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  3. Discontinued Pyramid Car Audio & Electronics
  4. Discontinued Pyramid Car Amplifiers
  5. Discontinued Pyramid 2-Channel Amplifiers

Discontinued Pyramid 2-Channel Amplifiers

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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

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You are currently viewing discontinued products.

Pyramid PB717X

1000W Max 2-Channel Arctic Series Car Amplifier

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Pyramid PB717X

1000W Max 2-Channel Arctic Series Car Amplifier

• 50W RMS x 2 Channels @ 4 ohm
• 75W RMS x 2 Channels @ 2 ohm
• Variable Bass Boost
• Variable Crossover Networks
• High/Low Level Inputs
• RCA Preamp Output

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• 50W RMS x 2 Channels @ 4 ohm
• 75W RMS x 2 Channels @ 2 ohm
• Variable Bass Boost
• Variable Crossover Networks
• High/Low Level Inputs
• RCA Preamp Output

Pyramid PB449X

Super Blue Series 2-Channel Amplifier

PB449X big DISCONTINUED
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Pyramid PB449X

Super Blue Series 2-Channel Amplifier

1000W 2 channel Super Blue Series Amplifier • 500W x 2 channel power output • variable gain control • remote turn on/off • bass and treble control • MOSFET power supply

5

1000W 2 channel Super Blue Series Amplifier • 500W x 2 channel power output • variable gain control • remote turn on/off • bass and treble control • MOSFET power supply

Pyramid PB718

1000W Max, Class A/B 2-Channel America Series Car Amplifier

PB718 big DISCONTINUED
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Pyramid PB718

1000W Max, Class A/B 2-Channel America Series Car Amplifier

• 500W Max x 2 Channels
• 1000W Max x 1 Channel Bridged @ 4 ohm
• Variable Electronic Crossovers
• Variable Bass Boost
• High/Low Level Inputs
• RCA Preamp Output

9

• 500W Max x 2 Channels
• 1000W Max x 1 Channel Bridged @ 4 ohm
• Variable Electronic Crossovers
• Variable Bass Boost
• High/Low Level Inputs
• RCA Preamp Output

Pyramid PB440X Super Blue Series

PB440X big DISCONTINUED
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Pyramid PB440X Super Blue Series

240W 2 channel Super Blue Series Amplifier • 120W x 2 channel power output • variable gain control • remote turn on/off • bass and treble control

1

240W 2 channel Super Blue Series Amplifier • 120W x 2 channel power output • variable gain control • remote turn on/off • bass and treble control

Pyramid PB1281X

PB1281X big DISCONTINUED
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Pyramid PB1281X

800 watt x 2 RMS Crystal Series Power Amplifier • 1600 watt Bridged • Gold Plated RCA Inputs

800 watt x 2 RMS Crystal Series Power Amplifier • 1600 watt Bridged • Gold Plated RCA Inputs

Pyramid PB580 Crystal Series

PB580 big DISCONTINUED
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Pyramid PB580 Crystal Series

800W 2 channel Crystal Series Amplifier • 400W x 2 channel power output • plexiglas top panel • fully adjustable electronic crossover • variable bass boost • digital VU level meters • MOSFET PWM Power Supply • LED power and protection indicators • Hi/Lo l

800W 2 channel Crystal Series Amplifier • 400W x 2 channel power output • plexiglas top panel • fully adjustable electronic crossover • variable bass boost • digital VU level meters • MOSFET PWM Power Supply • LED power and protection indicators • Hi/Lo l

Pyramid PB446X Super Blue Series

PB446X big DISCONTINUED
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Pyramid PB446X Super Blue Series

600W 2 channel Super Blue Series Amplifier • 300W x 2 channel power output • variable gain control • remote turn on/off • bass and treble control • MOSFET power supply

600W 2 channel Super Blue Series Amplifier • 300W x 2 channel power output • variable gain control • remote turn on/off • bass and treble control • MOSFET power supply

Pyramid PB444X Super Blue Series

PB444X big DISCONTINUED
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Pyramid PB444X Super Blue Series

400W 2 channel Super Blue Series Amplifier • 200W x 2 channel power output • variable gain control • remote turn on/off • bass and treble control • MOSFET power supply

400W 2 channel Super Blue Series Amplifier • 200W x 2 channel power output • variable gain control • remote turn on/off • bass and treble control • MOSFET power supply

