Soundstream Technologies Angina A4 Stereo Amplifier User Manual


 
Desiun
features of the
An&a
Desim
Features of the
An&a
SLA/SHTM
(Speaker Load Adapting
I
Subwoofer
Hyper-Efficient)
This
new dual function technology currently operates in two different ways
in
different models. In subwoofer applications the power supply tracks the
incoming audio signal and increases or decreases its own voltage level
to mirror the input. This design results in enormous low impedance, low
frequency stability and maximum efficiency, since no power is wasted
maintaining an unnecessarily high voltage level in the power supply.
High Level Input with terminal block connector will accept a speaker
level input. This allows the user to hook this amplifier up to any factory
headunit.
Auto Turn On allows the amplifier to turn on without the use of a re-
mote turn on wire, when the amplifier is using the high level inputs.
TridentTM
Protection Topology provides three types of protection:
1. Output protection against short circuits or improper loads.
2. Ground fault detection: Shuts down the amplifier when a significant
voltage
(>5
Volts) fluctuation occurs between electrical (turn-on lead)
and battery ground.
3. Thermal Protection: Puts the amplifier into shutdown in extreme
thermal conditions.
Remote Wire Output provides a
+12
volt output to turn on another
amplifier.
Line Level Output
will allow the use of another Soundstream amplifier
to run the front speakers, while still retaining the factory head unit. This
option is only available when the high level inputs are used.
Hawkins Bass
ControlTM
provides a focused subwoofer boost
(O-6dB
at 45Hz) and routes otherwise wasted amplifier power back to the au-
dible bandwidth.
Harmonic Bass
AlignmentTM
The 2nd and 3rd order harmonic peaks
are critically aligned to fundamental peaks at low frequencies. This pro-
duces tighter, more accurate bass reproduction.
Drive Delay
llTM
Amplifier section powers up 2 to 3 seconds after the
power supply eliminating turn-on pops. Turn off process is reversed:
Amplifier section turns off first, followed by the power supply.
ChassisinkTM
All transistors are ideally located and sandwiched be-
tween the circuit board and the heatsink to provide cool efficient ampli-
fier operation.
Differentially Balanced RCA Input eliminates ground loop related
noise in the audio path.
Variable Crossover Network 12dB/octave low pass filter that is se-
lectable at 60, 80 or 1
OOHz.
Symmetrical Discrete Balanced Class A Drive Board auto-adjusts
for linear performance while driving low impedance loads.
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