chaparral said:
I think you need to post which 7.1 speaker system you have....
Has your 7.1 speaker system got a built in DD decoder...and have they got a Optical input
ok its the Creative Inspire T7900 7.1 Surround Sound Speaker System version
here is the spec
General Info
Creative Inspire T7900 7.1 Surround Sound Speaker System
Stock: Available
Dolby Digital EX, DTS ES and Microsoft DirectSound 3D support
Creative CMSS® upmix technology delivers realistic 7.1 surround sound even with 5-channel sound cards
20 Watts RMS horizontal center speaker
Description
Features
Dolby Digital EX, DTS ES and Microsoft DirectSound 3D support
Creative CMSS® upmix technology delivers realistic 7.1 surround sound even with 5-channel sound cards
20 Watts RMS horizontal center speaker
Two-way satellite speaker design; three front satellite speakers, each with a tweeter and a mid range driver to create a perfect tonal balance between highs and mids, ensuring accurate and balanced audio output
Wired remote control features power on/off, volume, bass adjustment, headphone jack and auxiliary line-in
Reinforced ported wood subwoofer with a 6.5-inch long-throw driver that delivers low frequencies and powerful bass reproduction
Specification
Speaker Power:
8 Watts RMS per channel (6 channels),
20 Watts RMS center speaker,
24 Watts RMS subwoofer
Frequency Response: 40Hz ~ 20kHz
Signal-to-Noise Ratio (SNR): 80dB
Satellite Speaker: 9.5cm x 7.7cm x 14cm
Satellite Speaker (with tweeter): 9.5cm x 7.7cm x 16.8cm
Center Satellite Speaker: 16.8cm x 7.7cm x 12.0cm
Subwoofer: 19.2cm x 30.0cm x 28.3cm