Installation manual

Ground option switch. All of the above would suggest that we want total
isolation between signal ground and power ground. In most cases you do. But
occasionally (and with certain brands of head units and amps who will remain
mentionless here), it is necessary to actually reduce the amount of isolation
which we worked and slaved and strived to achieve with our optically isolated
power supply.
Inside the ESP-2 (see why this is in the installers-only section) is a 3-
position slide switch. In position 1 (all the way to the LEFT), it provides total
isolation — infinite ohms with an optical isolator. In the center position, you
get 200 ohms of isolation. In the almost-never-used (except with —oops we
almost said that brand name) far RIGHT position 3, the signal and power
supply grounds are combined. Use the switch as a last resort. Alternator
whine can almost always be cured with proper grounding practices
MISCELLANEOUS
TROUBLESHOOTING NOTES
• The LED on the dashboard Restoration Control will not light if the cable or
LED wires are shorted anywhere.
• The Control Knob won’t do zip if the cable is shorted, violated or partially
disconnected.
• Make sure that the THRU connections haven’t gotten mixed up with the
OUTPUTs — you won’t get any SPATIAL RESTORATION effect out of them.
• The ESP-2 won’t amaze you and your friends unless you pull the knob out
to turn it on.
• The ESP-2 does not work with the Epicenter dashboard remote.
A BRAZEN PLUG FOR OTHER
AUDIOCONTROL PRODUCTS
If you like the ESP-2, you’ll love:
• The EQX
tm
, a compact, 2-channel, audiophile-grade, digital-ready 13-band
equalizer, line level preamplifier, bridging adaptor and programmable elec-
tronic crossover. Winner of the Autosound Grand Prix Award for Best Equal-
izer (in 1987, 1989 and 1990) as well as many other industry honors.
• The EQL
tm
, 13-band equalizer with variable gain input line preamplifier.
The same ultra-handy 6-band half-octave bass equalizer and 7-band octave
stereo equalizer as the EQX. 1988 and 1991 Equalizer of the Year
• The EQT
tm
, an amazing THIRD-OCTAVE mono equalizer that gives you
the greatest possible tonal control over the entire frequency range. Thirty
(count’em) 30 separate bands with Constant Q circuitry which minimizes
adjacent band interaction. Are your ready for this? The EQT has won over a
dozen awards and recognitions.
• The legendary, car-shaking, THE EPICENTER just got better! More Bass
Louder! That’s the new Epicenter. It puts the “woof” back in woofer. With good
speakers, its effect is astonishing. Ask for a demo at your AudioControl dealer.
• The 2XS
tm
, 2-way 18dB/octave programmable electronic crossover with 18dB/
octave subsonic filter, output gain adjustment and bridging adaptor. (2 more
awards.)
• The 4XS
tm
. This is more than just a double 2XS. It has so many features, we’d
need another whole page to describe them. Yes, it is a 4-channel 2-way or
2-channel 3-way crossover with non-fading bass. But it allows up to five different
frequency parameters to be customized for multi-speaker, multi-amp systems. If
you’re into serious sound, check this one out. This gem has brought home
Crossover of the Year three years in a row.
• The Model 11
tm
, is our Image Amplifier for center channel applications. It is
an ESP-2 plus provides a true center channel; amplified!
Each of these components will deliver significant improvements in the sound of
any car system and are part of the AudioControl Performance Match system. Check
with your AudioControl dealer for the juicy details.
©1998 AudioControl. All rights reserved.
AudioControl, The Epicenter, EQX, EQL, EQT, ESP-2, Model 11, 2XS, 4XS
and Making Good Stereo Sound Better are trademarks of the
AudioControl Division of Electronic Engineering and Manufacturning, Inc.
- page 15 - - page 14 -
ESP-2
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
All specifications are at 14.4 volts DC
Total Harmonic Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.03%
Signal to Noise Ratio (full output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -110dB
Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 KOhms
Output Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Ohms
Maximum Output Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.5 volts
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.5dB: 10Hz - 50KHz
Power Supply . . . . . . . . . . . . . . . . . . . Transformer coupled, switching DC/DC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . converter with optical isolation
Current Draw (maximum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mA
Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.20"H x 4.6"W x 5.7"D
Ground Isolation Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes
Country of Origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S.A