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HEED amplifier clone with Burson Audio V6 "Vivid"
HEED amplifier clone with Burson Audio V6 "Vivid"
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Old 3rd February 2020, 02:44 PM   #1
indaco is offline indaco
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Default HEED amplifier clone with Burson Audio V6 "Vivid"

Evening....Here's my last project based on the HEED clone as headphone class A amplifier (I already built one identical times ago), but this time improved with a toroidal transformer and a better PSU filtering. The trafo is a 20VA with c.t. secondary (9-0-9)...reservoir capacitor for PSU a 10000uF/25V and a filter Panasonic FC 100uF25V for the RC part.
In particular, the better side of this amp was possible thanks to the kind gift of Carlos of Burson Audio, giving me the wonderful V6 Vivid opamp making it litteraly "fly", compared to the standard opamps (like NE5532 or similar). A really nice and realistic listening to my ears.
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Old 4th February 2020, 02:06 AM   #2
Mark Tillotson is offline Mark Tillotson
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Which is odd because measurements show the Bursons are similar in performance to NE5532's maybe a little less performant. You may be victim to expectation bias I fear.


The thread about this is from a month or two ago I can't place it off the top of my head, but it was a head-to-head analysis.
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Old 4th February 2020, 03:04 AM   #3
avtech23 is online now avtech23  Australia
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HEED amplifier clone with Burson Audio V6 "Vivid"
Quote:
Originally Posted by Mark Tillotson View Post
The thread about this is from a month or two ago I can't place it off the top of my head, but it was a head-to-head analysis.
Perhaps from my thread here: My Burson Supreme Sound Projects
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The ever growing project list.. :NAP140 Clone, NAD 3020i & 3225PE, JLH1969, TDA2050, Fender 5F2A Princeton, NE5532 Pre, SHPA, B1 Korg, T2. : VSQC Phunk Style, Retro 50W, Filmosound 601, LM4780. : Apex AX-14, TGM-10, TDA7265 (Last in line)...maybe
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Old 4th February 2020, 11:48 AM   #4
indaco is offline indaco
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Originally Posted by avtech23 View Post
Perhaps from my thread here: My Burson Supreme Sound Projects
Yes, it could be I'm a victim of a kind of expectations but the overall impression was nice....I swapped the amp with others opamps, maybe a good match too was through two OPA627.

I'll take a look to the link, anyway could you tell me a right fitting amp for the V6?
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Old 4th February 2020, 12:24 PM   #5
avtech23 is online now avtech23  Australia
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HEED amplifier clone with Burson Audio V6 "Vivid"
I went in with a somewhat anti-expectation bias - I was expecting there to be either no change, or worse sound from the Bursons (considering throwing something into a circuit without design consideration is generally a bad idea) but I was pleased with the sound.

To me there were audible differences (spatial and detail) and the measurements I took showed that there was some difference in performance between the two (but measurements can't tell you what that exactly sounds like). The noise level measured worse in the bursons but I don't recall it being audible.

I've not tried other amps, only the NE5532 of my own creation based on a very simple inverting configuration so I can't really say what might sound best to you. I have never participated in the whole 'opamp rolling' but there are others on the forum who have tried the Bursons in things like DACs and CD players. Do a search of the site via Google as there are a handful of threads on here.
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The ever growing project list.. :NAP140 Clone, NAD 3020i & 3225PE, JLH1969, TDA2050, Fender 5F2A Princeton, NE5532 Pre, SHPA, B1 Korg, T2. : VSQC Phunk Style, Retro 50W, Filmosound 601, LM4780. : Apex AX-14, TGM-10, TDA7265 (Last in line)...maybe
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Old 5th February 2020, 03:10 AM   #6
Mark Tillotson is offline Mark Tillotson
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Unless you do blind testing you easily fool yourself. Its easy to tell which door the car and goat are behind if you put them there, to put it in Monty Hall terms...
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