E-MU Systems 0202 USB 2.0 PC Audio Interface

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BillD
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E-MU Systems 0202 USB 2.0 PC Audio Interface

Post by BillD » Sat Feb 16, 2008 2:47 pm

As some of you know, I have been digitizing my vinyl record collection as a project. Not only is it something for posterity, it is also very enjoyable, in that I get to hear all those albums I haven't played in years. Most of my vinyl is from the sixties and seventies (a few eighties).

In looking for ways to accomplish my task, I immediately ruled out using the sound circuits on my motherboard. Even just playing something off of the internet over crappy headphones, it sounded like crap. Moreover, I wanted to later hook up an amplifier to my system and use the software version of the Squeezebox/Transporter in my office for music.

It took me awhile, but I finally settled on the E-MU 0202. It is a USB device that will bypass the cheap ADCs on your system (I had no separate sound card). It has good ADCs and DACs (24-bit/192kHz), takes balanced inputs (if you are running out of a pre-amp that has them) and provides unbalanced outputs (which suits the amp I want to use just fine). Furthermore, it sports a headphone amp!

I've been using it to digitize my vinyl collection with good results. Once that is finished, I will run it as computer output to a small sub and a M-400 (through the sub) in my office.

Here are the features:

E-MU's new 0202 USB 2.0 Audio Interface is the ultimate portable USB audio interface for PC, offering pristine 24-bit/192kHz recording and playback, direct monitoring and a host of professional features in a compact, USB bus-powered package. The 0202 USB sets a new standard in portable USB audio, providing users with two Class-A preamps that can be run independently or in stereo to amplify guitars, keyboards or microphones, with individual ground lift switches for optimal audio performance.

The E-MU 0202 USB 2.0 features:

Premium 24-bit/192kHz A/D and D/A converters (A/D: 113dB SNR, D/A: 112dB SNR) deliver unmatched USB audio fidelity - gold-plated connectors for pristine audio quality
Ultra-low noise Mic/Hi-Z/Line preamplifiers with ground lift switches enable you to plug microphones, keyboards and guitars straight into your computer with professional results (XLR, 1/4" TRS, and 1/8" 5V condenser mic input)
Ultra-low latency USB 2.0 drivers offer accurate timing and playback of your recorded audio and software instruments
Hardware zero-latency direct monitoring (mono/stereo) allows you to record and overdub with no annoying delay
Plug-and-play operation with hands-on control of all major functions like direct monitoring level, headphone level, preamplifier gain and more
Compatibility with most popular audio/sequencer applications - (Windows XP/x64: ASIO2 and WDM; Macintosh OS X: Apple CoreAudio)

I/O Configuration:

Class-A Ultra-low Noise Mic/Hi-Z/Line Preamp XLR, 1/4" TRS and 1/8" Inputs (113dB SNR)
Class-A Hi-Z/Line Preamp 1/4" Input (113dB SNR)
Two 1/4" Outputs (112dB SNR)
1/8" Stereo Speaker Output (112dB SNR)
Stereo Headphone Output (108dB SNR)

Technical Specifications

General

Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192kHz from internal crystal (no sample rate conversion)*
Bit Depth: 24-bit I/O, 32-bit processing
USB 2.0 Hi-Speed

- Full 24-bit resolution at all sample rates
- Stereo in, stereo out at all sample rates
Zero-latency direct hardware monitoring (disabled at 176.4-192kHz)
Windows drivers: ASIO2 and WDM
Macintosh driver: Apple CoreAudio
Anti-Pop speaker protection minimizes noise during power on/off
Ultra-low jitter clock subsystem: < 100ps RMS

Combo Preamplifiers (2)

Type:

- (1) Ultra-low noise combo preamplifier with Mic/Hi-Z/line inputs
- (1) Combo preamplifier with Hi-Z/line balanced input
A/D converter: AK5385
Max Level: +6.5dBV bal/unbal (+8.7 dBu)
Frequency Response (min gain, 20Hz-20kHz): +0.0/-0.07dB
Dynamic Range (A-weighted, 1kHz, min gain): 113dB
Signal-to-Noise Ratio (A-weighted, min gain): 113dB
THD+N (1kHz at - 1dBFS, min gain): -103dB (.0007%)
Ultra-low noise preamplifier (Mic/Hi-Z/line inputs)

- Input Impedance: 1.5Kohm
- EIN (20Hz-20kHz, 150ohm, unweighted): -127dBu
Combo preamplifier with Hi-Z/line balanced input

- Input Impedance: 1Mohm

Analog Line Outputs (2)

Type: unbalanced, AC-coupled, 2-pole low-pass differential filter
D/A converter: CS4392
Max Level: 6.7 dBV (unbalanced)
Frequency Response (20Hz - 20kHz): 0.00/-0.01dB
Dynamic Range (1kHz, A-weighted): 111dB
Signal-to-Noise Ratio (A-weighted): 112dB
THD+N (1kHz at -1dBFS): -98dB (.0013%)
Stereo Crosstalk (1kHz at -1dBFS): <-120dB

Headphone Amplifier

Type: Class-A power amplifier
D/A converter: CS4392 (shared with Line Out)
Gain Range: 60dB
Maximum Output Power: 16mW
Output Impedance: 22ohms
Frequency Response (20Hz-20kHz): +0.02/-0.08dB
Dynamic Range (A-weighted): 110dB
Signal-to-Noise Ratio (A-weighted): 108dB
THD+N (1kHz, max gain): 300ohm load: -98dB (.0013%)
Stereo Crosstalk (1kHz at -1dBFS, 300 ohm load): <-91dB

Synchronization

Internal crystal sync at 44.1, 48, 88.2, 96, 176.4, 192kHz

The best part is that it's less than $100 on Amazon.com
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer

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carversound
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Post by carversound » Sat Feb 16, 2008 3:13 pm

CARVER - THE LEGEND LIVES
CUTTING EDGE SOUND

(2)-1.5ts / tx-2 /c-2/ amazing originals / tl3200/c-9

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