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24

Installation Manual

If you have ever listened to a friend’s “Killer” car audio system and 

were sad to hear lots of hiss, clicks, or pops, then you have experi-

enced an improperly level-matched system. When a performance 

autosound system is properly level-matched, you should get the max-

imum output from your source unit and your amplifier without any 

clipping. The following steps will help guide you through the process:
1. 

Before you begin, make sure that you are wearing good 

quality hearing protection, as it is going to get very loud, 

enough to damage your hearing. Bits of cotton wool in 

the ears is not going to cut it. Do not attempt this on a 

quiet Sunday morning in the church car park.

2.  Turn down, or turn off the amplifiers that power your main speak-

ers. This will help prevent damage to the other speakers in your 

system.

3.  Set the ACR-3 Remote (in red-LED mode) to 

maximum

. (As it is an 

endless control, then turning it more than one turn is considered 

the maximum.)

4.  Set the Epicenter amplifier’s Gain control to 

minimum

.

5.  Set the source volume to 

minimum

, and set the source bass and 

treble controls as you expect them to be used during listening.

6.  Start playing the signal material at the source device. The ideal 

material would be an uncompressed, 100 Hz sinewave at -1 dBFS. 

If you do not have such a test signal, choose uncompressed, full 

Adjusting the System

volume music in the region of interest. This is a subwoofer am-

plifier, so the region of interest is 20 Hz to 200 Hz.  A good choice 

would be “Shake Your Rump” from Paul’s Boutique (Capitol CDP 7 

91743 2) where there is some prolonged passages of heavy bass. 

A poor choice would be “Clair de Lune”, a lullaby, or a recording of 

finger cymbals.

7.  Increase the source volume just enough until the MILC Source Clip 

LED begins to flicker on the Epicenter amplifier. This is an indica-

tion of low frequency clipping, and represents the very maximum 

output of the source unit. (Behold the power of calculus at play 

within the Epicenter amplifier to detect clipping.) Note: If the head 

unit has RCA line-level outputs, then there may not be enough 

signal to reach clipping anyway. If you are using the speaker-level 

outputs, then chances are that clipping is possible.

8.  Now that the source is playing its loudest but not clipping, slowly 

increase the Epicenter amplifier’s Gain control until the “Gain Max-

imized” LED begins to flicker, or if you hear the woofers begin to 

bottom out, whichever comes first. This represents the maximum 

playback level for the system.

9.  Your system gain has now been optimized.
10. Reset the source volume to 

minimum

 and the ACR-3 Remote (in 

red-LED mode) to 

minimum, 

so there are no surprises when you 

turn the system back on.

Chapter 6: Adjusting The System

Содержание Epicenter 1200

Страница 1: ...HIGH POWER SUBWOOFER AMPLIFIERS Installation Manual AND...

Страница 2: ...in or moisture does not operate normally or has been dropped 14 This apparatus shall not be exposed to dripping or splashing and no object filled with liquids shall be placed on the apparatus 15 Fuses...

Страница 3: ...stallation 13 ACR 3 Dash Control Installation 15 Top Lid Removal and Installation 16 Speaker Connections 17 Speaker and Wiring Impedance 17 Chapter 5 Features 18 Connection Panel Features 18 Control P...

Страница 4: ...l clown folk who have wronged you Congratulations You are now installing a component which will dramatically improve the performance of any low frequency car audio system especially those requiring lo...

Страница 5: ...tics speaker and enclosure design and location and the performance recording process MILC Maximum Input Level Control The Epicenter amplifier analyses the incoming audio signals and detects any signal...

Страница 6: ...Level Control Patent Pending 24 dB Octave Linkwitz Riley Alignment Crossover GTO Signal Sense PFM Subsonic Filter Line Level RCA Inputs and Active Speaker Level Inputs Solid One Piece Aluminum Chassis...

Страница 7: ...Power Input Terminal 4 Power Input Terminal Ground 5 Speaker Level Inputs 6 RCA Analog Line Level Inputs 7 Expansion Bus In and Out 8 Remote Control Connector 9 Speaker Level Outputs 1 2 3 4 5 6 7 8...

Страница 8: ...ermi nal of the vehicle battery 6 Connect the Ground terminal of the unit to the chassis of the vehicle 7 Connect the remote power terminal of the unit to the remote turn on switch of your source unit...

Страница 9: ...he Epicenter s remote input terminal When the head unit is turned on it will turn on the Epicenter amplifier Alternatively the GTO signal sense feature can be used to gently turn on the Epicenter ampl...

Страница 10: ...10 Installation Manual Factory Radio Speaker level output ACR 3 Subwoofers System 1 Adding Subwoofers to a Factory Radio Chapter 3 Hookup Diagrams...

