Related Manuals for Crunch Drive DRA850.2
Summary of Contents for Crunch Drive DRA850.2
- Page 1 DRIVE AMPLIFIERS DRA850.2 / DRA1150.2 / DRA4050.2 DRA1050.4 / DRA1450.4 / DRA2450.4 / DRA4050.4 DRA1850.1D / DRA2550.1D / DRA3250.1D...
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Page 2: General Installation Procedure
GENERAL INSTALLATION PROCEDURE System Design The success of any car stereo system relies on several factors, such as the system design, execution of the installation, and system setup. Please remember that any system is only as good as its weakest link. Please remember that higher power systems are not necessarily useful purely for high sound pressure levels, but also to establish a headroom capability, to reproduce musical peaks cleanly without distortion. -
Page 3: Amplifier Feature Descriptions
Each model is capable of 4 & 2-Ohms stereo per channel, or 4-Ohms mono bridged operation except All Crunch amplifiers feature a comprehensive diagnostic system, with speaker lead short circuit, and the mono amps which are capable of 4, 2 and 1-Ohm loads. -
Page 4: Full Range Stereo
TO BATTERY + 12 volts VIA FUSE REMOTE TURN-ON CHASSIS GROUND MONO This application illustrates the basic mono bridging method for all Crunch 2 channel Switch setting checklist: amplifiers. - The X-OVER switch must be in the LPF position. - The MODE switch must be in the MONO position. - Page 5 DRA850.2 / DRA1150.2 / DRA4050.2 2-CHANNEL AMPLIFIER APPLICATIONS Stereo high pass with mono low-pass in a 2 way active, or bi-amplified system In this application we will use a 2 channel amplifier for the high frequencies, and a second Crossover frequency control checklist: one for the low frequencies, or mono sub bass.
- Page 6 Here we show how to use the 4 channel amplifiers as full range 2 or 3 channel units by Crossover frequency control checklist: taking advantage of the mono bridging capability of all Crunch amplifiers. Channels 1/2: - HI PASS: N/A...
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Page 7: Basic Application
DRA1850.1D / DRA2550.1D / DRA3250.1D D-CLASS 1 CHANNEL AMPLIFIER APPLICATION Basic application These sub bass amplifiers can be used in any of the bi-amplification systems described in Crossover frequency control checklist: this manual, replacing the 2 channel amplifiers as per the illustrations. LOW PASS: 80Hz (approximately 11 o’clock) SUBSONIC:35Hz (approximately 1 o’clock) Interconnect cable checklist:... -
Page 9: Setting Up Systems After Installation For Best Performance
SETTING UP SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE DRA850.2 / DRA1150.2 / DRA4050.2 / DRA1050.4 / DRA1450.4 / DRA2450.4 / DRA4050.4 General: At this point you are ready to get more specific on the settings for your amplifier. High Pass: -When in Hi Pass operation, this setting acts as a low frequency cut off for your system reproduction. -
Page 10: Troubleshooting A System
2 - Make sure that no speaker leads are shorting to exposed metal on the vehicle chassis. 3 -RCA cables are notorious for their problematic nature, so check that these are good, in particular the shield connections. CRUNCH AMPLIFIERS CAR AMPLIFIERS...