User manual CREST AUDIO CKX150 SPECIFICATIONS

[. . . ] Through the provision of three plug-in module bays, these amplifiers offer exceptional flexibility with integral signal processing, load monitoring, and either local or system-wide computer control via Crest Audio's NexSys® network. The CKX150 amplifier is manufactured exclusively in Crest Audio's own USA plant, using only the highest quality components. Key subassemblies are individually pre-tested, and all units are rigorously "burned-in" before final checkout on precision test equipment. CKX150 Features · Transformer-isolated outputs. [. . . ] AutoRamp gradually increases gain to attenuator setting level when amplifier is turned on. TourClass also includes comprehensive thermal management, and short circuit, DC voltage, turn-on/off transient, current inrush and sub/ultrasonic input protection. · · · · · · Selectable input sensitivity/voltage gain (internal jumpers) Front panel status indication Rear panel attenuators with removable knobs Barrier strip input and output connectors Optional input isolation transformers Front panel label area Power Specification 40Hz­20kHz, 0. 1% THD+N Figures are watts per channel, both channels driven. 75W NexSys is a registered trademark of Crest Audio Inc. C K X 1 5 0 P OW E R P RO C E S S I N G A M P L I F I E R PRELIMINARY SPECIFICATIONS 40Hz­20kHz, 0. 1% THD+N Output Power, 100 volt (50 or 70. 7 volt option) 75 watts Max RMS Output Voltage (each channel) 105V Peak Output Voltage (each channel) 150V Frequency Response (1W/100V) 38Hz­38kHz, +0/-3dB Power Bandwidth (rated power, 1% THD+N) 40Hz­16kHz, +0/-1dB TourClass® Protection ACL, IGM, AutoRamp, short circuit, DC voltage, turn- Architect's & Engineer's Specifications The power amplifier shall consist of 2 channels and deliver a minimum of 75 watts per channel into a 100 volt (50 or 70. 7 volt option) "constant voltage" line without the need for external step-up transformers, both channels driven, 40Hz­16kHz, 0. 1% THD+N. A variable speed fan, with the ability to completely turn off under appropriate ambient temperature conditions, shall provide air flow through the chassis from front to both sides. The amplifier shall have circuitry to protect itself and the speaker load from output short circuits, DC voltage on outputs, and thermal overload. The amplifier shall include circuitry to gradually increase gain to attenuator setting levels when amplifier is turned on, and circuitry for impedance sensing and active clip limiting. The amplifier shall include an energy saving feature which shall automatically remove the output stage bias current when the amplifier is in an idle condition. The amplifier shall have a voltage gain of X40, or a voltage gain of X20, or an input sensitivity of . 775V, for rated power, internally jumper-selectable. The hum and noise level shall be greater than 105dB below rated output, A-weighted. The amplifier shall have a class AB output stage (with a modulated power supply). The frequency response shall be greater than 40Hz­16kHz, (-1dB) at rated power. The amplifier shall operate at either 100, 120, 220, 230, or 240 volts, 50­60Hz AC (configured at factory). Maximum current draw at 240V shall be no greater than 1. 88A, both channels driven continuously into a 100V line. Front panel LED indicators shall include Active, Protect, Signal Present, and ACL (Clip Limiting) LEDs for each channel. The power switch shall have three positions; one to permit power up from a remote location, one to permit local power up, and an `off' position. The fan filter shall be front panel mounted, with no tools required for removal. The rear panel shall be configured with three openings or bays which will accept plug-in modules used to accomplish input signal processing, network control, remote sequential turn-on/off and other related functions. The output module shall be fitted with the following connectors: 5mm, 4-pin Phoenix for sequential turn-on/off wiring, and a touch-proof output barrier strip with 0. 438" (11mm) screw spacing, and 0. 320" (8mm) lug space. [. . . ] ©1997 Crest Audio Inc. Sequential Turn-On CLASS 2 WIRING MAY BE USED Output +8 to 18VDC 20 mA Model Name CKV 100 CKV 200 CKV 400 CKV 800 CKV 1600 CKV 2400 Output Power @70. 7V/Ch. 50W 100W 200W 400W 800W 1200W Model Name CKX 150 CKX 300 CKX 500 CKX 800 Output Power @100V/Ch. 75W 150W 250W 400W Model Name CKS 100 CKS 200 CKS 400 CKS 800 CKS 800-2 CKS 1200-2 CKS 1600-2 Output Power @8/Ch. 50W 100W 200W 400W 400W 600W 800W ­ A Level 456 A3 7 2 1 0 + In Out Com NEC CLASS 2 ONLY 8 9 10 + B Designed & manufactured in the USA by: Input A Input B Level 456 B3 7 + Model CC-BLK ­ + ­ 2 1 0 ­ Signal Ground Lift Jumper 8 9 10 Model CC-STL Crest Audio Inc. Paramus, New Jersey 07652 USA Model CC-IPB *A3300034* v. [. . . ]