Страница 11: ...er Factory Radio ACR 3 Master Expansion Bus Mode Source Expansion Bus Mode Link Speaker level output In Out System 2 Using the Expansion Bus to run multiple Amplifiers linked to one Master set of Cont...

Страница 12: ...ACR 3 Master Link 180 Source 0 Speaker level output System 3 Using the Expansion Bus to run two Amplifiers to double the power into one Subwoofer Note In this example the subwoofer impedance should no...

Страница 13: ...e drilling any holes take every precaution to prevent dam age to fuel lines power and other electrical wiring hydraulic brake lines and other systems that might compromise vehicle safety 5 Always moun...

Страница 14: ...l input plug using the correct polarity It is critical that the audio output you use is full frequency range so the factory rear speaker wires would gener ally be the optimum choice Connecting to the...

Страница 15: ...their holders followed by removing the circuit board and rotary control knob from the bracket Carefully drill a 9 32 hole in the dashboard for the control a 1 8 hole for the lock tab and two 13 64 hol...

Страница 16: ...man an ex Royal Marine Com mando called Tiny and he insisted that these be called hexagonal wrenches and not hex keys or Allen Keys then so be it The top lid must be removed to gain access to the con...

Страница 17: ...pluses the impedance is 1 8 1 8 2 8 Then take the inverse or 8 2 4 Often the real world is more complicated than theory and for speak ers this is the case An eight Ohm speaker is not eight Ohms at all...

Страница 18: ...as wire gauge 4 or thicker Thinner wire may cause an overheating hazard due to the large currents involved 3 Remote Power Input Terminal This screw terminal connects to the 12V remote trigger output o...

Страница 19: ...utput These two RCA connectors allow multiple Epicenter amplifiers to be used in a system with one as a Master source unit whose controls can affect all other Epicenter amplifiers in line A switch in...

Страница 20: ...20 Installation Manual Control Panel Features 10 11 12 13 14 15 16 19 20 17 18 Chapter 5 Features...

Страница 21: ...oned in the table are for the internal blue glow from behind the heatsink area and not the power LED which is green You might not notice the subtle blue glow at first unless you are in the dark or the...

Страница 22: ...kers and yet lots of source material forces the speakers to play lower than is good for them The net result is wasted amplifier power and damaged speakers The AudioControl PFM filter is a programmable...

Страница 23: ...level output a preamp out to the expansion bus RCA input of the next Epicenter amplifier set to Link This line level output signal is affected by all the controls of the first Epicenter amplifier Link...

Страница 24: ...sinewave at 1 dBFS If you do not have such a test signal choose uncompressed full Adjusting the System volume music in the region of interest This is a subwoofer am plifier so the region of interest...

Страница 25: ...lue mentioned in the table is the blue glow from within near the heatsink area and not the Power LED b If the problem code indicates a short circuit check the speaker wiring and check that the speaker...

Страница 26: ...level 5 Speaker Buzzing or Crackling at high volume a Reduce any preamplifier equalizer low frequency boost b Check the Epicenter s Source Clip LED is not on c Check the Epicenter s Protection LED is...

Страница 27: ...Gauge 4 to 0 Gauge Fuse Rating 3 X 40 Amps Crossover 24 dB Octave Linkwitz Riley Adjustable From 30 250 Hz PFM Subsonic Filter 18 dB Octave Selectable 16 32 Hz Weight 6 6 lbs Dimensions 12 W X 7 95 D...

Страница 28: ...Level Conversion Remote In Left Right Left Right Power Protection 12V Ground On Off GTO Signal Sense TM On Off ACR 3 Remote Level Control Variable Crossover PFM Subsonic Expansion Bus Mode Source Lin...

Страница 29: ...29 The Epicenter 1200 Dimensions Chapter 8 Specifications...

Страница 30: ...30 Installation Manual The Epicenter 600 Dimensions Chapter 8 Specifications...

Страница 31: ...n intermittent prob lem or all the time 3 A return street address No PO Boxes please 4 A daytime phone number in case our technicians have a ques tion about the problem you are having or if they are j...

Страница 32: ...tion The warranty only applies to the original purchaser from an authorized AudioCon trol dealer Note Products purchased from unauthorized dealers are not covered under warranty 3 If an authorized Aud...

Страница 33: ...make no warranty of merchantability or fitness for any particular purpose Also neither we nor anyone else who has been involved in the development or manufacture of the unit will have any liability of...

Страница 34: ...34 Installation Manual Favorite Settings Chapter 11 Complementary Doodle Pages System System System...

Страница 35: ...35 Chapter 11 Complementary Doodle Pages System System System...

Страница 36: ...Installation Manual PN 913 134 0 Rev A The End...

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