Pyramid PB101 Artic Series

PB101 big DISCONTINUED
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Pyramid PB101 Artic Series

240W x 2 channel Artic Series Amplifier • gold plated RCA low level high impedance inputs • overload and short circuit protection

240W x 2 channel Artic Series Amplifier • gold plated RCA low level high impedance inputs • overload and short circuit protection

Pyramid PB945X Royal Red Series

PB945X big DISCONTINUED
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Pyramid PB945X Royal Red Series

1000W Royal Red Series 2-Channel Bridgeable Amplifier

1000W Royal Red Series 2-Channel Bridgeable Amplifier

Pyramid PB475 Power Series

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Pyramid PB475 Power Series

600W 2 channel Power Series Amplifier • 300W x 2 channel power output • chrome finish with clear top-view panel • adjustable Hi/Lo electronic crossover network • variable bass boost • remote turn on/off • soft turn on circuitry • Hi level MOLEX inputs • M

600W 2 channel Power Series Amplifier • 300W x 2 channel power output • chrome finish with clear top-view panel • adjustable Hi/Lo electronic crossover network • variable bass boost • remote turn on/off • soft turn on circuitry • Hi level MOLEX inputs • M

Pyramid PB545X Royal Red Series

PB545X big DISCONTINUED
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Pyramid PB545X Royal Red Series

800W Royal Red Series 4-Channel Bridgeable Amplifier

800W Royal Red Series 4-Channel Bridgeable Amplifier

Pyramid PB480 Crystal Series

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Pyramid PB480 Crystal Series

500W 2 channel Crystal Series Amplifier • 250W x 2 channel power output • fully adjustable electronic crossover • variable bass boost • digital VU level meters • MOSFET PWM Power Supply • LED power and protection indicators • Hi/Lo level gold plated MOLEX

500W 2 channel Crystal Series Amplifier • 250W x 2 channel power output • fully adjustable electronic crossover • variable bass boost • digital VU level meters • MOSFET PWM Power Supply • LED power and protection indicators • Hi/Lo level gold plated MOLEX

Pyramid PB445X Royal Red Series

PB445X big DISCONTINUED
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Pyramid PB445X Royal Red Series

600W Royal Red Series 2-Channel Bridgeable Amplifier

600W Royal Red Series 2-Channel Bridgeable Amplifier

Pyramid PB375 Power Series

No picture DISCONTINUED
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Pyramid PB375 Power Series

400W 2 channel Power Series Amplifier • 200W x 2 channel power output • chrome finish with clear top-view panel • adjustable Hi/Lo electronic crossover network with bass boost • remote turn on/off • high & low level inputs • Hi level MOLEX inputs • MOSFET

400W 2 channel Power Series Amplifier • 200W x 2 channel power output • chrome finish with clear top-view panel • adjustable Hi/Lo electronic crossover network with bass boost • remote turn on/off • high & low level inputs • Hi level MOLEX inputs • MOSFET

Pyramid PB175 Power Series

No picture DISCONTINUED
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Pyramid PB175 Power Series

240W 2 channel Power Series Amplifier • 120W x 2 channel power output • chrome finish with clear top-view panel • Hi/Lo electronic crossover with bass boost • remote turn on/off • high & low level inputs • gold plated RCA inputs • Hi level MOLEX inputs

240W 2 channel Power Series Amplifier • 120W x 2 channel power output • chrome finish with clear top-view panel • Hi/Lo electronic crossover with bass boost • remote turn on/off • high & low level inputs • gold plated RCA inputs • Hi level MOLEX inputs

Pyramid PB1836GX 2CH 2400w Royal Blue Series

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Pyramid PB1836GX 2CH 2400w Royal Blue Series

Description Coming Soon!

Description Coming Soon!

Pyramid PB575 Power Series

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Pyramid PB575 Power Series

700W 2 channel Power Series Amplifier • 350W x 2 channel power output • chrome finish with clear top-view panel • adjustable Hi/Lo electronic crossover network • variable bass boost • remote turn on/off • soft turn on circuitry • Hi level MOLEX inputs • M

700W 2 channel Power Series Amplifier • 350W x 2 channel power output • chrome finish with clear top-view panel • adjustable Hi/Lo electronic crossover network • variable bass boost • remote turn on/off • soft turn on circuitry • Hi level MOLEX inputs • M

 
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