Audio System - Power Computing PowerTower Pro User Manual

Appendix B, Technical Information
Video
IMS Twin Turbo Video Card
High performance IMS TwinTurbo-128M8 128-bit graphics accelerator installed
Horizontal refresh rate up to 75 Hz
On-the-ßy resolution switching
4 or 8 MB VRAM on IMS Twin Turbo card
Supports 640 x 480 to 1920 x 1080 resolution
64-Bit High-Performance Video Card
High performance 64-bit PCI video card
Refresh rate up to 120 MHz
On-the-ßy resolution switching
2 MB VRAM

Audio system

Stereo sound generator capable of driving stereo mini-plug headphones or audio
equipment
CD-quality 16-bit stereo, 44.1 kHz sample rate, in and out
Sample rates of 44.1 kHz, 22.05, and 11.025 kHz
Input line level: 2 volts peak-to-peak nominal into 6.5 k
Input through output signal-to-noise ratio: >86 decibels (dB) with no audible discrete
tones
Bandwidth: 10 HzÐ19 kHz (+/Ð 2 dB) at 44.1 kHz sample rate
Total harmonic distortion plus noise: Less than 0.06%, measured 30 HzÐ60 kHz with a
2 V p-p sine wave input
Interfaces
Internal fast SCSI (10 MB/sec) bus and external SCSI (5 MB/sec) bus
Dual SCSI buses support up to seven devices each.
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PowerTower Pro UserÕs Guide
For Technical Support, Call 1-800-708-6227