Related Manuals for Hafler CI-1255e
Summary of Contents for Hafler CI-1255e
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Page 1: User Guide
CI-1255e 12 Channel Multi Zone Power Amplifi er User Guide Hafl er is a division of Radial Engineering Ltd. 1588 Kebet Way, Port Coquitlam BC, Canada V3C 5M5 (604) 942-1001 info@hafl er.com www.hafl er.com... -
Page 3: Table Of Contents
If afterwards, you still do not find the answer to your question, feel free to send us an email at info@hafler.com and we will do our very best to respond in short order. - Page 4 Servicing is required when your CI-1255e has been damaged in any way. Examples include power-supply cord or plug is damaged; liquid has been spilled or objects have fallen into the amp; the amplifier has been exposed to rain or moisture; does not seem to operate normally;...
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Page 5: Overview
RCA inputs for each channel, and a global bus that allows you to connect one stereo source and have it feed as many of the stereo pairs as you like. The CI-1255e is turned on and off via the front panel power switch and with ECOSYSTEM™, it automatically turns itself off when no signal is present for energy savings. -
Page 6: Features
Passion for Perfection feATuReS buS INPuT: conveniently located to connect a cell phone, tablet, or Bluetooth® interface to the CI-1255e. LedS: Individual LEDs on each channel to monitor signal presence and clip for each connected zone. PoWeR: High tensile power switch is rated at over 10,000 actuations for extra durability. - Page 7 10. buS SeLeCT: Routes input of each channel to the stereo input BUS. 11. RCA INPuTS: Used to connect unbalanced source audio signal to the CI-1255e input channels. 12. GAIN: Individual level control for each channel, set using a small screwdriver.
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Page 8: Mounting Options
Minimum 16 gauge copper wire is recommended with 14 gauge minimum for runs over 30’ (10m) — see chart below. The CI-1255e works optimally with 6-8 Ω loads. Connecting to 4 Ω loads won’t hurt the CI-1255e but those channels connected to 4 Ω... -
Page 9: Making Connections
110-120 volts, the rear panel voltage switch will be factory set to 115 volts. If you are in Europe, the United Kingdom, Australia or other countries that employ 220-240 volts, the rear panel voltage switch will be factory set to 230 volts. The CI-1255e is designed to safely handle a fairly wide voltage range at the input to address most needs. -
Page 10: Connecting A Subwoofer
CoNNeCTING The INPuTS There are several ways to connect to the CI-1255e from your source system. This can be done with all channels playing the same music or program material, or be setup with individual programs for each zone. You can also order special modules and mount them into the OmniPort to add screw-down terminal inputs, Jensen transformer isolation, balanced inputs and even a Dante digital interface to connect your CI-1255e to an Ethernet network hub. -
Page 11: Using The Bus Inputs
Zone 5 Zone 6 via the 3.5mm input. The BUS RCA input on the rear should be disconnected. Zone 4 Zone 3 Zone 2 Zone 1 Hafl er CI-1255e™ Power Amplifi er... -
Page 12: Using Individual Channel Inputs
Zone 1 Zone 2 Bridge Mono Zone 4 Zone 3 Rock Playlist Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Bus In Bus In Bus In Bus In Classical Music Hafl er CI-1255e™ Power Amplifi er... -
Page 13: Adjusting Levels
AuTomATIC fAuLT-SAfe™ PRoTeCTIoN CIRCuITRy Another great feature that is built into the CI-1255e is the Fault-Safe™ automatic protection mode. Each CI-1255e channel is individually and fully protected against low impedance, overheating, overloading, over voltage and under voltage — should any of the following faults occur, the CI-1255e will automatically shut down any affected channels. -
Page 14: Troubleshooting
Addressing the electrical outlets Most often, the CI-1255e will be connected to a preamp of sorts that will have various sources connected to it such as a TV, cable, video player and so on. Disconnect all of these and connect the preamp to the CI-1255e and listen. If at this point you are hearing some noise, check the electrical system using a polarity checker. - Page 15 If all is well with the electrical outlets, but you are encountering noise, adding an isolation transformer module in between your preamp and amplifier can help eliminate the noise. If you are only using the bus input on the CI-1255e, the easiest solution is to add a CI-9022 or CI-9024 into the Omniport.
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Page 16: Troubleshooting
Verify speaker impedance is 4-16 Ω, if below 4 ohms, the amp may be overheating. Check if the CI-1255e feels hot, if it does, make sure sufficient ventilation has been provided and check to make sure the CI- 1255e fan is working or not obstructed in any way. -
Page 17: Faq
What happens if I use a loudspeaker with a lower impedance than rated? Do not do so. The Hafler CI-1255e is designed to work within certain limits and applying the proper load is critical to long term reliability. What happens if I use a loudspeaker that is rated higher than the recommended impedance? The efficiency of the system will be reduced and the system will not play as loud. -
Page 18: Specifications
50ft (16m) - min 16-gauge copper 100ft (32m) - min 14-gauge copper 200ft (64m) - min 12-gauge copper 500ft (160m) - min 10-gauge copper ECOSYSTEM™ shut-off time Automatically variable 40-200s ECOSYSTEM™ turn-on time 10ms typical Specifications subject to change without notice Hafler CI-1255e™ Power Amplifier... -
Page 19: Block Diagram
9 LEFT LEFT - DETECT RIGHT - RIGHT + 10 RIGHT BRIDGE + LEFT + 11 LEFT LEFT - DETECT RIGHT - RIGHT + 12 RIGHT BRIDGE - INVERT BRIDGE Specifications subject to change without notice Hafler CI-1255e™ Power Amplifier... -
Page 20: Warranty
ThRee yeAR TRANSfeRAbLe LImITed WARRANTy HAFLER (A division of Radial Engineering Ltd.) (“Hafl er”) warrants this product to be free from defects in material and workmanship and will remedy any such defects free of charge according to the terms of this warranty. Hafl er will repair or replace (at its option) any defective component(s) of this product (excluding fi...
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