Tube DIY Asylum: Peter's comments at the CES by Lynn Olson
Do It Yourself (DIY) paradise for tube and SET project builders.
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In Reply to: Re: Jack off posted by Peter Qvortrup on September 16, 2003 at 00:38:11:
As the first American reviewer of the Ongaku (about ten years ago in Positive Feedback magazine), I was struck just how different the Kondo amplifier was from anything I'd heard before - with speakers I knew very well, having designed them myself.
A couple of years later I had the pleasure of meeting Kondo-san and Peter at the Winter CES, and was curious how an Ongaku would sound if made from more mundane components - no ultra-exotic silver OPT, no handmade silver-oil coupling cap. Both Kondo and Peter made it clear that a cheapskate version would sound very different indeed; the extensive use of silver, along with minimizing the capacitor count, is an essential design aspect of the Kondo sound.
This conversation played a role in thinking about the sonics of coupling caps in general; if cap quality had to raised to the level of $2000 handmade silver-foil caps to get the highest level of transparency and musical realism, that does call into question using caps at all. By that time I'd tried a lot of different caps in my speaker crossovers, and basically liked none of them. In a speaker, you can conceal the sound of cap - to a degree - by re-equalizing the speaker itself (in the range of a 1/3 to 1/2dB correction in the upper midrange). In an amplifier, though, the option of equalization is not really available, leaving the sound of coupling cap exposed - more so than a speaker, since coupling cap covers the whole audible range.
Direct coupling is an option, but I find multiple stacked power supplies unappealing - besides, the caps re-appear in the power supply bypass caps, which are usually lower quality than coupling caps.
My guess is that some people can hear caps, others can't. In a way, the second group are lucky, since they'll be satisified with most of the electronics on the market.
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Topic - Re:"The Amity, Raven, and Aurora" by Lynn Olson - cheap-Jack 13:41:35 09/15/03 ( 33)
- One More Vote From the Pro Lynn Camp - MikeT 12:18:05 09/16/03 ( 0)
Re:"The Amity, Raven, and Aurora" by Lynn Olson - Ryder 07:58:26 09/16/03 ( 5)
- My suggestion is that we no longer respond to this guy as he obviously craves the attention. - Bas Horneman 08:11:55 09/16/03 ( 4)
- Yes, I smell trolls... - andy evans 14:33:38 09/16/03 ( 0)
- Re: My suggestion is that we no longer respond to this guy as he obviously craves the attention. - Ryder 10:28:06 09/16/03 ( 2)
You SHALLOW ASS! - email@example.com 07:22:17 09/16/03 ( 2)
- "Lynn Olsen is one of the first audio designers in decades that uses both sides of his brain." - kurt s 07:48:19 09/16/03 ( 1)
- No but you would be surprised..... - firstname.lastname@example.org 07:58:18 09/16/03 ( 0)
Re:"The Amity, Raven, and Aurora" by Lynn Olson - fatbottle 03:43:52 09/16/03 ( 0)
Re:" Thankyou Lynn - TomWh 23:05:41 09/15/03 ( 0)
My dad can beat your dad in amp building! - kurt s 22:25:32 09/15/03 ( 0)
Re:"The Amity, Raven, and Aurora" by Lynn Olson - Hifitom 20:10:31 09/15/03 ( 0)
Clueless-jack? nt - Vinyljh 19:03:24 09/15/03 ( 1)
- Re: Cheap Jackass? nt - Bassplayer2 16:47:36 09/16/03 ( 0)
Let me get this straight... - Jack Frost 17:50:40 09/15/03 ( 0)
Jack off - Anthony Dockrill 17:46:07 09/15/03 ( 3) Facts, etc. - gdahl 17:21:47 09/15/03 ( 9)
- Re: Facts, etc. - cheap-Jack 12:39:36 09/16/03 ( 8)
- Re: Facts, etc. - gdahl 16:15:19 09/16/03 ( 5)
- Why do his posts remind me of Andre Jute? (nt) - Tom S 13:25:45 09/16/03 ( 1)
- I think you're onto something nt - groverg 13:38:04 09/16/03 ( 0)
Fair to say that I am a calm sort of person... - Bas Horneman 15:45:38 09/15/03 ( 0)
Re:"The Amity, Raven, and Aurora" by Lynn Olson - furry 15:13:25 09/15/03 ( 0)