I was asked about my old Bronco audio system
so here goes. As I mentioned elsewhere, It's been retired since the vehicle was sold and I haven't purchased another vehicle it will fit in nicely. Mostly because of the rear subs.
The toys included:
Head unit: Sony ES XR-C900 - Cassette Tape Deck/CD controller
Features:
Laser Amorphous tape head (never needs demagnetizing), Dolby B&C, Copper-shielded Chassis, +15/-15vdc converter, Diversity FM Tuner, Motorized Face w/3 viewing angles, Dual-Illumination, 4V Pre-Outs F/R/Sub, CD/MD/DSP/TV control via UniLink. Wired & Wireless remotes.
CD Changer - Sony CDX-838
Amps:
Amp, Front - Nakamichi PA300 II - 75W x 2 @ 4Ω
Specifications:
2 x 75W @ 4 ohms (0.003% THD)
Power Bandwidth : 5-50,000 Hz (both channels drive, 4 ohms, 0.1% THD) Yes, 5 Hz.
Total Harmonic Distortion 0.003% (4 ohms, 1 kH, 75W)
Frequency Response : 5-50,0000 Hz +- 1 dB (with "Direct" input sensitivity controls at minimum), 50-50,000 Hz +- 1 dB (with "Low Cut" input, input sensitivity controls at minimum)
S/N Ratio : Better than 115 dB (HF A-TD, at rated power, input sensitivity controls at minimum)
Damping Factor : Greater than 1,000 (4 ohms, 1 kHz)
Input Sensitivity/Impedance : 0.2 - 0.8 V Variable / 50 k ohms
Stereo Separation : 85 dB (4 ohms, 1 kHz)
Power Source : 14.4 V DC negative ground (10.8 - 15.6 V allowable)
Power Consumption (Max) : 27 A (both channels driven, 4 ohms, 75 w x 2)
(Music) : Approx. 10 A (4 ohms)
Load Impedance : Above 4 ohms
Dimension : 320 x 52 x 16mm WHD
Amp, Rear - Nakamichi PA200 - 30w x 2 @ 4Ω
Amp, Sub - Alpine 3545 - not a sub amp, just used as one.
Specifications:
RATED @ 12 VOLTS @ 0.08% THD
250 x 2 @ 4 Ohms
350 x 2 @ 2 Ohms
700 x 1 @ 4 Ohms MONO
Frequency Response ~ 10 Hz to 50 Khz
Signal/Noise Ratio ~ 110 dBA
Slew Rate ~ 20 V/us
Fully Discrete, Complimentary Circuitry
STAR Circuitry
Forced Air Cooling system
Speakers:
Front - Nakamichi SP10 (tweeter), SP50 (5") with passive Nakamichi 2 position crossover
Rear - Boston Acoustics 6 1/2" two way with passive crossover
Subs - (2) Gold Sound 15", Dual voice coil 8Ω, coils wired in parallel for 4Ω each speaker, 2 speakers run as stereo in a custom made 48" x 30" x 12" internally ported box. (or was it 48x32x10 sorry its been a while, maybe I'll measure it tomorrow). Made from 3/4 " ply.
Crossover - Nakamichi EC200 active sub crossover - controls crossover frequency and gain for each side of crossover independently
Equalizer - Alpine 3401 - 7 band parametric EQ
Custom Controller - provides 2 sec turn on delay (to allow deck to turn on and settle before amps power up), knob to control variable 1 sec to several minute turn off delay, individual bypass switches to control each amp and passive 4 way volume control.
The install:
The front amp was mounted under the driver's seat, the rear amp in the wall panel behind the driver's door. The sub amp attached to the left side of the sub box. Front speaker crossovers in the front kick panels, rear ones in the walls near rear speakers. The front tweeters were above the arm rests, woofers in stock speaker locations. The rear ash trays were used as tweeter openings and rear woofers were below them. The alternator was replaced with larger rebuilt Ford unit and required different belt. Had to relocate the stock bracket as I recall too.
