BIII with Broskie Unbalancer vs. EE Minimax Plus - My experience - Page 3 - diyAudio
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Old 20th February 2013, 06:03 PM   #21
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Excellent
If we have the same vocabulary for describing audio (I think we do) this
will be just what I have expected and hoped for. Thanks.
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Old 21st February 2013, 01:41 AM   #22
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Are you chaps running the Unbalancer directly into a power amp?
I'm using K40Y-9 PIO caps @ 0.68uF to a 6V6 push pull amp, 100K input impedance - the sound is absolutely stunning - i/v resistors are MK132 (AD1865 DAC) as are all the key resistors on the Unbalancer, never had such a relaxed, yet lucid & detailed sound.

Broskie's circuits really are marvellous, switching the filament voltage is so simple & having the 0.1uF caps to ground the centre tap makes changing from the 12BH7 to a E288CC a 15 second job! He's about as close to an audio genius as we have in this world....
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Old 21st February 2013, 10:45 AM   #23
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Yes, I am running directly a power amp with it. A preamp would destroy the magic.
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Old 21st February 2013, 10:50 AM   #24
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Blitz.
Are you using Broskies pcb or hardwire ?
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Old 21st February 2013, 11:36 AM   #25
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The pcb. Regards
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Old 22nd February 2013, 12:11 AM   #26
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Quote:
Originally Posted by Blitz View Post
On the weekend I will try the Ropoint Wirewounds, the new An Tantalums non magnetic as i/v the Neoohms in other places like load resistor for the first stage or cathode resistor in the second stage...lots of fun...
Great, so now I have this to look forward to as well
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Old 26th February 2013, 09:13 PM   #27
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Hi
I use the Unbalancer also for a DAC with 4xPCM1704 with great result. For the first stage I use ECC83 (RFT made) and for the second stage ECC82 Tungsram.
For the I/V resistor I use 50ohmi 0.1% two 100ohm in parallel, at the output I have 2Vrms
The other parts are good quality components like 0.1u Vishay and 10u Solen capacitors
In the photo is the previous diagram, only simulation
In the final version only the input resistors have been changed from 10 to 50ohm.
Best regards
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File Type: jpg I-V vacuum tube.jpg (74.2 KB, 625 views)
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Old 27th February 2013, 03:16 PM   #28
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Hi
I use the Unbalancer with this DAC
http://www.diyaudio.com/forums/audio...converter.html
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Old 28th February 2013, 06:27 PM   #29
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Blitz: How did the weekend projects turn out?



And by the way has anyone recived a releasedate for the "Unballancer" ?
I have been waiting for three months and my sent questions about it
seem to have been lost in the spamfilter or ........I don't know.

He got a large shippment of pcb's in the end of November and it seems
a bit strange that it's taking so long. Just hoping that he's alright at least.

Last edited by dahlberg; 28th February 2013 at 06:41 PM.
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Old 28th February 2013, 06:40 PM   #30
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I messed it up and killed one dac...idiot...luckily i have one spare dac which I need to setup this weekend to be back in business...
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