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Post by hifinutt on Sept 18, 2021 11:34:58 GMT
Not being a clever technician like any of you can i ask a question ? apparently joe henry makes 2 types of F5 clone , what are the differences from these pics ? these are the ones i have which apparently cost around 1300 quid [ on loan]  P1070663 by , on Flickr  JH F5 by , on Flickr  f5 clone jh 2 by , on Flickr and these are the cheaper ones at 950 www.ebay.co.uk/itm/133804614272?hash=item1f27606280:g:HQMAAOSwXAFeNtEvistortion @ 1 watt .001% to .005% @ 1 KHz Input Impedance 101 Kohm Damping Factor 60 Output power stereo 8 ohms 25 watts @ 1% THD, 1KHz Voltage Gain 15.3 dB Maximum unclipped output +/-20 Volts Maximum output current 10 amps Frequency response - .0 dB @ DC, -3 dB @ ~ 1 megaHertz Noise ~60 uV unweighted, 20-20 KHz Matched jfets and mosfets The F5 design Speaker protection |
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Post by macca on Sept 18, 2021 11:44:03 GMT
I'm not a technician but seems to me that your one have eight capacitors and the one on ebay only have four.
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,071
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Post by Bigman80 on Sept 18, 2021 11:46:08 GMT
Arent the others Alephs?
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Post by macca on Sept 18, 2021 11:50:10 GMT
The Ebay ones do state they are the 'F5 design'.
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,071
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Post by Bigman80 on Sept 18, 2021 11:51:58 GMT
The Ebay ones do state they are the 'F5 design'. I must be looking at the wrong amp lol |
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,071
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Post by Bigman80 on Sept 18, 2021 11:53:35 GMT
hifinuttGive us a set of pics showing the whole innards of the amp from above
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Post by antonio on Sept 19, 2021 5:00:37 GMT
As Macca would say, in a blind test how much of a difference is there between all the amps he has listed.
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Post by hifinutt on Sept 19, 2021 21:24:16 GMT
Thanks guys , they are not alephs, they are 25 watts per channel monoblocks. Sadly they are not mine to take apart , those are the only pics I have
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,071
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Post by Bigman80 on Sept 20, 2021 6:52:55 GMT
Thanks guys , they are not alephs, they are 25 watts per channel monoblocks. Sadly they are not mine to take apart , those are the only pics I have Fair enough. Best to ask JH? |
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Post by hifinutt on Sept 20, 2021 10:36:39 GMT
yes will do , thanks
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Post by ijrussell on Sept 20, 2021 11:05:19 GMT
The more expensive pair have higher quality parts on the amplifier and power supply boards. Better quality components, particularly on the amp boards, should have a positive impact on sound quality.
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,071
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Post by Bigman80 on Sept 20, 2021 12:34:35 GMT
The more expensive pair have higher quality parts on the amplifier and power supply boards. Better quality components, particularly on the amp boards, should have a positive impact on sound quality. Welcome Ian! Seeing your name here just adequately reminded me about those loading plugs 😳 Send me a message and we'll sort them out. Good to see you here 👍 Oliver. |
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Post by hifinutt on Sept 22, 2021 11:58:25 GMT
The more expensive pair have higher quality parts on the amplifier and power supply boards. Better quality components, particularly on the amp boards, should have a positive impact on sound quality. thanks ian , pleased to say i can now keep them so i am well chuffed |
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,071
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Post by Bigman80 on Sept 23, 2021 3:27:49 GMT
The more expensive pair have higher quality parts on the amplifier and power supply boards. Better quality components, particularly on the amp boards, should have a positive impact on sound quality. thanks ian , pleased to say i can now keep them so i am well chuffed Wow, That's worked out well! Can we get a pic of the guts now? |
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Post by hifinutt on Sept 23, 2021 16:43:21 GMT
ha , maybe when i get time !!!
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Post by hifinutt on Jan 4, 2022 20:55:44 GMT
Put these f5 clones with the tannoy Eaton legacy. incredible grip soundstage is massive. What a match !! These tannoys loved sugden a21se and these are even better with the bc pre ( dc3) .
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Post by antonio on Jan 5, 2022 0:55:17 GMT
Does that surprise you Phil? When you say they are even better with the BC pre, what other pre did you use, ever thought of a nice passive?
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Post by hifinutt on Jan 5, 2022 16:39:07 GMT
gosh antonio , i think i have used about 30-40 pre amps over the years . not with the f5 of course . the sean jacobs dc3 psu lifts the performance of the bc pre 3 vbs pretty high . with the vbs1 its about level with the mfa classic v2 . with the dc3 its a lot higher . Had most of the mfa passives and at one point had the ref5 and mfa baby ref together to try and compare . the baby ref was and is superb. what makes the bc pre 3 easy to use is the remote. it has 200 steps . so i use 2 BC pre amps [ vbs] in 2 systems
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Post by antonio on Jan 6, 2022 1:44:57 GMT
I think we were at crossed purposes here Phil, your original post said "and these are even better with the bc pre ( dc3)". I did not need to know your pre amp history  only what the BC replaced. Maybe I have misunderstood your wording and the BC is the only pre you have used. |
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Post by hifinutt on Jan 6, 2022 19:34:38 GMT
My apologies!!
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only what the BC replaced. Maybe I have misunderstood your wording and the BC is the only pre you have used.