User manual PEAVEY 412MS STEREO DATASHEET

[. . . ] Please read this manual carefully, especially the IMPORTANT SAFETY INSTRUCTIONS on page 18. It contains information vital to safe operation of the power amplifier. Also, please fill out and return the enclosed product registration card. ICA Series amplifiers represent new levels of value and flexibility never before offered to the contracting market. [. . . ] In some cases, however, particularly if an amplifier is being installed in an existing system, this may result in a ground loop. if the cable shield is connected to the signal ground only , it will be clamped to +/- 0. The ICATM Series incorporates protection features derived from Peavey's extensive experience with reliability. The amplifiers are ruggedly built from high-quality components and feature comprehensive protection circuits to protect your amplifier from those "real world" occurrences. CLIP LIMITING At the amplifier's full power, or clipping point, the channel gain will automatically be reduced, guarding the loudspeakers against damaging high power and continuous square waves that would otherwise be produced. Normal program transients will not trigger Clip Limiting, only steady or excessive clipping will. operation is virtually transparent in use and full signal bandwidth is maintained. LOAD FAULT CORRECTIONTM LFC is an innovative circuit that will instantaneously reduce channel gain to allow the amplifier to operate at a safe level into an abnormal load. In addition, if extreme low impedance or a short circuit is encountered during high signal level conditions, the amplifier's output relay will open. FADE-IN PROTECTION This feature operates every time the amplifier is turned on, or after a protect condition. During turn on, the amplifier goes into protect mode and leaves the speaker load disconnected until the amplifier determines that the operating status is normal. 15% @ 400 W from 20 Hz 20 kHz with both channels driven ICA 800V-100: <0. 1% @ 400 W from 20 Hz - 20 kHz with both channels driven THD (one channel driven): <0. 5 volts for rated output Input Impedance: 20 k ohms, balanced Hum and Noise: > -108 dB, "A" weighted referenced to rated power Crosstalk: > -65 dB, "A" weighted referenced to rated power Current Draw @ 1/8 power: ICA 800V-70: 765 watts ICA 800V-100: 775 watts Current Draw @ 1/3 power: ICA 800V-70: 1, 100 watts ICA 800V-100: 1, 150 watts Idle Current Draw: 45 watts in Standby Mode Maximum Current Draw: ICA 800V-70: 1, 680 watts for rated power ICA 800V-100: 1, 700 watts for rated power Thermal Emissions (BTU/hr. ): 550 @ 1/8 power, 835 @ 1/3 power Cooling: 120 mm DC fan, off until heatsinks reach 45o C, then variable speed Controls: 2 rear panel attenuators, sequential turn-on / off Indicator LEDs: 2 Clip, 2 Signal, 2 LFC, 1 Protect, 1 Power Protection: Temp. , DC, turn-on bursts, subsonic, incorrect load or short Connectors: 8-pin plugable signal input, 4-pin plugable sequential power, 4-terminal barrier strip, IEC AC power connector Construction: All steel; 16 ga. Due to our efforts for constant improvements, features and specifications are subject to change without notice. 73 volts @ 4 ohms, 2 volts @ 8 ohms Input Impedance: 20 k ohms, balanced Hum and Noise: >-115 dB, "A" weighted referenced to rated power @ 8 ohms Crosstalk: >-55 dB, "A" weighted referenced to rated power @ 8 ohms Current Draw @ 1/8 power: 575 watts @ 4 ohms, 380 watts @ 8 ohms Current Draw @ 1/3 power: 1185 watts @ 4 ohms, 860 watts @ 8 ohms Idle Current Draw: 35 VA in Standby Mode Maximum Current Draw: 2, 760 VA (time limited by breaker) Thermal Emissions (BTU/hr. ): 940 @ 1/8 power 4 ohms, 615 @ 1/8 power 8 ohms, 1830 @ 1/3 power 4 ohms, 1335 @ 1/3 power @ 8 ohms Cooling: 120 mm DC fan, off until heatsinks reach 45° C, then variable speed Controls: 2 rear panel attenuators, sequential turn-on / off Indicator LEDs: 2 Clip, 2 Signal, 2 LFC, 1 Protect, 1 Power Protection: Temp. , DC, turn-on bursts, subsonic, incorrect load or short Connectors: 8-pin plugable signal input, 4-pin plugable sequential power, 4-terminal barrier strip, IEC AC power connector Construction: All steel; 16 ga. Due to our efforts for constant improvements, features and specifications are subject to change without notice. To enable In of next amplifier To common of next amplifier Due to our efforts for constant improvements, features and specifications are subject to change without notice. [. . . ] What Peavey Will Do We will repair or replace (at Peavey's discretion) products covered by warranty at no charge for labor or materials. If the product or component must be shipped to Peavey for warranty service, the consumer must pay initial shipping charges. If the repairs are covered by warranty, Peavey will pay the return shipping charges. How To Get Warranty Service (1) Take the defective item and your sales receipt or other proof of date of purchase to your Authorized Peavey Dealer or Authorized Peavey Service Center. [. . . ]