Possible to modify a Peavey FH-1?

Lisa Lane-Collins

Lisa Lane-Collins

Sophomore
Dec 9, 2012
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16
Adelaide, Australia
Firstly, apologies if this doesn't belong here.

Secondly, I have 4 of these Peavey FH-1 boxes sitting around my carport collecting dust. Two blew up within the first 5 minutes of use because I hadn't bothered to read the specs and didn't realise they couldn't take frequencies below 50Hz, the other two still work fine but rolled off at 60 they aren't much use to me at all.

I'm wondering, why is it that the FH-1s can't go lower? Is it the speaker or something to do with the box design? Would it be possible for me to put a different speaker in and get down lower at high volumes without blowing anything?

As a casual hire speaker they're useless because of the weight, but if I could get them down to 40z (or maybe even 30Hz, don't need to go higher than 90Hz) I could throw 'em in a venue and get the space in my house back :-D
 
Re: Possible to modify a Peavey FH-1?

Lisa Lane-Collins said:
Firstly, apologies if this doesn't belong here.

Secondly, I have 4 of these Peavey FH-1 boxes sitting around my carport collecting dust. Two blew up within the first 5 minutes of use because I hadn't bothered to read the specs and didn't realise they couldn't take frequencies below 50Hz, the other two still work fine but rolled off at 60 they aren't much use to me at all.

I'm wondering, why is it that the FH-1s can't go lower? Is it the speaker or something to do with the box design? Would it be possible for me to put a different speaker in and get down lower at high volumes without blowing anything?

As a casual hire speaker they're useless because of the weight, but if I could get them down to 40z (or maybe even 30Hz, don't need to go higher than 90Hz) I could throw 'em in a venue and get the space in my house back :-D
Click to expand...
The FH1 is a short horn-hence the reason it does not go very low.

There were different drivers used in those cabinets. The original ones were either eminance or CTS stamped frame drivers and later on they used the black widows. THe black widows are stronger units so that may be worth looking into. HOWEVER BE SURE to get the proper model number for that cabinet!!!!!!! DO NOT get one that "looks better" because of the simple specs on the sheet. Horn loading changes what drivers should be used.

It was designed at a time when the bass was not as strong as it is these days.

They could be used as a "mid bass" element with some other larger bass bins-but you may have a problem getting them to "play well with other cabinets".
 
Re: Possible to modify a Peavey FH-1?

Doh. If I only had a scummy rock bands only venue to throw them in where not low wouldn't matter. Probs not much point messing with them if I need something else to go underneath.

Thanks for the info :-)
 
Re: Possible to modify a Peavey FH-1?

hello

here in Scandinavia we celebrate midsommer with bonfires - my ever so longtime dream is to pile up a bunch of old useless speakers - perhaps pulling good elements out first and replacing them with chinese cheapos - and set the whole chabang in fire while playing music thru it - modern amps should be fine with melting speakerwires.....

party would be for roadcrew and their families and friends only. Unfortunately it is busy season so not many would attend...

Anyways - after relative short time of commotion heavenly peace would surround us - and afterwards no hauling of heavy stuff ...
 
Re: Possible to modify a Peavey FH-1?

Timo Ulkuniemi said:
hello

here in Scandinavia we celebrate midsommer with bonfires - my ever so longtime dream is to pile up a bunch of old useless speakers - perhaps pulling good elements out first and replacing them with chinese cheapos - and set the whole chabang in fire while playing music thru it - modern amps should be fine with melting speakerwires.....

party would be for roadcrew and their families and friends only. Unfortunately it is busy season so not many would attend...

Anyways - after relative short time of commotion heavenly peace would surround us - and afterwards no hauling of heavy stuff ...
Click to expand...

This sounds(...) like real fun. Maybe you will experience the Fire Effect...

Transmitting sound through flaming fire adds a unique flanging/phasing effect, caused by parallel paths of the sound passing through areas of randomly changing air density.


:)~:-)~:smile:
 
Re: Possible to modify a Peavey FH-1?

Lisa Lane-Collins said:
Hahah, I want to see/hear this bonfire thing in action.
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Just evenly spread 12 ounces of gasoline over your FH-1 enclosures before playing your favorite mid-1970s recordings through them, apply a match (or equivalent ignition source) and you will see/hear the effect up close and personal ;^). Make sure you have hot dogs or marshmallows handy so you can claim you are simply enjoying a "recreational fire" if the local police or fire department are summoned during the event.

Alternatively, you could increase their output:

http://www.diyaudio.com/forums/subwoofers/184986-horn-extender-wave-guide-th.htm

And with proper design of the horn extender complimenting FH-1 horn flare, the LF response of could be lowered, as well as increased.
Building a new cabinet would be a better solution, but I'd enjoy seeing the bonfire of the vanities again (sorry Tom Wolfe).
 
Re: Possible to modify a Peavey FH-1?

A Nothern California sound company, in possession of perhaps the world's largest tape ball once held a barbecue in their parking lot.

Many of their old, proprietary speaker boxes, with all useful drivers and components removed, were set up like bowling pins and, with the aid of a fork lift the tape ball was "bowled" at the speaker cabinets.

Beer was consumed, tensions were released and a lot of no longer useful plywood was reduced in size.

I can't find the photos of the event but here, with humans in the picture to indicate size , ids a picture of the tape ball. This was taken over 4 years ago. It is bigger now.
 

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Re: Possible to modify a Peavey FH-1?

Lee Brenkman said:
A Nothern California sound company, in possession of perhaps the world's largest tape ball once held a barbecue in their parking lot.

Many of their old, proprietary speaker boxes, with all useful drivers and components removed, were set up like bowling pins and, with the aid of a fork lift the tape ball was "bowled" at the speaker cabinets.

Beer was consumed, tensions were released and a lot of no longer useful plywood was reduced in size.

I can't find the photos of the event but here, with humans in the picture to indicate size , ids a picture of the tape ball. This was taken over 4 years ago. It is bigger now.
Click to expand...
Here is a video from TC Furlongs tape ball vs SM58. This was about 6 years ago-so it is larger now.

Tape Ball vs. SM58 by TC Furlong - YouTube
 
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