Hafler manual P7000 Functional Block Diagram

Page 15

P7000 FUNCTIONAL BLOCK DIAGRAM

 

 

 

 

 

 

 

Output

B+

 

 

 

Current Mirror

Driver Cascode

Q30, Q31,

+94V

 

XCard

 

Q32, Q33

 

 

 

 

Q104, Q105

Q9, Q10

 

 

 

 

 

 

 

 

 

Crossover

 

 

 

 

 

 

U7A

 

 

 

 

 

 

Level

 

 

DIABLO

 

 

 

Input Buffer

 

R73, CR16

 

 

Positive Input

Control

U2a

 

Q17, Q18

 

 

R24

 

 

 

Buffer

 

 

Bias

 

 

 

 

 

 

 

U1A

 

 

 

 

 

 

 

 

Adjust

 

 

 

 

 

 

 

 

 

 

 

 

R136

 

 

 

 

 

 

 

Local

 

 

 

 

 

 

Feedback

 

Balanced

 

CMRR

Differential Amp

Feedback

 

Output

 

Adjust

 

Signal

 

R8

Q6, Q7

Network

 

 

Negative Input

 

DC Offset

 

 

 

 

 

Integrator

 

 

 

 

Buffer

 

 

 

 

 

 

U2B, C22, C21,

 

 

 

 

U1B

 

 

 

 

 

 

R11

 

 

 

 

 

 

 

 

 

 

 

Crossover

 

 

 

 

 

 

U7B

 

 

 

 

 

 

XCard

Soft Start

Current

Driver Cascode

Output

 

 

Switch Delay

Source

Q11, Q12

B–

 

 

Q1, C29, R13

Q103

 

Q40, Q41,

–94V

 

 

 

 

 

Q42, Q43

 

 

 

 

 

 

– 12 –

Image 15
Contents Trans Follow Instructions R F O R M a N C E Specification S Technical Reference InstallationB L E O F C O N T E N T S OperationT R O D U C T I O N Unbalanced Input InstallationBalanced Input 1/4 Tip Ring Sleeve Balanced Input XLRTwo-Channel Stereo Dual MonoBridged Mono E R a T I O N Stereo/Bi-AmpNormal/Bridged Short SignalClipping ThermalC H N I C a L R E F E R E N C E Field Service ConsiderationsPC B O a R D L a Y O U T Page R T S L I S T CER-106SM P7000 Functional Block Diagram Transnova Implementation Circuit OperationFan Speed Regulation Thermal Protection Wire Color Function Terminal Amplifier Module ReplacementBuilding Custom Xcards High Pass Low Pass Full RangeButterworth Alignment Q = Resistor ChartSE R V I C E P O L I C Y a N D LI M I T E D W a R R a N T Y

P7000 specifications

The Hafler P7000 is a professional power amplifier renowned for its robust performance and reliability in live sound and studio applications. A cornerstone of the Hafler brand, the P7000 embodies advanced technology and engineering, making it a popular choice among audio professionals.

One of the standout features of the P7000 is its high power output. It delivers up to 700 watts per channel at 4 ohms, providing ample headroom for demanding audio environments. This powerful output makes it suitable for driving large loudspeakers or multiple speaker systems, ensuring clear and dynamic sound reproduction even at high volumes.

The P7000 utilizes a class AB amplifier design, combining the benefits of class A and class B architecture. This design choice ensures low distortion levels while maintaining efficient operation. As a result, users can expect a warm and natural sound with low signal degradation, making the amplifier ideal for critical listening environments.

In terms of build quality, the Hafler P7000 is constructed with durability in mind. The chassis is made from robust materials that can withstand the rigors of frequent transport and use in various settings, from professional studios to live concert venues. Additionally, the amplifier features a well-ventilated design, minimizing overheating and ensuring reliability during extended operation.

The P7000 also includes advanced protection circuitry to safeguard against overload and short circuits. This feature not only protects the amplifier itself but also the connected speakers, providing peace of mind during high-energy performances. Furthermore, the amplifier incorporates a soft start circuit, which gradually ramps up power to the speakers, preventing sudden jolts that could cause speaker damage.

Connectivity is another key aspect of the Hafler P7000. It offers a variety of input options, including XLR and 1/4" TRS connectors, making it compatible with numerous audio sources and easy to integrate into any existing setup. Balanced inputs help reduce noise and interference, ensuring clean signal transfer over long cable runs.

With its combination of powerful output, reliable performance, and versatile connectivity, the Hafler P7000 stands out as a professional-grade amplifier. Whether used in a studio setting or live sound application, it provides audio professionals with the tools they need to achieve exceptional sound quality and consistency.