H||H Audio V800

[joetama 5,000+ posts]

Hello,

 

I currently have a H||H (or HH or H&H depending on who types it) Audio V800. I know very little about this amplifier other than it sounds very nice and it is powerful. I acquired it from my father who used to use them for Pro-PA applications, he still has 8 of them sitting in a road case in his warehouse. I know they were made in the late 80s, they are MOS-FET, and H||H Audio is no longer in business.

 

I am looking for any information on the company, designer, designers other work, and or the amplifier. I really like this amplifier and am very curious about the history of it.

 

Oh, and I will post pictures of it later. It looks a bit ruff but still functions and sounds excellent.

 

Thanks,

Joe

Click to read more...

 

[joetama 5,000+ posts]

Here are the pictures of the one that I have...

 

[joetama 5,000+ posts]

Not even a comment?

Seriously?

 

[IamDeMan 5,000+ posts]

Looks beefity, but I have no clue about such things.

 

[joetama 5,000+ posts]

Beefy is an understatement...

I might post internal shots later...

 

[IamDeMan 5,000+ posts]

Beefy is an understatement...
I might post internal shots later...

 

[joetama 5,000+ posts]

Where did you find that?

 

[joetama 5,000+ posts]

Here the internal shots of mine.

Massive Iron core transformer...

 

[IamDeMan 5,000+ posts]

Where did you find that?

Google image search. Do you at least know what the output is on it?

 

[joetama 5,000+ posts]

200 Watts x 2 at 8 Ohms

400 Watts x 2 at 4 Ohms

800 Watts x 1 at 4 Ohms

I know H||H was purchased by Laney sometime in the late 80's early 90's. Also, H||H Audio amplifiers were designed for use in BBC recording studios. So I think they were designed and used with the original PMC monitors.

 

[IamDeMan 5,000+ posts]

200 Watts x 2 at 8 Ohms400 Watts x 2 at 4 Ohms

800 Watts x 1 at 4 Ohms

I know H||H was purchased by Laney sometime in the late 80's early 90's. Also, H||H Audio amplifiers were designed for use in BBC recording studios. So I think they were designed and used with the original PMC monitors.

Well that is definitely beefy. I bet my lines would like that //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[joetama 5,000+ posts]

SO....

A little update on this amplifier.

Taking it apart to look at some things, I noticed a brown foam which was leaking out of the capacitors. Breaking out the Volt Meter the voltage at the capacitors was 78.9 volts. Which was a little surprising because the capacitors are only rated at 80VDC //content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif. This is a little concerning due to the factors involved; high voltage (157.8 VDC), leaking capacitors, low voltage rating, age, and voltage sway under load (which could jump 10-15 volts). So, I purchased some new capacitors after doing A LOT of reading and checking and thinking.

I replaced the 15,000 uF 80VDC caps with 15,000 uF 100VDC capacitors. I forgot to take my camera home so I don't have pictures of the replacement, but I might take some later of the new caps.

Anyway, after the fix the voltage stays at a pretty constant 80-80.2VDC even under a 150 Watt 4 Ohm load with a 1kHz sin wave. The output is even cleaner and it is much less touchey when it comes to buzzes and pops.

Over all it breathed new life into this amplifier. //content.invisioncic.com/y282845/emoticons/woot.gif.aaa6090e619a97b6090d16dd863c5a69.gif

 

[silvercookie 5,000+ posts]

cool.

 

[joetama 5,000+ posts]

Indeed it is.

I'm trying to find me a decent used Stereo Preamplifier with XLR outputs to match up with this amplifier right now.

 

[silvercookie 5,000+ posts]

wtf does

COCAEMADs mean?