Hafler DH-200 - Manual - Stereo Power Amplifier Kit - HiFi Engine.pdf

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11/12/2019
Hafler DH-200 - Manual - Stereo Power Amplifier Kit - HiFi Engine
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Hafler DH-200
Stereo Power Amplifier Kit
(https://www.hifiengine.com/add-a-review.php?nid=4776)
(5 reviews)
(https://www.hifiengine.com/add-
a-review.php?nid=4776)
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Hafler DH-200 - Manual - Stereo Power Amplifier Kit - HiFi Engine
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Specifications
Power output: 100 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 40kHz
Total harmonic distortion: 0.012%
Damping factor: 50
Input sensitivity: 1.5V
Signal to noise ratio: 100dB
Semiconductors: 26 x transistors, 8 x MOSfet, 24 x diodes, 4 x zener diodes, 1 x diode bridge
Dimensions: 5-1/8 x 16 x 10-1/2 inches
Weight: 26lbs
Downloads
instruction/owners manual
-
(https://www.hifiengine.com/hfe_downloads/index.php?hafler/hafler_dh-200.pdf)
Hafler Power Amplifiers
(https://www.hifiengine.com/manua (https://www.hifiengine.com/manua (https://www.hifiengine.com/manua
l_library/hafler/dh-120.shtml)
l_library/hafler/dh-220.shtml)
l_library/hafler/dh-500.shtml)
DH-120
DH-220
(https://www.hifiengine.com/manua (https://www.hifiengine.com/manua (https://www.hifiengine.com/manua
l_library/hafler/dh-120.shtml)
l_library/hafler/dh-220.shtml)
l_library/hafler/dh-500.shtml)
DH-500
https://www.hifiengine.com/manual_library/hafler/dh-200.shtml
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Hafler DH-200 - Manual - Stereo Power Amplifier Kit - HiFi Engine
Reviews
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reviews
Reviewed May 19th, 2019 by
Sage Freeman
(https://www.hifiengine.com/users/sage-freeman)
Clear and crisp but not harsh with plenty of slam! A solid investment at any price. Then upgrade
up the wahzoo if you like but I am enjoying mine just fine as is. Give it clean power and a clean
signal and you are set for a great time!
Reviewed Apr 29th, 2018 by
lappara
(https://www.hifiengine.com/users/lappara)
Allora le mie orecchie non mentono, considerato che siamo tutti d'accordo sulla qualità del
suono, è veramente un grande amplificatore.
Ciao a tutti dalla Sicilia
Reviewed Dec 20th, 2015 by
uzzy
(https://www.hifiengine.com/users/uzzy)
I have had mine since 1979 .. I have since bought another just in case any of the output
Mosfets go as the original Hitachi ones are getting very rare.
Plug it in and forget about it .. match it to the highest possible quality pre-amp you can afford (I
use an Audio Research SP9) and just enjoy .. it has dynamics and detail in spades and if I lost
mine I would be heart broken ..
Have tried many amplifiers over the years (including: Nakamichi, NAIM, Mark Levinson, Lux and
EAR) but the Hafler is to me unbeatable for its overall performance ... I had a minor repair done
by ex Naim engineer (i knocked off one of the transistors from the circuit board when changing
the RCAs to gold ones) .. he was a bit dumfounded I think at how well this amp performs
remarking nice amp when i picked it up after the repair.
It will drive below 4 ohms (e.g. Gale 401s and KEF 104/2 etc.) with ease. Gordon King in HiFi
News and Record Review said it was the finest amp he had heard but it was of course rubbished
in other HiFi Mags where the world began and ended with Linn/NAIM.
If you can find a good working example buy it - for the £200 (average second hand cost) it will
cost you, you can then sit back with a big smile realising you will have to pay over 5 times more
for something to get close to it or equal it .. and unlike a lot of other amps do not worry about
the impedance of your loudspeakers this baby works down to 2 ohms with panache ..
if you were to take the insides and put it in a nice fancy solid aluminium case perhaps it would
be taken more seriously .. a wonderful amplifier unequaled in its price range and well above ...
Reviewed Jan 29th, 2015 by
Sealtest
(https://www.hifiengine.com/users/sealtest)
https://www.hifiengine.com/manual_library/hafler/dh-200.shtml
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Hafler DH-200 - Manual - Stereo Power Amplifier Kit - HiFi Engine
Very nice amp with many upgrade options. This amp is also very affordable compared to other
amps which perform about the same.
Reviewed May 19th, 2014 by
megranat
(https://www.hifiengine.com/users/megranat)
A gutsy, revealing, very dynamic stereo, dual MOSFET power amplifier, suitable for driving the
best made and positioned loudspeakers that you can muster (with input from the cleanest
sources only or you will cower behind the couch at the nasties it exposes). Typical of all early
David Hafler amplifiers (pre and power) this was mainly sold in kit form, so open the lid and
check that yours has been built properly with high quality components and properly soldered
connections. These units are getting on now but, when I had mine in the late 1980s, with its
matching (but modified to my requirements with miltary spec capacitors, the balance control
bypassed and a crackle-free Teflon volume pot) DH-101 preamplifier, driving a pair of
sensational Stig Carlsson OA-51 two way loudspeakers placed against the wall, on timber stands
the results were spine-tingling. If you can get your hands on that kind of setup, enjoy and
treasure. A classic 100Wpc power amplifier that I still regret selling, along with its associated
gear to help pay for my first house!
Comments
DH-200 Revisions
(/Manual_library/Hafler/Dh-200.Shtml#Comment-9978)
Submitted by
mill1000
(https://www.hifiengine.com/users/mill1000)
on April 27th, 2014.
I've cataloged some design revisions made to the Hafler DH-200 here:
https://docs.google.com/spreadsheet/ccc?key=0AsxZwGvkuUaHdHBhTFN5T0JOd2l...
(https://docs.google.com/spreadsheet/ccc?
key=0AsxZwGvkuUaHdHBhTFN5T0JOd2lMT3RYR1dJSGxlWnc&usp=sharing)
My Wife Bought Mine For Our
(/Manual_library/Hafler/Dh-200.Shtml#Comment-4031)
Submitted by Christophe 21 on February 8th, 2011.
My wife bought mine for our Engagement in 1981... I've always it but it needs some
restoration !Thanks for sharing !
Christophe
This website is not affiliated with or sponsored by Hafler. To purchase DH-200 spares or accessories, please contact the
company via their website or visit an authorised retailer.
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