Hafler

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Frequently Asked Questions

• Where is the Hafler dh-220 power amplifier located?

  THE DAVID Hafler COMPANY 5910 Crescent Boulevard, Pennsauken, New Jersey 08109 INTRODUCTION The Hafler DH-220 is a two channel audio power amplifier designed to the very highest performance standards. It is available either as a kit, or fully assembled.

• Is there any way to share Hafler documentation?

  We are however working hard at increasing the data on the web site and are encouraging folks to provide data that we can share. So if you have schematics, manuals or anything else that you believe would be of value to fellow Hafler and Dynaco enthusiasts, please send them our way. The following documentation is provided as reference only.

• How long has the Hafler amplifier been in use?

  "Hafler amps have been in my studios going on 20 years now. The lows are warm and the highs are smooth. The Hafler HA15 headphone amplifier delivers the same Hafler qualities that I have grown to trust."

• Is there a repair service for a Hafler?

  Hafler (Radial Engineering Ltd.) does not currently offer any form of repair service for products built before 2015 as we do not have access to parts. We kindly ask that you get in touch with your local repair center to see if they can assist by downloading one of the many documents made available on this site.

• When do you use the or instruction in Assembly?

  The OR Instruction. The OR instruction is used for supporting logical expression by performing bitwise OR operation. The bitwise OR operator returns 1, if the matching bits from either or both operands are one. It returns 0, if both the bits are zero.

• When to use the XOR instruction in Assembly?

  The XOR instruction implements the bitwise XOR operation. The XOR operation sets the resultant bit to 1, if and only if the bits from the operands are different. If the bits from the operands are same (both 0 or both 1), the resultant bit is cleared to 0.

• Which is the correct format for assembly logical instructions?

  Assembly - Logical Instructions. The processor instruction set provides the instructions AND, OR, XOR, TEST, and NOT Boolean logic, which tests, sets, and clears the bits according to the need of the program. The format for these instructions −. The first operand in all the cases could be either in register or in memory.

• What are the instructions for the dh-220 Audio Kit?

  Nothing hinders the essential purity of the audio signal. Those who use these instructions to assemble the DH-220 kit will find that the left and right audio modules (printed circuit and heat sink assemblies) are preassembled and pretested.