Soundstream Technologies HR 2, HR 4 User Manual

HUMAN REIGN

HR 2
HR 4

Owner’s Manual

and

Installation Guide

Congratulations!

You now own the Soundstream Human Reign amplifier, the product of an
uncompromising design and engineering philosophy. Your Soundstream Human
Reign amplifier will outperform any other amplifier in the world.

To maximize the performance of your system, we recommend that you
thoroughly acquaint yourself with its capabilities and features. Please retain this
manual and your sales receipt for future reference.

Soundstream amplifiers are the result of American innovation and the highest
quality control standards. When properly installed, they will provide you with
many years of listening pleasure. Should your amplifier ever need service or
replacement due to theft, please record the following information which will help
protect your investment.

Model and Serial #

Dealer's Name

Date of Purchase

Installation Shop

Installation Date

C A U T I O N !

Prolonged listening at extremely high levels may result in hearing loss.
Even though your new Soundstream Human Reign amplifier sounds
better than anything you've ever heard, exercise caution to prevent
hearing damage.

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Table of Contents

Design Features
Amplifier Diagram
Crossover and Phase Adjustments
Hawkins Bass Control™ Theory and Use
Installation: Wiring
Installation: Mounting
Installation: Level Setting
Protection Circuitry and Troubleshooting
Service and Specifications

p 4 -5
p 6 - 9
p 10
p 11 -12
p 13-14
p 15
p 16
p 17
p 18

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DESIGN FEATURES

RUBI™(Rapid-Use Branched Impulse) This new proprietary power supply
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 then reproducing low frequencies. Also, greater reserve
gate power is stored for low voltage conditions that occur during extreme
conditions.

STACT™(STabilized Apex Current Topology) 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 inverted
channels. In the STACT design, inversion is done at the power amplifier drive
stage. Since the fully symmetrical power amplifier produces no even-harmonic
distortion itself and all preamplifier circuitry is run completely in-phase, no even
harmonic distortion phase reversal occurs.

Trident™ 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 thermal rollback or shuts the
amplifier down in extreme thermal conditions.

Hawkins Bass Control - Fully adjustable subwoofer equalization circuit
providing frequency and boost(“Q”) adjustment for optimum subwoofer
performance. A frequency tracking subsonic filter protects woofers from
potentially harmful low frequency information and maximizes output in a usable
range.

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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-on pops. The turn off process is reversed:
Amplifier section turns off first, followed by the power supply.

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 distributed
between primary and secondary power supplies, providing greater dynamics
and improved RF filtering.

Chassisink™ All transistors are ideally located and sandwiched between the
circuit board and the heatsink to provide cool efficient amplifier operation.

Differentially Balanced RCA Input eliminates ground loop related noise in
the audio.

Continuously Variable Crossover Network : 12dB/Octave highpass
crossover variable from 50 to 200 Hz and 24dB/Octave lowpass crossover
variable from 40 to 160 Hz.

Flexible Input Level Control allows 300 mV to 5 V input sensitivity.
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, Balanced
Line, Speaker and Power wiring.

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- HR 2 -

Front View

Top View

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