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Old 25th April 2011, 09:51 PM   #1
aarsoe is offline aarsoe  Denmark
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Default Heed Quasar Phono stage

Hi there

Anybody out there with any experiences with the Heed Quasar Phono stage?
Like it but have seen pictures of it where different components have been used in what I think is an attempt to keep cost down. So naturally wondering if anybody have had any experience in selected parts replacements?

One specific recommendation is for what you would use as a drop in replacement for a 10uf 100v box design MKT cap? The ones used now are totally unknown to me and are only marked AV (designed logo pulled together) and R60.

Any advice would be appreciated..
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Old 24th July 2011, 07:12 PM   #2
aarsoe is offline aarsoe  Denmark
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bump
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Old 25th July 2011, 05:31 PM   #3
h_a is offline h_a  Europe
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Well, the problem is the old 1/8th rule; means about 1/8 of the retail price is material cost, another 1/8 is assembly. So any half decent piece of gear is actually heavy cut down in the materials department, that's where DIY comes in

Any case, I'm getting off-track, a schematic would greatly help giving recommendations.

Hannes
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Old 26th July 2011, 09:56 AM   #4
aarsoe is offline aarsoe  Denmark
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Hi

Don't have a a diagram, but here is a link with some pretty good pictures of the unit.

Phono-Vorverstärker - Phonovorstufe - Heed Quasar - Frank-Landmesser.de
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Old 26th July 2011, 03:32 PM   #5
oshifis is offline oshifis  Hungary
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Why don't you contact the guys at Heed?

- - - H E E D A U D I O - - -
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Old 26th July 2011, 07:45 PM   #6
aarsoe is offline aarsoe  Denmark
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Don't think they are going to make suggestions on improving their own design. Lol
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Old 1st August 2011, 01:49 PM   #7
aarsoe is offline aarsoe  Denmark
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Nobody with any suggestions?
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Old 22nd November 2014, 09:35 AM   #8
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Quote:
Originally Posted by aarsoe View Post
Nobody with any suggestions?
I would up the 10uF MKT to 47uf electrolytic if your preamp has 10k input impedance. Assuming the MKTs are output coupling caps.
The Q-PSU pwer supply is nothing special: I see cheap Jamicon caps 1000uF, 35V and 1N4001 rectifiers. No problem finding a 50-Watt toroid.
So you can do better using soft recovery diodes and better capacitors, and bigger
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Old 24th November 2014, 04:51 PM   #9
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I have the Quasar and love it. I am running it off the wall wart and not the power supply unit. Wish I was better with electronics as I'd love to build my own power supply, but I'm going to go balanced and buy an Ayre phono and sell the Quasar. It's the best under 2k phono I have heard. I'm using it with Vandersteen Treo's and an Ayre integrated with top AQ cabling. The TT is a Basis 1400 with Benz Glider cart. Would love to hear what you guys do for the power supply.
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