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Crunch GPA700.2 Instruction Manual

Crunch GPA700.2 Instruction Manual

Ground pounder gpa amplifiers

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AMPLIFIERS
GPA700.2 / GPA1100.2 / GPA1800.2
GPA1000.4 / GPA1500.4 / GPA2000.4
GPA1000.1 / GPA1500.1 / GPA2000.1 / GPA3000.1

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Summary of Contents for Crunch GPA700.2

  • Page 1 AMPLIFIERS GPA700.2 / GPA1100.2 / GPA1800.2 GPA1000.4 / GPA1500.4 / GPA2000.4 GPA1000.1 / GPA1500.1 / GPA2000.1 / GPA3000.1...
  • Page 2 Ground Pounder GPA AMPLIFIERS Crunch is proud to introduce the finest high end car audio products available and would like to thank you for your continued support. The Ground Pounder Series range of products have been designed to a very high level of performance, with features unavailable in any other products.
  • Page 3 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 4 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 5 STEREO LINE INPUT TO BATTERY + 12 volts VIA FUSE REMOTE TURN-ON CHASSIS GROUND FULL RANGE 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 FULL position.
  • Page 6 GPA700.2 / GPA1100.2 / GPA1800.2 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 7 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...
  • Page 8 GPA1000.1 / GPA1500.1 / GPA2000.1 GPA3000.1 1 CHANNEL APPLICATION Basic application These sub bass amplifiers can be used in any of the bi-amplification systems described in LOW PASS: 40Hz to 150Hz this manual, replacing the 2 channel amplifiers as per the illustrations. SUBSONIC:15 Hz to 55 Hz BASS EQ: 0 to +9dB Interconnect cable checklist:...
  • Page 9 2 CHANNEL 4 CHANNEL FEATURES GPA700.2 GPA1100.2 GPA1800.2 GPA1000.4 GPA1500.4 GPA2000.4 MAXX Output Power Rating 4 Ohm 2 x 175 2 x 225 2 x 450 4 x 125 4 x 185 4 x 450 2 Ohm 2 x 350...
  • Page 10 SETTING UP SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE GPA700.2 / GPA1100.2 / GPA1800.2 / GPA1000.4 / GPA1500.4 / GPA2000.4 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. The point that you set it at cuts off any frequencies from reproduction beyond this point.
  • Page 11 TROUBLESHOOTING A SYSTEM The key to finding the problem in a misbehaving sound system is to isolate parts of that system in a logical fashion to track down the fault. Description of the PROTECT system built into all GROUND POUNDER amplifiers The diagnostic system will shut down the amplifier, until reset by turning the head unit off, and back on.
  • Page 12 Biggest POWER systems V3 Products, Level 10 Performance + 1 Year Warranty Moderate POWER systems V2 Products, Level 7 Performance + 6 Month Warranty Smaller POWER systems V1 Products, Level 5 Performance...
  • Page 13 CRUNCH Maxxsonics Limited Warranty As the manufacturer of Maxxsonics, Autotek, Crunch, MB Quart and Hifonics car audio products, Maxxsonics USA Inc. Warrants to the original consumer purchaser the amplifier to be free from defects in material and workmanship for one (1) Year from date of purchase.