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Replacement HSU VTF2 amp

post #1 of 16
Thread Starter 
My first gen VTF2 amp bit the dust, I'd like to replace the amp. Is there any panel amps that are a direct replacement for that box side, since I paid so much for it would like to keep it. It was used in an apartment and never beat on, the woofer is still in great condition.
post #2 of 16
Quote:
Originally Posted by Goatse View Post

My first gen VTF2 amp bit the dust, I'd like to replace the amp. Is there any panel amps that are a direct replacement for that box side, since I paid so much for it would like to keep it. It was used in an apartment and never beat on, the woofer is still in great condition.

I would call HSU first, it might not be too bad pricewise.
post #3 of 16
Quote:
Originally Posted by sputter1 View Post

I would call HSU first, it might not be too bad pricewise.

+1 their amps are designed for the variable tuning cababilities and built to be used as a system with the driver and box. Trying to use different amps may not work out the best and could be troublesome.
post #4 of 16
Quote:
Originally Posted by Goatse View Post

My first gen VTF2 amp bit the dust, I'd like to replace the amp. Is there any panel amps that are a direct replacement for that box side, since I paid so much for it would like to keep it. It was used in an apartment and never beat on, the woofer is still in great condition.

I had to do this about eight months ago, after having the same sub as yours for nearly ten years. I did have the amp sent back to HSU. The repair was about $100, and they repaired more than what was just obviously wrong. It's something to consider.
post #5 of 16
Quote:
Originally Posted by bo130 View Post

I had to do this about eight months ago, after having the same sub as yours for nearly ten years. I did have the amp sent back to HSU. The repair was about $100, and they repaired more than what was just obviously wrong. It's something to consider.

Nice.
post #6 of 16
Quote:
Originally Posted by JackOften View Post

Nice.

Yep. I was impressed. It's not something that I expected. But it's nice that the company stood by their product so many years down the road.
post #7 of 16
Quote:
Originally Posted by bo130 View Post

Yep. I was impressed. It's not something that I expected. But it's nice that the company stood by their product so many years down the road.

HSU is amongst the very best in CS.
post #8 of 16
HSU won't repair older VTF-2 amps any more. I just got off the phone with them They will try to sell you a different amp, VTF-1 MK2, that has different characteristics and will not fit in the VTF-2 enclosure without modification.
post #9 of 16
Quote:
Originally Posted by bconde View Post

HSU won't repair older VTF-2 amps any more. I just got off the phone with them They will try to sell you a different amp, VTF-1 MK2, that has different characteristics and will not fit in the VTF-2 enclosure without modification.

Do you have any local companies that can take a look at the amp and repair it? Otherwise you have a few options:
- Checkout Parts Express for an amp of similar size and specs
- Use an external amp and bypass the internal.
post #10 of 16
Local repair shops can cost $200-300+ and only guarantee their work for 30-90 days. The difficulty with older amps is that, after the repair on a few parts, other parts may fail. Usually, the repair shop will need the service manual which gives details of the circuit design. I believe that Hsu (along with many other manufacturers) considers their service manual proprietary information.

A few (very lucky) individuals have replaced their electrolytic capacitors (that deteriorate with age and heat) and were able to affect a repair. Many repairs can require replacing parts besides the capacitors.

You can also check out the OAudio amps. I have not had any trouble with either of my PE plate amps.
post #11 of 16
I also have classic Hsu VTF-2 sub apparently with fried amp.
Dr Hsu says no more support on this older model, he suggests MK2 replacement amp which does not fit in exactly, or a whole new sub.

Did anyone try the MK2 amp rebuild suggested by Hsu?
post #12 of 16
Have you checked out this alternative?

http://www.parts-express.com/pe/showdetl.cfm?partnumber=300-803

(If the link doesn't work, it's the Dayton Audio Model SPA250 plate amplifier, part number 300-803 available at PartsExpress)

Many reviewers say it's an exact replacement size-wise for the VTF-2's amplifier.
Edited by asiskind - 1/28/13 at 10:03pm
post #13 of 16
Thread over a year old, I am looking to replace my VTF-2 w/ the Dayton 250.

Has anyone actually used the Dayton?

Any comments appreciated. Thanks
post #14 of 16
I have the PE SA240-B which is the immediate predecessor to 250. It works fine. I also have the PE 500w BASH amp and will have the 250 (which I purchased on Friday at its sale price) delivered next Tuesday. People in this forum have been quite happy with PE plate amplifiers and their other equipment.
post #15 of 16
Please post back how long they will last, most plate amp has only one year warranty, which is pathetic and most will die right after warranty period.
post #16 of 16
If you read through the various threads, very few plate amps from the current (large) set of companies have had issues. Over the years, a few very small companies have failed after they received a bad set of amplifiers.

I have two replacement amps that so far have lasted 5 and 6 years, respectively. One replacement was used on a subwoofer whose amp lasted 11 years. I have six other subwoofers whose plate amps range from 5-20 years old that so far are giving me no problems.

In the late 1980s, I had two standalone subwoofer amps fail for a passive subwoofer. In the early 1990s, I had one subwoofer amp gradually fail (humming louder and louder after three years) that was on a low-level subwoofer (that I gave to a high school kid).
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