owner's Manual and Tutorials
  • Analog I/O Cable Harness
  • Digital I/O Cable Harness

Minimum System Requirements

  • Intel® or AMD® processor - 1 GHz or faster
  • Intel, AMD or 100% compatible motherboard & chipset
  • Microsoft® Windows® XP (SP 3), Windows XP x64, Windows Vista® (SP1 or higher), Vista x64
  • 256MB System RAM
  • 900MB of free hard disk space for full installation
  • PCIe x1 Compliant slot for E-MU 1010 PCIe card (also compatible with x4, x8 or x16 PCIe slots)
  • CD-ROM/CD-RW or DVD-ROM drive required for software installation
  • XVGA Video (1024 X 768)

Source - E-MU 0404 PCIE product page on www.creative.com/emu

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