MODULE SHOWN INSTALLED IN A DH-200 WITH PC-1 DRIVER BOARD UPGRADE AND TESTED AT 10HZ 100 WATTS PER CHANNEL WITH NO FALSE TRIGGERING. AS REQUESTED, HAFLER DH-220 RELAY SPEAKER PROTECTION MODULE WITH TURN ON DELAY.
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*Has some signs of wear, i.e., scratches mainly to the top of the unit (see pics) Up for sale is a high-end stereo power amplifier from the reputable brand Hafler. This unit, model David Hafler DH-220, has been well-maintained and is in great working condition. It is a vintage piece that adds a classic touch to any audio setup. The amplifier is a unit type item and comes in a quantity of one. It was manufactured in the United States and is a great addition to any vintage audio and video collection. This piece is perfect for audio enthusiasts who appreciate the quality and reliability of vintage electronics.
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HAFLER DH-220 ULTIMATE UPGRADE KIT. Jfets incorporated are genuine Toshiba 2SK170 or 2SK117 devices with IDSS closely matched. If you know anything about these Jfets, I need not say anything else. High input impedance, high gain, tube like presence, and eerie low noise in listening tests makes it a no brainer.
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HAFLER DH-220 ULTIMATE UPGRADE KIT. Jfets incorporated are genuine Toshiba 2SK170 or 2SK117 devices with IDSS closely matched. If you know anything about these Jfets, I need not say anything else. High input impedance, high gain, tube like presence, and eerie low noise in listening tests makes it a no brainer.
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The David Hafler DH-220 Stereo Power Amplifier is a vintage audio unit made in the United States. This amplifier, with its original manual and box, is a sought-after collector’s item for vintage audio enthusiasts. With the Hafler brand known for its quality audio products, this unit is sure to deliver powerful and clear sound for any audio setup. Amp powers up and works great.
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I WAS ALWAYS FOND OF THE ORIGINAL HITACHI MOSFETS FOR THEIR STABILITY AND SOUND BUT WAS IN FOR QUITE A SURPRISE WHEN I INSTALLED THESE NEW MATCHED 16 AMP 200 VOLT 250 WATT DOUBLE DIE EXICON LATERAL MOSFETS IN A HAFLER DH-200.
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A proper restoration must replace all electrolytic capacitors on all boards. A proper rebuild requires a full recap of all PCBs. Parts for compete recap of all the electrolytic capacitors. Complete recap of all PCBs.
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The screws are included. Looking for more parts?. You can upgrade the original diodes but it's not usually necessary. Main filter capacitors are usually used to provide the positive and negative rails to the amplifier section, so one of them will appear to be wired backwards (with positive to chassis ground).
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