OldSchool's Previous Audio Setup

Previous Audio Setup

System Description

Head Unit: Kenwood KDC-2006

EQ: Kenwood KGC-6042
Crossover Integrated with KGC-6042

Installed view of head unit/eq.

Amps:

Alphasonik PMA-2075i 75Wx2 (Front- Full range)

Alphasonik PMA-2050e 50Wx2 (Rear- Cut-off @ 100Hz)

¹ Alphasonik PMA-4050sp 50Wx4 (Subs- 30-150Hz, variable)

Use your Back Button to return from viewing the Amp images.

Speakers:

Infinity CS-4 Kappa Separates (Front)

Infinity CS-4 Kappa Separates (Rear)

¹ Hafler ML-84x2 8" Dual Voice Coil (Subwoofer x 2)

¹ Box fits under targa; 4X50w for the subs- 50w into each channel.

Power:

Head Unit & EQ to OEM 12V

Amps- Battery to Power Distribution Block- 4 gauge

Power Distribution Block to Amps- 8 gauge

Relays for all signal-sourced power ons
3 x 0.086 Farad Capacitors for 0.258 Farad total; rated @ 15VDC, 20VDC Max Surge.

Signal:

Head Unit pre-amp @ 1,800mV/ Input 10 k Ohms

EQ pre-amp @ 1,800mV/ Input 10 k Ohms, Output 600

Front/Rear Amps @ 100mV to 1,000mV/ Input 10 k Ohms

Sub Amp @ 500mV to 3V/ Input 10 k Ohms

Monster Cable MonsterLink patch cables

All Speaker leads- 14 gauge StreetWires

Amplifier Cooling:

Three (3) x 4" 12V exhaust fans for Amplifiers in hatch area.

Install completed 03/1997.

System Notes

The 1st head unit was an exceptional 5632CD by Clarion, which had originally replaced the failed Fujitsu Ten double-DIN OEM unit. The Clarion failed after 2.5 years of service & is sorely missed. The current Kenwood unit is on the chopping block it's so bad. I believe its low 1.8V pre-amp output is the primary source of frustration, but it just never provided satisfaction. 'Nuf said.

The Kenwood equalizer was a wholly different story. With its built in crossover & full-featured equalization features, it was truly a pleasure to install & configure. In conjunction with the Clarion head-unit, the Kenwood equalizer provided adjustment that easily tuned out the system's shortcomings.

The Infinity Kappa speaker sets with the Hafler sub-woofers, comprised a wonderful speaker system. I can easily recommend their use to anyone in the midst of a speaker buying decision. That such fidelity was achieved, with what most would consider 'small' drivers, speaks volumes for their efficiency.

The research, planning, & implementation weren't as easy as expected. But I'm happy it's done & like the way it sounds. Dreams of mid-bass occasionally have me considering some 6" in the doors somehow. I consider major surgery carefully, given the risks, but'll probably do it some day. DynaMat & some other sound deadening stuff has also been put on various panels- whenever they happened to be out & I was in the mood.....

Projects like this can be done @ home, and the results need not be surprisingly good.

There's Good Tips pages all over the Internet, here's a couple of them:
www.ofsoundmind.com
This site has good info on designing subwoofer enclosures using fiberglass.
You'll also find good general info on hi end audio.

Dan Gyoba's Supra Site
This site has great info on how Dan installed custom door enclosures using fiberglass.

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   Last Update: 06/13/2002
   Author: Lawrence K Anderson Jr
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