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[#5802] Leak Club for Leakies or Leak user    




Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 16:52
[#5803] Leak Club for Leakies or Leak user    



Gingers
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221.xxx.xxx.23
2005-05-22 16:56
[#5804] Leak Club for Leakies or Leak user    
The Pye HF25 is a KT66 push pull monoblock power amplifier made in 1950s. It gives 25W through the big output transformers. The power supply is choke regulated. It is one of the most powerful English vintage amps, making it more than sufficient to drive a lot of power hungry modern speakers. They are very rare nowadays since most of them have gone to Japan or Hong Kong, although I see one or two for sale occassionally in internet auctions.
--------------------------------------------

Hon Wo's web site : )

http://homepage.ntlworld.com/hon.lau/PyeHF25.html



Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 16:59
[#5805] Leak Club for Leakies or Leak user    



Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 17:00
[#5806] Leak Club for Leakies or Leak user    
How do you like the sound of HF25 compare to your TL12.1 and TL25+ etc.?
timtube
個人訊息 正式會員
219.xxx.xxx.144
2005-05-22 18:41
[#5807] Leak Club for Leakies or Leak user    
Tim

The HF25 is very good but my ears are customed to Leak TL/12.1 already : )

12.1 sounds more relax to my ears and the 餘韻 is more : )

John

Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 18:59
[#5808] Leak Club for Leakies or Leak user    
The price of a pair of HF25 was high in eBay BUT the seller offered this pair at a very reasonable price : )



Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 19:05
[#5809] Leak Club for Leakies or Leak user    
It is always a pleasure to see other vintage tube amp at my home.

Simple thinking as one cannot own all the tube amplifiers : )

The conclusion I met after having owned quite a few, if not, toys already : )



Gingers
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221.xxx.xxx.23
2005-05-22 19:09
[#5810] Leak Club for Leakies or Leak user    
Have you or F2aYeung tried to adjust the positive feeback on the HF-25? I never know how that works?
timtube
個人訊息 正式會員
219.xxx.xxx.144
2005-05-22 19:09
[#5811] Leak Club for Leakies or Leak user    
HF25
----------------------------------

The GZ32 affected the soundstage much.

Mullard GZ32 brown base is better than Philips GZ32. And U52 also sounded nice with HF25.



Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 19:12
[#5812] Leak Club for Leakies or Leak user    
Have you or F2aYeung tried to adjust the positive feeback on the HF-25? I never know how that works?
---------------------------------

No. We did not try it.
We know a little about HF25.

John
Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 19:13
[#5813] Leak Club for Leakies or Leak user    
VT75 is better than KT66 : )





Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 19:15
[#5814] Leak Club for Leakies or Leak user    
Yuen waited for one month for the restoration : )
Obviously he was poisoned by my Leak : )





Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 19:18
[#5815] Leak Club for Leakies or Leak user    
U52 will reduce the opearting voltage and reduce the life of the VT75/KT66. Not a good idea for prolong use.
timtube
個人訊息 正式會員
219.xxx.xxx.144
2005-05-22 19:39
[#5816] Leak Club for Leakies or Leak user    
It's indeed a pleasure to visit Ginger's LS3/5a+Leak 'warehouse' again. Ginger's system sounds as macho and punchy as usual, but also more refined than my last visit. Could it be the difference between Chartwell and Spendor? Those Chinese instrumental music was so meaty that I thought I was listening to horn speakers!

We compared Quad II, Leak Stereo 50, Pye HF25 driving the Guarneri Homage. Leak 50, either with VT75 or KT77 kills the Quad II instantly imho. Quad II + Guarneri sounds so boring which makes me almost fall asleep. The best match with Guarneri is Leak with KT77 and the 8 ohm tapping sounds better than 16 ohms. HF35 is hardwired to 16 ohms so it's unfair to make any judgement. With B65,33S29, VT75 sounds more balanced than KT77. Later on we also try 33S29,33S30 driving VT75 and I personally think 33S30 is a league ahead of B65.

Next we moved on to Ginger's system for the big event, HF25 Vs TL12.1 both with the proper 15 ohms loading. TL12.1, with its signature sinuous harmonics and thick meaty body is indeed addictive. No wonder so many inmates here fell in love with them at first audition. HF25 on the other hand sounds a bit more transparent, more airy, more powerful but lighter in the midrange. For vocal, sonata, chamber... TL12.1 is the obvious choice but for larger scale music, I think HF25 has more spatial definition and more expansive sound stage. Both are excellent vintage amps but I think Leak 12.1 has better transformers and PS caps.
F2ayeung
個人訊息 正式會員
202.xxx.xxx.174
2005-05-22 20:13
[#5817] Leak Club for Leakies or Leak user    
F2aYeung

Thanks for details report : )
I think I should borrow a pair of 12.1 with 8 ohm loads to drive the Guarneri if Yuens does not mind : )

John
Gingers
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221.xxx.xxx.23
2005-05-22 20:40
[#5818] Leak Club for Leakies or Leak user    
The RED cable should be inserted on the left RCA input of the Stereo 50. And the black should be the right : )

--------------------------------------

Is it right?

John

Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 22:06
[#5819] Leak Club for Leakies or Leak user    
I think the connection is correct wor. It's the speaker terminals at the back which caused confusion in these Leak stereo amps.

BTW. You know that pair of black cables cost almost as much as the Stereo 50.
F2ayeung
個人訊息 正式會員
202.xxx.xxx.44
2005-05-22 22:38
[#5820] Leak Club for Leakies or Leak user    
Yeung

My solution : )



Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 22:47
[#5821] Leak Club for Leakies or Leak user    
BTW. You know that pair of black cables cost almost as much as the Stereo 50.
---------------------------------------

I can see the Audio Note plugs : )
Bought directly from Japan AudioNote : )

John
Gingers
個人訊息 正式會員
221.xxx.xxx.23
2005-05-22 22:48
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