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 Post subject: Leak Stereo 50
PostPosted: Tue Jun 06, 2017 5:03 pm 
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Joined: Mon May 15, 2017 4:29 pm
Posts: 21
Location: Eastern Passage, NS, CA
So I just picked up a Leak Stereo 50 with a Point One preamplifier. The problem is with the volume pod. Are these hard to repair? Are there suitable after market parts?
This amp also came with an AI 800 as the pre, but i love the look of the Point One.
Any suggestions or experience with this?


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 Post subject: Re: Leak Stereo 50
PostPosted: Tue Jun 06, 2017 5:31 pm 
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Joined: Sat Mar 22, 2014 5:11 am
Posts: 45
Location: Burlington, ON, CA
Congratulations on picking up the Leak pair.

Leak offered some of the most nicely constructed amplifiers in the day. The amp is a gem. Check for leakage of the capacitors electrically and the ceramic body Erie resistors can be noisy.

The preamp I'm afraid, is not nearly as worthy as the amp. They tend to be noisy and have far too much gain for modern sources.
You must check the oil type couplers as I recall they will tend to leak electrically for sure. Same caveat as above for the resistors.
Many a Point one have been turned to a simple passive control because of these issues. If it were me I'd not bother with it . Place it aside and restore the amp.

The amp has high sensitivity as well and may require some changes on the input side to make it compatible with other preamps.

Have fun.


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 Post subject: Re: Leak Stereo 50
PostPosted: Tue Jun 06, 2017 5:46 pm 
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Joined: Mon May 15, 2017 4:29 pm
Posts: 21
Location: Eastern Passage, NS, CA
Nkj1 wrote:
Congratulations on picking up the Leak pair.

Leak offered some of the most nicely constructed amplifiers in the day. The amp is a gem. Check for leakage of the capacitors electrically and the ceramic body Erie resistors can be noisy.

The preamp I'm afraid, is not nearly as worthy as the amp. They tend to be noisy and have far too much gain for modern sources.
You must check the oil type couplers as I recall they will tend to leak electrically for sure. Same caveat as above for the resistors.
Many a Point one have been turned to a simple passive control because of these issues. If it were me I'd not bother with it . Place it aside and restore the amp.

The amp has high sensitivity as well and may require some changes on the input side to make it compatible with other preamps.

Have fun.


Thank you!
The previous owner has been using an Audio Innovations 800 tube preamp. Would you have any other suggestions for a pre. SS or tube? New?vintage? I am very novice in the tube world. Any info would be appreciated. As for restoring the amp....it is pretty much mint. The only change made to the amp was a spargue wired in. (Does that sound right?)


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 Post subject: Re: Leak Stereo 50
PostPosted: Tue Jun 06, 2017 6:16 pm 
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Joined: Mon May 15, 2017 4:29 pm
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Location: Eastern Passage, NS, CA
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 Post subject: Re: Leak Stereo 50
PostPosted: Tue Jun 06, 2017 6:18 pm 
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Joined: Sun Dec 05, 2004 6:05 am
Posts: 685
Location: north bay, ON, CA
wow it's supposed to be quite the machine!! looks in great shape!!


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 Post subject: Re: Leak Stereo 50
PostPosted: Tue Jun 06, 2017 6:47 pm 
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Posts: 7612
Location: Burlington, ON, CA
Leftymitch75 wrote:
So I just picked up a Leak Stereo 50 with a Point One preamplifier. The problem is with the volume pod. Are these hard to repair? Are there suitable after market parts?
This amp also came with an AI 800 as the pre, but i love the look of the Point One.
Any suggestions or experience with this?


Even for thumbsy guys a volume pot is pretty easy, as long as you can solder. Just be sure to get the correct value pot. If you took it to a repair guy, replacing the pot would be minimal cost. Equally cheap for the tech to drop in a couple resistors to tame the gain a bit.

http://www.partsconnexion.com/controls_pot_alps.html


Maybe start by just getting a bit of contact cleaner (deoxit) into the pot first and then rotate the crap out of it. Look here:

viewtopic.php?f=9&t=45037

_________________
"I'm not Inspector Gadget!"


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 Post subject: Re: Leak Stereo 50
PostPosted: Tue Jun 06, 2017 7:08 pm 
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Location: Montreal, QC, CA
Leftymitch75 wrote:
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It looks absolutely immaculate!!!


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 Post subject: Re: Leak Stereo 50
PostPosted: Tue Jun 06, 2017 7:13 pm 
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Location: Eastern Passage, NS, CA
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Also came with 4 x EL44, and the KT66.

So I would be able to update the Point One For minimal cost? Hope so. Just love the look!!


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 Post subject: Re: Leak Stereo 50
PostPosted: Wed Jun 07, 2017 3:34 am 
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Joined: Sun May 28, 2017 1:25 pm
Posts: 63
Location: Toronto, ON, CA
Beautiful amplifier.You should try and find a copy of the book detailing Leak's history and products. It gives the history of each piece.It contains all the schematics as well. It is called Firsts in High Fidelity.Written by Stephen Spicer. Contributions from many original Leak employees as well as the Leak family.


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 Post subject: Re: Leak Stereo 50
PostPosted: Wed Jun 07, 2017 4:49 am 
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Joined: Mon May 15, 2017 4:29 pm
Posts: 21
Location: Eastern Passage, NS, CA
Sgt Pepper wrote:
Beautiful amplifier.You should try and find a copy of the book detailing Leak's history and products. It gives the history of each piece.It contains all the schematics as well. It is called Firsts in High Fidelity.Written by Stephen Spicer. Contributions from many original Leak employees as well as the Leak family.


I actually also have the original paper work that came with this amp. I am definitely going to look for the book you recommend. I always enjoy the historic side.
Thanks!!


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 Post subject: Re: Leak Stereo 50
PostPosted: Wed Jun 07, 2017 6:24 am 
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Joined: Sat Feb 07, 2015 6:57 am
Posts: 219
Location: North Vancouver, BC, CA
I've got a Leak Stereo 20 and I've got to say your 50 is in amazing shape. I wouldn't change a thing unless you have to. The coupling paper in oil caps on my 20 were just fine, some of the smaller ones may need to be changed. I ended up hacking away at mine to reduce hum but it turned out the amp was fine it was ground loop. I really regret it.


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 Post subject: Re: Leak Stereo 50
PostPosted: Wed Jun 07, 2017 6:48 am 
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Joined: Thu Jan 13, 2011 11:29 am
Posts: 427
Location: St.Catharines, ON, CA
Looks like the volume pot also contains the power switch which might be hard to find.Switches the amp on also?
Maybe a squirt of Simple Green first then hit it with some contact cleaner.

Gary


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 Post subject: Re: Leak Stereo 50
PostPosted: Wed Jun 07, 2017 7:28 am 
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Joined: Tue Dec 07, 2004 4:18 pm
Posts: 2476
Location: GTA, ON, CA
I had a Leak 50 which was restored by Barry Falcon of Falcon Audio in Toronto / Richmond Hill. That was almost 20 years ago and Barry has since left the business, which is unfortunate as he knew this amplifier inside and out.


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