so my new amps have balanced inputs and therefore I am able to easily achieve a 4 vrms input from a soundcard. But I am wondering what are the important things to look at when researching them. this is what i am looking at:
(note...if you have any recommendations for a soundcard (hopefully below $400 please let me know)
http://www.ramelectronics.net/html/m...phile-192.html
Quote:
main outputs
max output (balanced): +14dBu (3.9 Vrms)
max output (unbalanced): +8dBu (1.95 Vrms)
signal to noise ratio: -108dB @ 48kHz (a-weighted)
dynamic range: 109dB @ 48kHz (a-weighted)
THD + N: 0.0023%, 1kHz, -1dBFS @ 48kHz
frequency response: +/-0.1dB, 20Hz to 20kHz @ 48kHz
+/-0.1dB, 20Hz to 40kHz @ 96kHz
+/-0.5dB, 20Hz to 80kHz @ 192kHz
crosstalk: -105dB, 1kHz, channel-to-channel
impedance (balanced): 300 Ohms
impedance (unbalanced): 150 Ohms
here is all the sc's info:
The Audiophile 192 continues the legacy of M-Audio’s industry-standard Delta audio card line. Building on our Audiophile 2496—one of the world’s most popular audio cards—the Audiophile 192 features high-definition 192kHz sampling rate, digital I/O, balanced analog I/O and an amazing signal-to-noise ratio. The Audiophile 192 represents a new benchmark in audio performance that’s as good as it gets for music production, mastering and critical listening. As with all Delta cards, you get rock-solid drivers and seamless integration with your favorite Mac and PC applications—and even the ability to combine multiple Delta cards in one system*. And since M-Audio is always ahead of the pack, this world-class card is also compliant with PCI 2.2 and 64-bit audio drivers so you’re ready to take advantage of next-generation platforms and software. The Audiophile 192 is the new world-class standard in stereo audio cards.
Features
• up to 24-bit/192kHz audio
• 2 x 2 balanced analog I/O
• S/PDIF digital I/O with PCM and surround
• direct hardware input monitoring
• 16-channel MIDI I/O
Specifications
up to 24-bit/192kHz audio
2 balanced analog inputs (1/4” TRS)
2 balanced analog outputs (1/4” TRS)
S/PDIF digital I/O (coaxial RCA connectors) with 2-channel PCM
SCMS copy protection control
digital I/O supports surround-encoded AC-3 and DTS pass-through**
direct hardware input monitoring via separate balanced 1/4” TRS monitor outputs
software routing of inputs and outputs
digital I/O can be routed to/from external effects
16-channel MIDI I/O
ASIO, WDM, GSIF 2 and Core Audio driver support for compatibility with most applications
64-bit driver support for Windows
PCI 2.2 compatibility
works with other Delta cards*
* check
www.m-audio.com for current system requirements
** Windows XP required for Dolby Digital and DTS “pass-through”; Mac OS 10.3.4 required for Dolby Digital and DTS “pass-through” with Apple DVD Player
general specifications
sample rates (kHz): 44.1, 48, 88.2, 96, 176.4, 192
main inputs
max input (balanced): +14.2dBu (4 Vrms)
max input (unbalanced): +14.2dBu (4 Vrms)
signal to noise ratio: -113dB @ 48kHz (a-weighted)
dynamic range: 113 dB @ 48kHz (a-weighted)
THD + N: 0.0006%, 1kHz, -1dBFS @ 48kHz
frequency response: +/-0.1dB, 20Hz to 20kHz @ 48kHz
+/-0.1dB, 20Hz to 40kHz @ 96kHz
+/-0.5dB, 20Hz to 80kHz @ 192kHz
crosstalk: -130dB, 1kHz, channel-to-channel
impedance (balanced): 20k Ohms
impedance (unbalanced): 10k Ohms
main outputs
max output (balanced): +14dBu (3.9 Vrms)
max output (unbalanced): +8dBu (1.95 Vrms)
signal to noise ratio: -108dB @ 48kHz (a-weighted)
dynamic range: 109dB @ 48kHz (a-weighted)
THD + N: 0.0023%, 1kHz, -1dBFS @ 48kHz
frequency response: +/-0.1dB, 20Hz to 20kHz @ 48kHz
+/-0.1dB, 20Hz to 40kHz @ 96kHz
+/-0.5dB, 20Hz to 80kHz @ 192kHz
crosstalk: -105dB, 1kHz, channel-to-channel
impedance (balanced): 300 Ohms
impedance (unbalanced): 150 Ohms
Compatibility
ASIO
WDM
GSIF 2
Core Audio
Pentium 3 – 700 MHz or higher, 256 MB RAM (192 and 96kHz operation)
Pentium 3 – 500 MHz or higher, 128 MB RAM (48kHz operation)
DirectX 9.0b or higher
Windows XP (SP1) or Windows 2000 (SP4)
Available PCI slot
Macintosh G4 733 MHz or higher
512MB RAM
Mac OS X Jaguar (10.2.8 or later) or Panther (10.3.4)
Linear Mode
