Owner manual HC Series amplifiers HC HC HC HC 550.2

Transcription

1 Owner manual HC Series amplifiers HC HC HC HC 550.2

2 INDEX Introduction pag 2 Important pag 2 Warning pag 2 Main Features pag 3 Specifications pag 3 Controls pag 4 Control Panel pag 4-5 Installation pag 6 Wiring System Nr. 1 pag 7 Wiring System Nr. 2 pag 8-9 Wiring System Nr. 3 pag Mach Impact HC amplifiers to Impact subwoofer pag Troubleshooting pag 14 INTRODUCTION Congratulation on your purchase of a new Impact High Current amplifier. We, at Impact, are aware of the fact that your choice of an HC series amp has been deeply thought out and that your expectations are high; be sure that this product will fulfill them all. This HC amp is a sum of technology and good sense that join sound reproduction quality with the extraordinary capability to drive 1 Ohm stereo as well as 2 Ohm mono loads. This amp s performances are unequalled and can match any installation needs. IMPORTANT Impact HC amplifiers are advanced units, provided with a sophisticated control system that guarantees superior performances. HC amplifiers will give you a life of uncompromised musical service under the strict condition of a perfect installation; this requires car audio installation knowledge and technique as well as proper installation tools and equipment. For this reason, we highly recommend you to apply to professional Impact Authorized Installers to be sure of the absolute guarantee in terms of best performances and safe installation. If you decide to install your HC amplifier by yourself, we recommend you to read this owner s manual very carefully and to follow strictly all instructions inside. WARNING Impact HC amplifiers can reproduce high sound pressure levels that can cause permanent damages to your hearing system by long exposures. The human hearing system is so deceiving as it gets used to high sound pressure levels very soon; as a consequence, a high sound level, which is perceived as «ordinary», can be really dangerous. We want you to take care of your ears so, in order to avoid any inconvenience, state a safe sound level. State it before your hearing get used to extreme loud volumes, just acting as follows: 1. Start listening at the lowest volume 2. Increase slowly your volume level by steps till the sound is clear and pleasant without distortion. 3. Once you have stated the comfort volume level, take due notice of it and do not overcome it. 2

3 MAIN FEATURES Stereo, Bridged and Tri-Mode System application Compatible Full Mos-Fet Circuitry 1 Ohm Stable Stereo Operation 2 Ohm Stable Mono Operation Variable input level controls Built-in excludible Low Pass/High Pass Crossover Switchable low pass crossover slope 24 db/oct Variable subsonic Filter Built-in adjustable Bass-Boost Bass boos remote control phone jack High Temperature Thermal Management System Circuitry Overload Protection System Output Short Circuit Protection DC Offset Circuit Protection RCA Line Output SPECIFICATIONS HC 75.2 HC HC HC RMS 4 Ohm - 13,8 V W 2 x 75 2 x x x 500 RMS 2 Ohm - 13,8 V W 2 x x x x 700 RMS 1 Ohm - 13,8 V W 2 x x x x 900 Mono Bridged RMS 4 Ohm - 13,8 V W 1 x x x x Mono Bridged RMS 2 Ohm - 13,8 V W 1 x x x x Total Harmonic Distortion % 0,03 0,03 0,03 0,03 Input Sensitivity V 0,2 9 0,2 9 0,2 9 0,2 9 Input Impedance Kohm Frequency Response Hz Signal to Noise Ratio db > 95 > 95 > 95 > 95 Damping Factor High Pass Crossover Range Hz Low Pass Crossover Range Hz Subsonic Filter Range (24 db/oct) Hz Bass Boost 45 Hz db 0 / / / / +18 Bass Boost Remote Control Jack Yes Yes Yes Yes Line Output Yes Yes Yes Yes Dimensions (W x H x D) mm 260x60x x60x x60x x60x855 3

4 CONTROLS CONTROL PANELS The Impact HC amplifiers feature an extremely flexible set of input and output controls which permit the widest range of installation opportunities. In order to ensure best performance, any adjustment should be made after the amplifier is installed and all input, speaker and power connections are completed RCA LINE INPUT JACKS It allows left and right inputs to be connected to the amplifier using RCA plugs. 2. SUBSONIC FILTER FREQUENCY CONTROL Adjust crossover frequency of the subsonic filter only, from 10 Hz to 150 Hz. 3. LOW PASS FILTER FREQUENCY CONTROL Adjust crossover frequency of the low pass output only, from 40 Hz to Hz. 4. STEREO/MONO SWITCH When set in MONO mode, the low pass signal is mono with a 24 db/oct crossover slope. When set in STEREO mode, the low pass signal is stereo with a 12 db/oct crossover slope. 5. AMPLIFIER X-OVER SELECT SWITCH a. LOW position: crossover operates in lowpass mode b. FULL position: crossover off c. HI position: crossover operates in high-pass mode 6. HIGH PASS FILTER FREQUENCY CONTROL Adjust the crossover frequency of the high pass output only, from 10 Hz to Hz. 7. INPUT LEVEL CONTROL Provides input level adjustment from 200 mv to 9 V. 8. BASS EQ CONTROL Adjust the 45 Hz frequency output from + 0 to +18 db. 4

