PCX 1250

6

7

8

9

10

11

1

 

 

 

 

12

2 3 4 5

1.Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums for proper amplifier cooling.

2.HP/LP/FULL Switch: Select the desired crossover setting, HP/LP/FULLfor the speaker output signal of the front channel.

3.Freq. Control: Move this detented control in a clockwise rotation to adjust the front crossover fre- quency from 30Hz to 4kHz.

4.Subsonic Filter Freq. Control: Move this detented control in a clockwise rotation to adjust the subsonic crossover frequency from 5Hz to 80Hz.

5.RCAInputs: Connect the RCAcables from the head-unit, video unit, or line driver to these RCA connectors.

6.Gain Control: Use this control to match the output level of the source unit to the input of the amplifier.

7.-12dB:For use with high level inputs (4V up to 12V). Push this switch in to attenuate the input by 12dB.

8.QBASS™ 0 to +12dB

9.Output Crossover HP/LP/FULLSwitch: Select the desired crossover setting, HP/LP/FULLfor the output signal of the RCAoutput.

10.Output Crossover Freq. Control: Move this detented control in a clockwise rotation to adjust the front crossover frequency from 30Hz to 4kHz.

11.RCAOutputs: RCAoutputs provide HP/LP/Full; 30-4KHz to another amplifier.

12.Speaker Output Connections: Plug the Speaker PowerLock™ connector in here.

1

2

3

 

1.Thermal Management Intake/Exhaust Plenums

2.Power / Ground PowerLock: After you have securely connected your power and ground wires, plug in the Power/Ground PowerLock connector here.

3.Power indicator: A green light indicates that the amplifier is on.

PCX 1500

 

7

8

9

 

 

6

10

11

12

 

 

1

 

 

 

 

 

 

 

 

 

 

3

5

2

4

1.Cooling Plenums: Maintain a minimum 2” clearance around cooling plenums for proper amplifier cooling.

2.Subsonic Filter Freq. Control: Move this detented control in a clockwise rotation to adjust the front crossover frequency from 5Hz to 80Hz.

3.HP/LP/FULL Switch: Select the desired crossover setting, HP/LP/FULL for the speaker output signal of the front channel.

4.Freq. Control: Move this detented control in a clockwise rotation to adjust the front crossover fre- quency from 30Hz to 4kHz. (See Crossover frequency chart pg. 16)

5.RCAInputs: Connect the RCAcables from the head-unit, video unit, or line driver to these RCA connectors.

6.QBASS 1 & QBASS 2 Freq.: Use these switches, QBASS 1 & QBASS 2 to program the QBASS PLUS™ circuit frequency.

6.-12dB Input Attenuation: Push this switch ‘IN’ for high voltage input (4V-12V) capability. This button pushed ‘IN’ must be used for speaker level input on common ground head-units or for high voltage line drivers.

8.Freq. Control: Move this detented control in a clockwise rotation to adjust the front crossover frequency from 30Hz to 4kHz.

9.Output Crossover Control: HP/LP/FULL, Move this detented control in a clockwise rotation to adjust the front crossover frequency from 30Hz to 4kHz. (See Crossover frequency chart pg. 16)

10.Gain Control: Use this control to match the output level of the source-unit to the input of the amplifier

11.RCAOutputs: Left and right RCAoutputs provide HP/LP/Full;

30-4KHz to another amplifier.

12.Speaker Output Connections: Plug the Speaker PowerLock™ connector in here.

1

2

3

4

5

 

 

 

 

1.Forced Air Thermal Management Intake/Exhaust Plenums

2.QBASS PLUS™: level control up to 18dB.

3.QBASS REMOTE™ plug in: Plug in the data cable from the optional QBASS REMOTE™ dash mount level control here. (This will bypass the amplifier’s on board QBASS™ control)

4.Power / Ground PowerLock: After you have securely connected your power and ground wires, plug in the Power/Ground PowerLock connector here.

5.Power indicator: A green light indicates that the amplifier is on.

10

11

Page 7
Image 7
Precision Power PCX1250 manual Qbass 0 to +12dB

PCX1250 specifications

The Precision Power PCX1250 is an impressive monoblock amplifier designed for both car audio enthusiasts and professional sound installers. With its robust construction and state-of-the-art technology, it stands out in the competitive world of automotive audio equipment.

At the core of the PCX1250 is its powerful 1250-watt maximum output, providing ample power to drive even the most demanding subwoofers. The amplifier's class D topology ensures high efficiency, minimizing heat generation while maximizing audio performance. This means that users can enjoy loud, clear sound without worrying about overheating during extended use.

One of the standout features of the PCX1250 is its variable low-pass filter, which allows users to customize the sound to their preference. This filter plays a critical role in enhancing the bass response and ensuring that the subwoofer produces clean, undistorted low frequencies. The low-pass filter can be adjusted between 40Hz and 200Hz, giving users the flexibility to dial in the perfect setting for their specific system.

Convenience is another hallmark of the PCX1250. The amplifier is equipped with adjustable gain control, which lets users set the input sensitivity to match the output of their head unit or other source. This helps to prevent distortion and ensures that the audio maintains its clarity, even at higher volume levels.

Additionally, the PCX1250 features a built-in thermal protection circuit and a short-circuit protection system, which safeguard the amplifier from damage under adverse conditions. The power and ground terminals are designed for easy installation, with substantial gauge inputs that can handle high current levels without compromising performance.

In terms of design, the PCX1250 boasts a sleek and modern aesthetic, featuring a durable aluminum casing and stylish accents. Its compact size allows for flexible installation options, fitting comfortably in various vehicle layouts without sacrificing performance.

Overall, the Precision Power PCX1250 is an exemplary amplifier that combines power, performance, and versatility. With its robust features and cutting-edge technology, it is an excellent choice for anyone looking to elevate their car audio experience. Whether driving a single subwoofer or a full sound system, this amplifier delivers impressive sound quality, making it a top pick among audio aficionados.