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Old 30th May 2012, 07:14 AM   #1
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Default $1000! How best spent?

I have $1000 more or less. Please,if your cart costs more, don't laugh.
I have a Leak stereo 20, rebuild with modern components but "original"
Technics 1200 with outboard power, as it was 110v and I needed 240v.
Ortofon red cart
A tetra 12ax7 pre amp
Kef speakers. Old ones. the ones with the b139. Duette I believe. Renovated tho
"Chinese interconnects"
20amp extension chord speaker wire..
Happy with the sound, well who really is, content maybe. It plays Pantera to Parsifal. How best to improve it on a budget? The bottom end is a little lacking at times.
Please take a moment and suggest how to spend the cash, I am a competent builder, with wood and electronics.
Thanks
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Old 31st May 2012, 06:24 AM   #2
h_a is offline h_a  Europe
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First biggest improvment - even for free - is to be had by using the proper loading capacitance for your moving magnet cartridge.

Check what Ortofon recommends, subtract 100pF or so for the phono cable then you have the loading capacitance you should set at the phono input. Either replace the caps at the input with the optimum value ones or - better - make them switchable, such that you can finetune to your setup and taste.

With non-adjustable phono pres you'll find typically that these do not have the optimum value at the input, but mm-cartridges are very sensitive to that and I recommend from experience to stay within 50pF or so of the recommended value.

Otherwise the sound can be anything from boring, flat to overly shrill. Makes a big difference.

Hannes
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Old 31st May 2012, 07:44 AM   #3
mikemac is offline mikemac  Australia
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Well funny you should mention that. What about a ganged "? To 500" pf air spaced capacitor. For some reason there are a few from Bulgaria!!!
Would that work?
And thanks for input
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Old 31st May 2012, 10:12 AM   #4
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Quote:
The bottom end is a little lacking at times
why dont you build active subs ?
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Old 1st June 2012, 06:09 AM   #5
h_a is offline h_a  Europe
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Quote:
Would that work?
Well, you would want to know to which value you adjust the capacitance as that's what it's all about

I don't know how you want to achieve that with an adjustable cap. Of course if you have a precise LCR-Meter you can go for that.

Or tune completely by ear.
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Old 1st June 2012, 07:39 AM   #6
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Also thought about active subs, I have recently come in to a huge 240/24v transformers and 4 1000uf can caps (large) so maybe sub/s with a ss amplifier.
No one suggested better cables?
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Old 1st June 2012, 08:22 AM   #7
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you are right he sould have better cables , nothing too expensive
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Old 1st June 2012, 09:21 AM   #8
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Rather than wasting money on new cables, I'd just buy some more music. Oh and if the 139's aren't in a TL, I'd put them in one.
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Old 1st June 2012, 09:57 AM   #9
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Quote:
Originally Posted by pinkmouse View Post
Rather than wasting money on new cables, I'd just buy some more music. Oh and if the 139's aren't in a TL, I'd put them in one.
Agree on the cables, low bang for buck. Diy speakers, amp, or source, would be money better spent IMO.
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Old 1st June 2012, 01:13 PM   #10
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i totaly agree with the loading comment.
also matching cartrage to arm.

i also though about air gap cap for loading. i asked the same thing, and a few guys answered and i learned allot. and got a link to a guy who has done just that.
if you look up threads i started youll see it.

if you mesure the cap and mark at 100/50pf intervals youll have a pretty good starting point.

have you tryied other cartrages? i have a red on my backup table a music hall and i have found it to be light in the low end.
infact my main has a sonus gold blue and i hate having to use the music hall.
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