5 CONTROL PANELS 9. POWER LED (green) Illumination of this led indicates that the amplifier is operating normally. 10. PROTECTION LED (red) Illumination of this led indicates that a short circuit exist somewhere in your system. The amplifier turns off. 11. RCA LINE OUTPUT JACKS Line out signal is automatically set by the position of the amplifier crossover select switch (5). When amplifier crossover switch is in LOW position (i.e. 150 Hz), line output signal is automatically set in HIGH PASS mode at 150 Hz. When amplifier crossover switch is in Full position line output signal is Full Range When amplifier crossover switch is in HI position (i.e. 200 Hz), line output signal is automatically set in LOW PASS mode at 200 Hz 12. BASS BOOST REMOTE CONTROL PHONE JACK Connecting the optional remote controller (HC-R2) to this plug, you can set the bass boost while driving 5

6 INSTALLATION Please read Installation Precaution before installing your Impact HC amplifier, and then refer to the diagrams provided to connect power, speaker and audio input connections according to your own system design. Installation Precaution For safety, disconnect the battery during installation. Confirm that your head-unit or other equipment is turned off while connecting the input jacks and speaker terminals. Select a location inside your vehicle which has adequate ventilation and protected from dust and moisture Before drill or cut any holes, investigate your car s layout very carefully. Take care when you work near gas tank, hydraulic and fuel lines, electrical wiring. Do not operate the amplifier when unmounted. Fix all audio system components securely within your car to prevent shorts and damage especially in case of an accident. Do not mount this amplifier so that the wire connections are unprotected or likely to be damaged by nearby objects. If you need to replace a fuse, only replace it with a fuse of exactly same type and rating. Use proper sized wires to prevent electrical fire, system damages and to obtain peak performance. Amplifier Installation Bolt the amplifier to the mounting surface. Do not mount the amplifier upside down, as it will restrict airflow over the heat sink. Using a 2 AWG, or larger, wire, run a ground wire from the GND terminal of the amplifier to the nearest chassis ground. Make sure that the connection to the chassis is rust free and cleared of all paint. Run a wire (same gauge of ground wire) from the positive terminal of the battery to the + 12 V terminal of the amplifier. Install an in-line fuse holder at about 45 cm. (18 ) from the positive (+) terminal of the battery. If multiple amplifiers are to be run, and a distribution block is used, then run the largest gauge wire from the battery (+) to the location in the vehicle where the distribution block is located. Install a fuse holder (or a circuit breaker) at about 45 cm. (18 ) from the positive (+) terminal of the battery. This fuse/circuit breaker must be able to handle the total current of amplifiers being used. Now, individually fuse each amplifier after the distribution block at the amplifier location. Using a 12 AWG wire, run the Remote wire from the REM terminal of the amplifier to the remote output of head-unit. Connect the RCA input terminals of the amplifier to the signal source using top quality interconnect. Set amplifiers controls as described in the system you choose and according to the wiring diagrams that follow in this manual.

7 WIRING SYSTEM Nr. 1 2 channel stereo configuration to output of Head Unit to Battery FUSE Settings: Adjust the Input Level control to suit the signal output from the source. For Full Range Speaker System set the selector AMPLIFIER X-OVER to the FULL position For Low Pass Speaker System (i.e. HC used as a subwoofer amplifier) set the selector AM- PLIFIER X-OVER to the LOW position. Then set the Low Pass Frequency control (LOW PASS) to suit the speakers. For High Pass Speaker System (i.e. front system, tweeter driving) set the selector AMPLI- FIER X-OVER to the HI position. Then set the High Pass Frequency control (HIGH PASS) to suit the speakers. You can adjust the bass response setting the BASS EQ control to an increase up to + 18 db. to Remote Control from Head Unit Left Speaker Right Speaker WARNING: an increase of 3 db means the double of power: use the BASS EQ control with care and moderation since you may cause damages to the subwoofer (not covered by warranty). Connections: Power (+ 12 V, GND, REM) connections: refer to the above diagram Input and speaker connections: as shown in above diagram

