Phoenix Gold ZX475Ti Installation and operation manual

ZX475Ti Web Manual September 7, 1999

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ZXTi amp manual
Features 02
Specifications 03
Operational Details 04-05
System Design, PowerFlowtm System 06-07
System Design, Examples 08-15
Installation, Mounting 16
Installation, Power & Speaker Connections 17
Installation, Input Sensitivity & Bass Adjustment 18
Trouble-Shooting 19-20
Warranty Information 21
TABLE OF CONTENTS

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ZXTi amp manual
• TCCHtm Thermal Convection Cooled Heatsink. This proprietary design uses a variable speed
fan to ensure that the ZXTi keeps its cool when the music gets hot!
•High-current Triple Darlington output stage. This tried and true topology is the standard for
outstanding dynamic peak output performance
• TAIMtm Timed Acoustically Integrated Muting. Ensures dead silent turn on & off. No clicks, pops
or buzzes
• Tri-lineartm capability allows simultaneous stereo and bridged operation
•Output current sensing allows the ZXTi to automatically optimize the power supply and output
stage to reliably operate at impedances as low as 2 ohms bridged or 1 ohm stereo
• Intuitive crossover configuration switch assures easy initial setup
•24dB per octave, high pass or low pass crossover. Continuously variable from 40 Hz to 8 kHz front
and 40 Hz to 800 Hz rear
• Auxiliary outputs route high pass, low pass or full range signals to another amplifier
• Twin-Ttm Bass Boost circuit provides up to 18dB of boost at 45 Hz
• Superbritetm Tri-LED power-on indicator
• Independent Thermal and Overload protection LED indicators
• Custom formed chassis with unique Titanium finish
• 24kt gold plated power and speaker terminals
• 2-ounce copper, double-sided G10 glass-epoxy printed circuit boards
• Replaceable insulated mounting feet
•Audiophile grade capacitors and 1% tolerance metal film resistors throughout the audio path
• Optional LPL44tm Low Pass Level controller allows the driver to adjust bass volume from the
driver’s seat
• Optional RDDPtm Remote Diagnostic Display Panel uses two tri-color LED’s allowing the driver to
monitor the amplifier’s battery voltage, power-on, thermal and overload status
• Optional SDTtm Superior Digital Technology allows the driver to monitor the amplifier’s battery
voltage with a vacuum florescent display along with a tri-color LED indicating power-on, thermal
and overload status
FEATURES

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ZXTi amp manual
Continuous Output Power at 1% THD (Wrms):
ZX475Ti
Into 4 ohms Stereo @ 12.5 Vdc (IASCA/USAC) 18 x 4
Into 4 ohms Stereo @ 14.4 Vdc 75 x 4
Into 2 ohms Stereo @ 14.4 Vdc 150 x 4
Into 4 ohms Bridged @ 14.4 Vdc 250 x 2
Minimum Speaker Load, Bridged 2 ohms
Minimum Speaker Load, Stereo 1 ohm
Recommended Fuse Size, Stereo 4 ohms / Stereo 2 ohms / Bridged 60 / 80 / 80 amp
Continuous Current Draw @ Full Power * 60 amps
Peak Current Draw @ Full Power ** 85 amps
Dimensions, Chassis (inches) 15.00 L x 9.00 W x 2.25 H
Dimensions, Overall (inches) 16.00 L x 10.00 W x 2.25 H
Total Harmonic Distortion < 0.02 %
Signal to Noise Ratio (A-weighted) > 100 dB
Frequency Response +/- 1 dB, 20 Hz to 20 kHz
Bass Boost 0 to +18 dB @ 45 Hz
Crossover Frequency Range 40 Hz to 8 kHz
Crossover Slope 24 dB per octave
Input Sensitivity 200 millivolts to 6 volts
Input Impedance > 30 kohms
Input Voltage Range 0.2 volts to 6 volts
Power Supply Operating Range 10.5 Vdc to 15.5 Vdc
Typical current draw at idle < 3 amps
*Average continuous current draw when playing typical music material.
**Average peak current needed for musical peaks (<20ms) when playing typical music material.
Due to ongoing research and development, features, specifications and availability are subject to change without notice.
SPECIFICATIONS

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ZXTi amp manual
OPERATIONAL DETAILS
160
110
40 800
300
450
220

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ZXTi amp manual
OPERATIONAL DETAILS

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ZXTi amp manual
SYSTEM DESIGN

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ZXTi amp manual
SYSTEM DESIGN

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ZXTi amp manual
SYSTEM DESIGN examples
The front crossover frequency control determines the
XS62's highpass frequency independently of the XS124
and rear speakers.
The rear crossover frequency control determines the
XS124's lowpass frequency and auxiliary output's high-
pass frequency.
The auxiliary outputs send highpass signals to another
amplifier.
Use the LPL44 to control the XS124's volume from the
driver's seat.
* For single preamp headunits, set the input select
switch to FRONT. This allows signals from the front
inputs to reach the rear crossover without the use
of “Y” connectors.
Minimum bridged load is 2 ohms.
Minimum load per channel is 1 ohm.

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ZXTi amp manual
SYSTEM DESIGN examples
Minimum bridged load is 2 ohms.
Minimum load per channel is 1 ohm.
The front crossover frequency control determines the
XS130's highpass.
The bandpass signal for the XS84’s midbass is created
between the front and rear crossover frequency settings.
The rear crossover frequency control determines the
auxiliary output's lowpass frequency.
The auxiliary output sends lowpass signals to another
amplifier.
Use the LPL44 to control the auxiliary output's volume
from the driver's seat.
NOTE: If connecting tweeters to the front outputs, set
the frequency multiplier switch to X10. This multiplies
the front crossover's frequency range by a factor of ten.
The range becomes 400 to 8kHz.