If you have any questions about my system or building yours I'd be glad to help.
The toys included:
Head unit: Sony ES XR-C900 - Cassette Tape Deck/CD controller
Features:
Laser Amorphous tape head (never needs demagnetizing), Dolby B&C, Copper-shielded Chassis, +15/-15vdc converter, Diversity FM Tuner, Motorized Face w/3 viewing angles, Dual-Illumination, 4V Pre-Outs F/R/Sub, CD/MD/DSP/TV control via UniLink. Wired & Wireless remotes.
CD Changer - Sony CDX-838
Amps:
Amp, Front - Nakamichi PA300 II - 75W x 2 @ 4Ω
Specifications:
2 x 75W @ 4 ohms (0.003% THD)
Power Bandwidth : 5-50,000 Hz (both channels drive, 4 ohms, 0.1% THD) Yes, 5 Hz.
Total Harmonic Distortion 0.003% (4 ohms, 1 kH, 75W)
Frequency Response : 5-50,0000 Hz +- 1 dB (with "Direct" input sensitivity controls at minimum), 50-50,000 Hz +- 1 dB (with "Low Cut" input, input sensitivity controls at minimum)
S/N Ratio : Better than 115 dB (HF A-TD, at rated power, input sensitivity controls at minimum)
Damping Factor : Greater than 1,000 (4 ohms, 1 kHz)
Input Sensitivity/Impedance : 0.2 - 0.8 V Variable / 50 k ohms
Stereo Separation : 85 dB (4 ohms, 1 kHz)
Power Source : 14.4 V DC negative ground (10.8 - 15.6 V allowable)
Power Consumption (Max) : 27 A (both channels driven, 4 ohms, 75 w x 2)
(Music) : Approx. 10 A (4 ohms)
Load Impedance : Above 4 ohms
Dimension : 320 x 52 x 16mm WHD
Amp, Rear - Nakamichi PA200 - 30w x 2 @ 4Ω
Amp, Sub - Alpine 3545 - not a sub amp, just used as one.
Specifications:
RATED @ 12 VOLTS @ 0.08% THD
250 x 2 @ 4 Ohms
350 x 2 @ 2 Ohms
700 x 1 @ 4 Ohms MONO
Frequency Response ~ 10 Hz to 50 Khz
Signal/Noise Ratio ~ 110 dBA
Slew Rate ~ 20 V/us
Fully Discrete, Complimentary Circuitry
STAR Circuitry
Forced Air Cooling system
Speakers:
Front - Nakamichi SP10 (tweeter), SP50 (5") with passive Nakamichi 2 position crossover
Rear - Boston Acoustics 6 1/2" two way with passive crossover
Subs - (2) Gold Sound 15", Dual voice coil 8Ω, coils wired in parallel for 4Ω each speaker, 2 speakers run as stereo in a custom made 48" x 30" x 12" internally ported box. (or was it 48x32x10 sorry its been a while, maybe I'll measure it tomorrow). Made from 3/4 " ply.
Crossover - Nakamichi EC200 active sub crossover - controls crossover frequency and gain for each side of crossover independently
Equalizer - Alpine 3401 - 7 band parametric EQ
Custom Controller - provides 2 sec turn on delay (to allow deck to turn on and settle before amps power up), knob to control variable 1 sec to several minute turn off delay, individual bypass switches to control each amp and passive 4 way volume control.
The install:
The front amp was mounted under the driver's seat, the rear amp in the wall panel behind the driver's door. The sub amp attached to the left side of the sub box. Front speaker crossovers in the front kick panels, rear ones in the walls near rear speakers. The front tweeters were above the arm rests, woofers in stock speaker locations. The rear ash trays were used as tweeter openings and rear woofers were below them. The alternator was replaced with larger rebuilt Ford unit and required different belt. Had to relocate the stock bracket as I recall too.
If you have any questions about my system or building yours I'd be glad to help.
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