8 WIRING SYSTEM Nr. 2 Simultaneous Stereo and Mono Configuration to output of Head Unit to Battery FUSE High Pass Passive Crossover Right Satellite Speaker to Remote Control from Head Unit Left Satellite Speaker Low Pass Passive Crossover 8 Mono Speaker

9 WARNING! This wiring requires a minimum speaker impedance of 2 Ohm or more (both front system and subwoofer) Connections: Connect a stereo signal source to amplifier inputs Connect the speakers as shown on the above diagram. NOTE MINIMUM IMPEDANCES!!! Settings Adjust the Input Level control to suit the signal output from the source. Set the Crossover switch selector (AMPLIFIER X-OVER) to the FULL position. You can adjust the bass response setting the BASS EQ control to an increase up to + 18 db. WARNING: an increase of 3 db means the double of power: use the BASS EQ control with care and moderation since you may cause damages to the subwoofer (not covered by warranty). 9

10 WIRING SYSTEM Nr. 3 AMP B - front Two amplifiers in a Bi-amp System (front system + mono subwoofer) AMP A - front AMP B - rear to output of Head Unit to Battery FUSE AMP A - rear to Remote Control from Head Unit Left Satellite Speaker Right Satellite Speaker to Battery FUSE 10 to Remote Control from Head Unit Mono Speaker

11 Amplifier A Input and Speaker Connections Connect the Input signal to amplifier A as shown in above diagram Connect the mono subwoofer as shown in above diagram Amplifier A Settings Adjust the LEVEL control to suit the signal output from the source. Set the Crossover switch selector (AMPLIFIER X-OVER) to the LOW position. Then set the Low Pass Frequency control LOW PASS to suit the Subwoofer. Select the STEREO/MONO switch to MONO -24 db position. Set the SUBSONIC filter frequency to desired position (we suggest a 20 to 40 Hz setting) You can adjust the bass response setting the BASS EQ control. Amplifier B Input and Speaker Connections Connect the LINE OUT of Amplifier A to the LINE INPUT of Amplifier B. Be careful to maintain polarity for correct imaging. Connect the front speakers to the speaker connector terminals as shown on left of above diagram. Amplifier B Settings Adjust the LEVEL control to suit the signal output from the source. Set the Crossover switch selector (AMPLIFIER X-OVER) to the FULL position. WARNING: an increase of 3 db means the double of power: use the BASS EQ control with care and moderation since you may cause damages to the subwoofer (not covered by warranty). 11

12 Mach Impact HC amplifiers to Impact subwoofer Great power handling and High Current capabilities make Impact HC amplifiers the best choice for powering a subwoofer system. Here are some 2 Ohm subwoofer system mono wiring configuration for the best performance. Subwoofer 67 serie Subwoofer 57 serie 12

13 Subwoofer serie Subwoofer 27 serie 13

14 TROUBLESHOOTING Amplifier will not power up Check fuse Check all power connections (+ 12 V, Ground and Remote) Check for at least 3 V on remote wire Amplifier powers up, but then go into Protection mode All HC amplifiers are equipped with a diagnostic device that turns the amp off immediately in case of shorted speaker wire (or shorted speaker) or faulty amplifier. To evaluate, disconnect all speaker wires and re-power the amplifier: if it doesn t go into protection mode the problem is in the speaker or in the speaker wire. If the amplifier goes into protection mode with speaker leads disconnected, the amplifier is faulty. The amplifier can be restarted by turning the remote power OFF and ON again. Overheating HC amplifiers feature a built-in thermal control device that turns them off in case of extreme temperature conditions. If this case occurs, allow the amplifier to cool down before attempting to restart it. Thermal overload conditions are caused by a lack of reasonable airflow over the heat sink or by driving speaker of lower impedance than recommended. No sound Check radio volume and fader control Check speaker wires for loose or disconnect Check RCA input cable for defective, loose or disconnect Check speaker wires for loose or disconnect Weak output Check head unit volume and fader control Check amplifier level control setting Check that the correct crossover type has been selected for the speaker being used Check RCA cables Check the head unit with another amplifier in good working condition. Only one channel works Check the balance control on the head-unit Confirm that all terminal strip connections are secure and tight Reverse the input RCA plugs at the amplifier. If the channel which is silent switches to the other side the problem is either in the headunit or in the RCA interconnect Hiss noise Check Input Level control of the amplifier Check head unit and disconnect input RCA cable. If the hiss disappears RCA cable or head-unit are faulty Alternator whine in speakers Confirm that the amplifier and any other signal sources are properly grounded. Remove RCA input from amplifier. If the whine disappear, check input cable and head-unit 14