BOZ to Gainclone (LM4780) ? is that a "good" thing

zei · 7th April 2005, 07:16 AM

Hello everyone.

I,m new to the forum (and to diy audio as well) so be gentle.

I,m just now putting together a lm4780 gainclone from Peter Daniel and would like a nice preamp for it.

i happen to have a pcb etched for the nelson pass BOZ laying here. so my question is of course. Is that a good combination?

this is my first project so it needs to be kinda easy to make and the BOZ seems easy enougf for me. But will it sound ok?

also, is there anything i need to change from the original design or can i just make it as it is supposed to be?

thanx alot for helping out the new guy.

best regards

dhole · 7th April 2005, 12:02 PM

i think you should build the boz , you may find the boz may lead you to making some aleph amps to replace that gainclone. I have built one recently (with brianGT kit) and wouldnt put the gclone in the same league. you have moved to the right side of the forum brother , stay here and feel the warm breeze PASS over you.
dave

Hanzwillem · 7th April 2005, 12:28 PM

I think that will work well. I use my gainclone with a bosoz (unbalanced) and am quite happy with that combination. I have a spare BoZ that I can give a try, but I believe the volume control is missing because I had to use that in an other project.
If you do not have a coupling cap in you gainclone you should leave the poweramp off the first couple of seconds after the boz powers up. It needs some time to set the DC output to 0V.

zei · 10th April 2005, 06:44 PM

thanx for the answers and the tips.
I,ll start the boz building this week then ..

Shoog · 10th April 2005, 10:27 PM

My personal opinion is don't build the BOZ. I built one, and was happy enough with it for two years. I then built a couple of valve line stages and the BOZ has gone into retirement.
The BOZ sounds lively and upfront, a little artificial, a good match for the Zen which is very soft sounding (I built one of those, but retired it when I built my first gainclone). The tube preamps I have built sound much more neutral. Go for tubes, you won't regret it.

Shoog

Stabist · 10th April 2005, 11:47 PM

Quote:

Originally posted by Hanzwillem

If you do not have a coupling cap in you gainclone you should leave the poweramp off the first couple of seconds after the boz powers up. It needs some time to set the DC output to 0V.

But aren't caps allready at BoZ's output?

7th April 2005, 07:16 AM	#1
zei diyAudio Member Join Date: Feb 2005 Location: Gothenburg, Sweden	BOZ to Gainclone (LM4780) ? is that a "good" thing Hello everyone. I,m new to the forum (and to diy audio as well) so be gentle. I,m just now putting together a lm4780 gainclone from Peter Daniel and would like a nice preamp for it. i happen to have a pcb etched for the nelson pass BOZ laying here. so my question is of course. Is that a good combination? this is my first project so it needs to be kinda easy to make and the BOZ seems easy enougf for me. But will it sound ok? also, is there anything i need to change from the original design or can i just make it as it is supposed to be? thanx alot for helping out the new guy. best regards

7th April 2005, 12:28 PM	#3
Hanzwillem diyAudio Member Join Date: Nov 2002 Location: Hengelo, The Netherlands	I think that will work well. I use my gainclone with a bosoz (unbalanced) and am quite happy with that combination. I have a spare BoZ that I can give a try, but I believe the volume control is missing because I had to use that in an other project. If you do not have a coupling cap in you gainclone you should leave the poweramp off the first couple of seconds after the boz powers up. It needs some time to set the DC output to 0V. __________________ They must have been holy chips or something - Pedro

10th April 2005, 06:44 PM	#4
zei diyAudio Member Join Date: Feb 2005 Location: Gothenburg, Sweden	thanx thanx for the answers and the tips. I,ll start the boz building this week then ..

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What Is This Thing? "Sonic Solutions 8-channel A/D"	SpikedCola	Everything Else	7	9th July 2009 04:48 PM
Do you think there is such a thing as "National taste"in sound?	Panicos K	Everything Else	12	20th February 2009 09:05 PM
Linear voltage regulator: how to make good use of "sense" and "ground sense"?	NeoY2k	Analog Line Level	7	6th September 2008 11:35 PM
What's "Snubbers" on gainclone LM4780 ?	nickthevoice	Chip Amps	3	20th February 2007 01:02 AM
is there really such a thing as the "brown note"?	travis	Everything Else	27	20th August 2004 03:10 PM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

7th April 2005, 12:02 PM	#2
dhole diyAudio Member Join Date: Jul 2004 Location: Brighton	i think you should build the boz , you may find the boz may lead you to making some aleph amps to replace that gainclone. I have built one recently (with brianGT kit) and wouldnt put the gclone in the same league. you have moved to the right side of the forum brother , stay here and feel the warm breeze PASS over you. dave

10th April 2005, 10:27 PM	#5
Shoog diyAudio Member Join Date: Aug 2002 Location: Eire	My personal opinion is don't build the BOZ. I built one, and was happy enough with it for two years. I then built a couple of valve line stages and the BOZ has gone into retirement. The BOZ sounds lively and upfront, a little artificial, a good match for the Zen which is very soft sounding (I built one of those, but retired it when I built my first gainclone). The tube preamps I have built sound much more neutral. Go for tubes, you won't regret it. Shoog

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read