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Table of Contents
Related Manuals for Crate SPA100
Summary of Contents for Crate SPA100
- Page 1 User’s Guide for the C R AT E A U D I O SPA100 Power Power Signal Limit Protect 1/2-Rack Power Amplifier In order to achieve maximum performance from your new Crate Audio SPA Series Power Amp we recommend that you read...
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Page 2: Table Of Contents
SPA100 1 / 2 - R a c k P o w e r A m p l i f i e r Mono Operation (One Amplifier) . -
Page 3: Introduction
The SPA100 produces up to 100 watts of power @ 4 ohms, or 75 watts @ 8 ohms. Several “pro- fessional” features have been built into the SPA100, such as 1/4” phone and XLR input jacks with elec- tronically balanced Low or High impedance operation. -
Page 4: Front Panel Information
+2dBv. Normal calibra- tion of the SPA100 to a mixer would cause the Peak LED to flash at the same time that the mixer’s VU meters indi- cate full output. -
Page 5: Rear Panel Information
Rear Panel Information: LINE INPUTS 8: FAN INTAKE AREA: Air for cooling the SPA100 is drawn in by the fan at the rear and side, directed through the amplifier, and exhausted through the front panel vent. Do not block or impede the airflow through these vents and keep the area free of foreign materials. -
Page 6: Speaker Impedances And Power Ratings
Note that some combinations result in impedances less than 4 ohms. (the shaded areas) These combi- nations are not recommended for the SPA100 and should be avoided. They are included on the chart for reference only. Too low an impedance will activate the amplifier’s protection circuit. -
Page 7: Installations And Operation
SPA100 Installations and Operation: Mono Operation (One Amplifier): Connect a SPA100 between the outputs of your mono signal source and your speaker(s). The minimum impedance for the speak- er(s) is 4 ohms. GRAPHIC EQ (LS1-131) MIXING CONSOLE (CSX12, CMX62, etc.) -
Page 8: Stereo Operation (Two Amplifiers)
Stereo Operation (Two Amplifiers): Connect one SPA100 between the left channel output of your stereo signal source and your left channel speaker(s). Connect anoth- er SPA100 between the right channel output of your stereo signal source and your right channel speaker(s). The minimum impedance for the speaker(s) is 4 ohms for each amplifier. -
Page 9: Main / Monitor Combination (Two Amplifiers)
Stereo Operation (Two Amplifiers): Connect one SPA100 between the output of your house speaker signal source and your house speaker(s). Connect another SPA100 between the output of your monitor signal source and your monitor speaker(s). The minimum impedance for the speaker(s) is 4 ohms for each amplifier. -
Page 10: Biamping (Two Amplifiers)
Connect one SPA100 between the output of your low frequency signal source and your low frequency speaker(s). Connect anoth- er SPA100 between the output of your full range signal source and your full range speaker(s). The minimum impedance for the speak- er(s) is 4 ohms for each amplifier. -
Page 11: Triamping (Three Amplifiers)
Connect one SPA100 between the output of your low frequency signal source and your low frequency speaker(s). Connect anoth- er SPA100 between the output of your mid frequency signal source and your mid frequency speaker(s). Connect a third SPA100 between the output of your high frequency signal source and your high frequency speaker(s). The minimum impedance for the speak- er(s) is 4 ohms for each amplifier. -
Page 12: System Block Diagram
SPA100 Technical Specifications POWER OUTPUT FREQUENCY RESPONSE TOTAL HARMONIC DISTORTION INTERMODULATION DISTORTION SLEW RATE SIGNAL TO NOISE RATIO INPUT TYPE AND IMPEDANCE INPUT SENSITIVITY LOAD IMPEDANCE OUTPUT CONNECTIONS PROTECTION CIRCUITRY COOLING POWER REQUIREMENTS DOMESTIC: 120 VAC 60Hz, 75VA EXPORT: 100-115 VAC 50/60Hz, 75VA...