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1970s Design Indulgence

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Fatmangolf View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 31 Dec 2023 at 8:14pm
That is a good wish.
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sylvain Quote  Post ReplyReply Direct Link To This Post Posted: 31 Dec 2023 at 5:20pm
my wish for 2024 is the 70'S Amp is offered in a semi or near completed DAK product to propagate better appreciation of music in it's acoustic structure and format AND that it's dedicated complement Pre Amp is ready offered  in less cumbersome construction or (near fully built )to enthusiast bespoke enclosure/case.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 17 Dec 2023 at 10:22pm
My loan unit is sounding very good.
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 17 Dec 2023 at 9:52pm
Originally posted by morris_minor morris_minor wrote:

Did the wooden cased 7eventy get properly finished off? it would be a real shame if five and a half years' work only had 4 units to show for it. But I guess the economics just don't add up Cry.

They could add up quite easily, much depending on vision.

(vision can be taken two ways, but in my case my eyesight was failing - plus I got the shakes Ermm)
That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sylvain Quote  Post ReplyReply Direct Link To This Post Posted: 17 Dec 2023 at 3:14pm
The sound of the 60's/70's was packed in subtle nuances  charged to reach human emotion and my finite baffle speakers of the time did not rely on flare port to boost bass, the musicality was tender and sweet and deeply felt. Music has changed and Values to need larger bass port incorporated and subwoofers to drowned the music and only rhythm and beat control the essence of the music stage in the 21st century to provide the 'hype'.
I chose Speakers carefully with good volume and only accept tiny port tune to 38 -48 Hz to hear  the warming tone of the  " Contre basse " plucking string against a large cavity and 70'S Amp and my nostalgia get me there.  

There is many like me and we the " Old generation with a  large population " and 70'S Amp with some Marketing consideration can reach them. It so deserve and the " Old dears" would be better fulfilled. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote morris_minor Quote  Post ReplyReply Direct Link To This Post Posted: 17 Dec 2023 at 12:56pm
Did the wooden cased 7eventy get properly finished off? it would be a real shame if five and a half years' work only had 4 units to show for it. But I guess the economics just don't add up Cry.
Bob

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Accession MC/Enigma, Accession MM, Reflex M, Elevator EXP, Era Gold V
Solo ULDE, Novo, Lautus USB and digital, Libran balanced, CuSat50
2 x Proprius + Spatia/Spatia Links
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 17 Dec 2023 at 11:00am
Regarding bass. In the wooden boxed unit there was room for 4700uF output capacitors on chassis clips, so I used that value. The three metal cased units have 2200uF fitted. I have one - Sylvain has one - and the other one is the one out on loan currently with Jon.

On reverting to the metal cased unit I noticed a change in overall tone similar to how the loan unit is being described compared with the Proprius. So by the looks of it, it's just the output capacitor size. The Proprius use 2x2200uF making 4400uF which is very close to 4700uF.

It's now a year since the 7eventy power amp went on its travels, and a year since I realised it was too much like pushing melted butter uphill with a sharpened porcupine needle, in getting the thing made in Blighty. Five and a half years since I started this topic it looks more and more unlikely ever to happen.

Mine is being used to listen to the news, weather forecasts, videos, skypes and other broadcasts, as well as music, and I'm highly satisfied with it (preamp is a Majestic). I don't get the itch to make any changes and it just sits there always on with its quiescent meter readings being a constant "12." So as a personal indulgence it's a winner.

I remember saying to someone that all I wanted was a good old transistor amp like I'd heard some 50 years ago. Well, I got what I asked for. WinkWinkWink
That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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