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Old 21st April 2010, 11:45 PM   #1341
Salas is online now Salas  Greece
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Quote:
Originally Posted by merlin2069er View Post
Here's my build so far...

Just need to wire up a power switch (to the front or back panel).

hmm, led strings are not quite what was recommended (1.8v drop each).

Other than that, I'm really happy with the build. Most difficult part was drilling out a square hole for that IEC inlet.

Next build I'll hopefully find something that is pre-drilled.
Clean build, nice box.
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Old 22nd April 2010, 12:12 AM   #1342
udailey is offline udailey  United States
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Yeah Joe. looks nice!
Uriah
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Old 22nd April 2010, 01:46 AM   #1343
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More listening impressions. My B1/Aleph 5 combo has tons of detail and resolution but is a touch bright and a touch cold for my taste. Since I went from an integrated amp to a buffer/power amp combo I've change two things so it may be awhile before I track down who or what is the culprit.

BTW, the change to higher CCS seems to be all positives. I found more bass, more depth, and more detail. An improvement worth pursuing.

My integrated is a PD gainclone so I'm going to have to do some back to back tests to see which may earn a permanent berth on my component rack.

On the horizon is a lightspeed for my B1 and hopefully a pair of F5 monoblocks. I must say Father Pass's generosity is keeping me very busy!

Regards,
Dan
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Old 22nd April 2010, 01:51 AM   #1344
Salas is online now Salas  Greece
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What kind of speakers you got? How is their HF? Is the system bright on known headphones too? High current findings are consistent. Give it a full 48hours of play on the clock, some said it mellows down if its partly the buffer's contribution too. Maybe the lytics.
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Old 22nd April 2010, 02:53 AM   #1345
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My speakers.

Regards,
Dan

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Old 22nd April 2010, 03:03 AM   #1346
Salas is online now Salas  Greece
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Ribbon arrays can throw cylindrically more consistently in the long dimension than their cone neighbors at crossover and up. Have you taken RTA averages on listening seat area? Awesome build by the way.
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Old 22nd April 2010, 03:38 AM   #1347
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Ribbon arrays can throw cylindrically more consistently in the long dimension than their cone neighbors at crossover and up. Have you taken RTA averages on listening seat area? Awesome build by the way.
Although I built these myself, these arrays were designed by Rick Craig of Selah Audio.

Selah Audio

BTW. Now that I've experienced them I can't ever imagine not having line arrays.

Regards,
Dan

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Old 22nd April 2010, 03:45 AM   #1348
Salas is online now Salas  Greece
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I know what you mean. Have had a special experience in such systems both pro and domestic. Still they can be over revealing if not angled and padded right for each coverage application.
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Old 22nd April 2010, 08:25 AM   #1349
vzs is offline vzs  Europe
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I ask because I think it would drop THD.
As suggested I've changed Rd with a CCS (parallel P jFets to lower Id) and once I realized that I have current amplification and need an R to gnd to have I/U conversion and figured out a correct R value it worked like a charm (at least in sim). All measured Vds's, Id's seamed right and THD dropped to 0.05% for 2.5V RMS out. Not bad for 25db gain, dc coupled line amp (if it's so on the bench as well )
I'm a newbie in electronics theory so I have to chew on this and have to listen whether Rd or CCS one I like better.

Thanks! no more off topic...
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Old 22nd April 2010, 02:08 PM   #1350
udailey is offline udailey  United States
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Sound ON TOPIC to me and I hope you keep posting about it!
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