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CS
®
800S POWER AMPLIFIER OWNERS MANUAL
Congratulations on your purchase of the new CS
®
800S stereo power amplifier. This latest version is the most advanced
ever, using state-of-the-art switching power supply technology to deliver high fidelity and rock solid performance in a two-
rack-space unit that weighs just under 23 pounds. This new design retains the extended performance capability of the old
CS
®
800X, providing impressive two ohm output power capability, and maintaining the old 4 and 8 ohms ratings with
awesome industry standards for power bandwidth, slew rate and distortion specifications. The new “S” design also reflects
a significant improvement in damping factor specifications. Following are the new CS 800S specs:
• 420 W RMS into 4 ohms...600 W RMS into 2 ohms (per channel)
• 840 W RMS into 8 ohms...1200 W RMS into 4 ohms (bridged)
• DDT
™
compression with LED indicators and defeat switch
• Slew Rate: 40 V/microsecond, stereo mode, each channel
• Power Bandwidth: 10 Hz to 50 KHz @ 4 ohms, @ rated power
• Total Harmonic Distortion: Less than 0.03%, @ rated power
• Hum and Noise: 100 dB below rated power, unweighted
• Damping Factor: Greater than 1000 @ 4 ohms, 100 Hz each channel
The heavy transformer is replaced by an extremely reliable switching power supply that uses proven half-bridge topology
to provide 1,700 watts peak power from a high-efficiency IGBT design. The supply has a thermal monitor system with
proportional fold-back which prevents a total shutdown at extreme operating temperatures. The new CS 800S retains the
Peavey patented DDT
™
compression system which virtually eliminates any possibility of clipping. The new back panel
design now includes plug-in modules for both inputs and outputs, offering flexible patching features and various connector
choices. Two variable speed DC fans provide tremendous cooling capability upon demand.
THE AMP FEATURES
• Two rack space height...less than 17" depth
• Under 23 lbs...switching power supply
• Plug-in modular inputs
• Dual XLR (bal)/phone jack (unbal) with“thru” output per channel
• Universal three-way crossover module
• Plug-in modular outputs
• Dual phone jack and 5-way binding post per channel
• Dual Speakon
®
Quick Connect with patchable selection of pin-outs
• Modular construction
• Replaceable channel and power supply modules
• Significantly reduced mains turn-on surge
• Two variable speed DC fans...lower noise levels
• Calibrated/detented input attenuator control each channel
• DDT-activation LED and power LED each channel
• Recessed rear panel DDT and bridge switch
• IEC mains connector
THE DIGITAL POWER SUPPLY
• Ultra reliable - Robust
• Uses proven Half-Bridge topology...fewer parts
• 1,700 W peak power...25% over-design
• IGBT design...high efficiency
• Light weight...cost effective
• Massive aluminum heat sink...greater thermal stability
• Thermal monitor system with fold-back feature...no shutdown except fault
• Effective, low-cost filter design...low conducted EMI
• Fully operational down to 85 V AC mains (domestic)...170 V AC mains (export)
We hope you will find your new CS 800S not to be just another power amplifier, but the most exciting power amplifier you
have ever purchased. Please read over this owner’s manual carefully. It will help you to use this exciting product most
effectively.
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