Specifications

High-resolution

The following are some brief specs of the Revolution 7.1:

VIA Envy 24HT 8 channel controller
AKM 4381 DAC – front
AKM 4355 DAC – multi channel
AKM 5480 ADC – input

24-bit/192kHz playback and recording on all 8 channels
Supports all speaker configurations from stereo (or headphones) up to 7.1
Analog line in supports recording up to 24-bit/96kHz
Analog mic in supports recording up to 24-bit/96kHz
Dynamic Range: 106 dB (typical, -60 dB input, a-weighted)
Signal to Noise Ratio (Digital to Analog): 107 dB (typical, a-weighted); THD+N: -90 dB (typical)
Frequency Response: +0.8/-0.0 dB, 20Hz to 20kHz; +0.8/-3.0 dB, 20Hz to 20kHz
Crosstalk: -120 dB
Supports 24-bit Linear PCM; 16-bit Linear PCM, 16-bit Dolby Digital 5.1 (AC3), Dolby Pro Logic, DTS and other multi-channel formats
SRS TruSurround XT technology
Circle Surround II technology
32, 44.1, 48, 88.2, 96, 176.4, and 192kHz sampling frequencies
200kHz sampling rate conversion with MME drivers

ASIO support:
24-bit/192kHz Playback
24-bit/96kHz Record

Mic In:
Dynamic Range: 90 dB (a-weighted)
SNR: 90 dB (a-weighted)
THD+N: 0.003%
Frequency Response: +0.0/-3.0, 80Hz to 17kHz

Line In:
Dynamic Range: 105 dB (a-weighted)
SNR: 100 dB (a-weighted)
THD+N: 0.003%
Maximum Input Level: 1.45 Vrms (+3.2 dBV)

Connections:
4 stereo 1/8” mini jacks providing 8 discrete channels
SPDIF digital coaxial RCA output
Stereo 1/8” mini analog Line input
Mono 1/8” analog microphone input with power

Gaming support:
EAX 1.0 and 2.0, Sensaura, DirectSound, DirectSound3D, A3D, EnvironmentFX, MultiDrive, MacroFX, I3DL2, ZoomFX

Notes

From a technical point of view, the Revolution 7.1 has pretty much everything a gamer and/or music lover could want. Even those seeking to do a little recording on the side would be very happy with the Revolution 7.1’s recording resolution and ASIO support. With the Revolution, audio is processed and converted to analog through a true 24-bit/192kHz pipeline, so there’s no loss of quality. Notice also, that the SNR for the Revolution is an ultra clear 107 dB on all channels! This is superior to even the Audigy 2’s 106 dB for the front/rear channels but only around 90 dB for the center, sub and rear-center channels.