Soundstream Technologies 1002 - Manual (Page 3)

This new proprietary power sup-
ply topology eliminates “power sags” during low frequency reproduction
by rapidly increasing the duty cycle, stabilizing the power supply and
allowing it to deliver the power required when reproducing low frequen-
cies. Also, greater reserve gate power is stored for low voltage condi-
tions that occur during extreme conditions.
Reduces power supply
stress by 50%. Typical designs degrade the stereo image due to phase
reversal of even-order harmonic distortion that occurs between the in-
verted channels. In the STACT design, inversion is done at the power
amplifier drive stage. Since the fully symmetrical power amplifier pro-
duces no even-harmonic distortion itself and all preamplifier circuitry is
run completely in-phase, no even harmonic distortion phase reversal
occurs.
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 fluctuation occurs between electrical (turn-on lead)
and battery ground.
3. Thermal Protection: Puts the amplifier into thermal rollback or shuts
the amplifier down in extreme thermal conditions.
Hawkins Bass Control Fully adjustable subwoofer equalizaton circuit
providing frequency and boost (“Q”) adjustment for optimum subwoofer
performance. A frequency tracking subsonic filter protects woofers from
potentially
low frequency information and maximizes output in
a usable range.
Harmonic Bass Alignment The 2nd and 3rd order harmonic peaks
are critically aligned to fundamental peaks at low frequencies. This
produces tighter, more accurate bass reproduction.
Drive Delay II Amplifier section powers up 2 to 3 seconds after the
power supply eliminating turn-oncand off pops. The turn off process is
reversed: Amplifier section turns off first, followed by the power
4
Output Clipping Indicators indicate clipping on the output stage of
the amplifier. Monitoring the clipping indicators allows the user to achieve
maximum Sound Pressure Level without clipping the amplifier.
Dynamically Optimized Power Grid Power grid is evenly distrib-
uted between primary and secondary power supplies, providing greater
dynamics and improved RF filtering.
Auto High automatically matches the amplifier to the load
being driven allowing greater system flexibility, greater output, higher
reliability, and high efficiency 1 ohm (stereo) operation.
All transistors are ideally located and sandwiched be-
tween the circuit board and the to provide coo
fiea operation.
Differentially Balanced RCA Input eliminates grou
noise in the audio.
efficient
loop related
Fully Balanced DIN Input for professional-quality performance
and noise cancellation. The 6-pin DIN plug carries signal informa-
tion for Left and Right channels, audio ground, and 15 Vdc to operate
the Soundstream BLT BLT4 Balanced Line Transmitters.
Continuously Variable Crossover Networks: 12
variable from 70 to 160 Hz, and 24 crossovers vari-
able from 55 to 220 Hz.
Flexible Dual Input Level Control allows 300 to 5 V input sen-
sitivity Separate Left and Right level controls allow user to optimize
system level control.
Symmetrical Discrete Balanced Class A Drive Boards Auto-adjust
for linear performance while driving low impedance loads.
Removable Front Spoiler allows for stealth installation of RCA, Bal-
anced Line, Speaker and Power wiring.