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Old 9th June 2003, 08:48 PM   #21
fedde is offline fedde  Netherlands
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Yep, gainclones rule !

I was just listening to a live album of Erykah Badu. The sound is quite live, nice bass smooth voice. I like it!
The 330 k feedback makes the GC even more lively. Also, very important is the grounding of the + input. I grounded the 330 k resistor there to the stepped att. ground by a separate wire. This makes the amp also more tight at high volumes!
(otherwise the power supply trash goes directly in the opamp !!!)

Fedde
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Old 10th June 2003, 12:01 AM   #22
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Default NAD 1020A Pre-Amp

Since you people were speaking of NADs(although a bit off topic) maybe I could get an opinion or two. I got a NAD 1020A Pre-Amp at a pawnshop for very little. Is it a good choice for a pre-amp for my inverted Gainclone? I heard it had a great phono section so when I saw it I grabbed it. All the RCA jacks needed resoldering but it seems to work and sound nice enough. Thanks.
Greg
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Old 10th June 2003, 01:42 PM   #23
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Originally posted by mothman
I can verify with confidence that the 50 watt LM3886 passive integrated amp I've built is just as satisfying to me as any of the above.

I am just curious how do you make a PASSIVE AMP? Isn't that an oxymoron?
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Old 10th June 2003, 01:58 PM   #24
mothman is offline mothman  United States
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The amp has volume controls with no active pre-amp circuitry,hence the term'Passive Integrated'
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Old 10th June 2003, 03:12 PM   #25
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ah, the sealed lips of the sample-chip community. How does one become initiated, I often ponder. Man, I wish I knew the secret handshake. What I wouldn't give for some info on how to get samples

tim s
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Old 10th June 2003, 10:53 PM   #26
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Thumbs up samples

http://www.national.com/pf/LM/LM3875.html

Go to this page and it is clear from there how to get samples. I got them cause I work for a tech company and I got them sent there. You may have to come up with a company name to be taken seriously for free samples....or not.
Greg
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Old 11th June 2003, 03:54 AM   #27
manners is offline manners  United Kingdom
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I plan to build 4 monoblock gainclones along with a passive pre to replace a Tag McLaren 60i amp. Everything i have read related to GC seems to very positive about the SQ.
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Old 11th June 2003, 07:14 AM   #28
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I just got this guys...sorry alot of questions to be returned....with National...if you dont have a corparate E-mail account they charge you shipping(cheap)...I got quoted through my home Email 10 Bucks for 4 chips..LOL.....max and Dallas still ship samples free as well as Microchip...for all you programmers like me....I borrowed a cam and have some pretty neat stuff on the go which I will post in the next few days.......and maybe I`ll make peter Danial get pissed off even with the sx-5590 tranny and ALL the components....but who knows...ok enough ranting...

Cheers!!The DIRT®
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Old 11th June 2003, 07:23 AM   #29
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I won't be easily pissed off
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Old 11th June 2003, 09:47 AM   #30
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I won't be easily pissed off

Deam, Peter!
Stop it!

That's beautiful!
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