Bridgeable Trimode Operation Input Sensitivity Selector Variable Bass Boost (0 to +1 8dB) Continuously Variable High Pass and Low Pass Crossovers
Low and High Level Inputs Power and Protection LEDs Heavy Duty Set-Screw Style Terminals Chrome Plated Connections
Illuminated TORQUE Logo Remote Subwoofer Level Control
Class A/B Topology
A class A/B amplifier uses two groups of transistors and it is generally considered to be the best compromise of the
two classes put together. Class ‘A’ and class ‘B’. A pure class ‘A’ amplifier typically has an enormous amount of
current flowing through its output transistors with no audio signal. A pure class ‘B’ amplifier has NO current flowing
through its outputs with no audio signal. This eliminates virtually all of the crossover distortion that’s possible with
class ‘B’ amplifiers. A class A/B amplifier is much more efficient than a class ‘A’ but without the possible distortion
of a class ‘B’.
MOSFET PWM (Pulse Width Modulated) Power Supply
Metal–Oxide–Semiconductor Field-Effect Transistor is a transistor used for amplifying or switching electronic signals.
We use it in billions of them. In our computers, our telephones, game consoles, cars, electrical appliances and in this
case, our Amplifiers. They are found in systems where information is processed or stored. A MOSFET is basically an
electrical switch that allows the flow of electrical current. An electrical switch has two possible states, on or off.
The MOSFET performs its most important role in our D Class amplifiers by allowing or preventing the flow of power and
creating an efficient amplifier. The “Pulse Width Modulated” is a design that is significantly simplifies power
supplies. It controls the output voltage and current precisely by not only removing the output current sensing loss, but
also eliminating all secondary feedback circuitry. The PWM can increase efficiency, is lighter, smaller, can reduce
total cost, productivity and system reliability.
* Thermal and Speaker Short Protection
* 2 Ohm Stable Stereo Operation
* Soft Turn-On Circuit
* Remote Turn On / Turn Off Circuit
* Variable Input Gain Control
* Silver Anodized Heatsink
* Chrome Plated RCA Low Level and High Level Inputs
* LED Power and Protection Indicators
* Remote Subwoofer Level Control
Variable High-Pass Crossover
Speakers also reproduce sound based on high, low or mid-range frequencies. High pass crossovers are geared specifically
towards “highs” such as all size speakers, mid ranges and tweeters and in the same way as the low-pass crossover setting
specific sound specifications such as the bass, mid-range and high frequency reproduction.
Variable Bass Boost
So you have Bass Boost and Variable Bass Boost. The difference between the two is that with Bass Boost you either have
extra bass or you don’t. But with Variable Bass Boost you have the control of exactly how much bass you want to pump out
to your subwoofer(s). And this is what you get with the TRQ4.2400 Amplifier - Variable Bass Boost.
Low And High Level Inputs
The TRQ4.2400 has two different ways that you can get a signal into it. One is called Low level input and the other is
called High level input. A low level input is measured in voltages. It comes in the form of RCA outputs from the back of
your receiver and goes to the RCA inputs on your amplifier. A high level input is measure in wattages. It comes in the
form one positive and one negative wire from the back of your receiver to and goes to the input terminal of your
amplifier in the same wire form. Low-level (RCA) input wiring is preferred for best audio performance. Always use a
high-quality RCA cable for best audio performance. Note: Do not connect both the high level and low level inputs from
your receiver to your amplifier at the same time.
Speaker, Battery, Remote and Ground Terminals Plus Fuses
Variable Low-Pass Crossover
Subwoofers reproduce sound based on a number of different low-range frequencies. This process is called the crossover
effect and occurs because the vast majority of audio systems cannot cover the entire spectrum sufficiently to minimize
sound distortion and maintain an appropriate frequency ratio. In the case of our TRQ4.2400 amplifier, a variable
crossover is offered so that you, the listener, can have the ability to set the frequency at which the crossover occurs,
thereby setting specific sound specifications for the bass frequency reproduction.