how to wire Dual Mono chip amp Kit

merickrc · 19th March 2009, 02:02 PM

i am new to the building of chip amps so please bare with me i bought brians Dual Mono chip amp Kit and was wondering how to wire the power supply boards to the amplifier boards do i need to do a jumper on the board because it looks like one power supply will power to amplifiers but with the dual mono i have two power supplys so how do i wire them also do i need to run two of these

Avel Y236750 330VA 25V+25V Toroidal Transformer

bluegti · 19th March 2009, 02:43 PM

My experience is similar to yours - I'm fairly new so take what I saw with a grain of salt.

I just built a dual-mono amp using Brian's kits, but I used two transformers. I think if you have a single transformer, then its not really dual mono and you only need one power supply board.

I'm using Avel Y236503 160VA 22V+22V Toroidal Transformer. Here is a link to how I connected my transformers to the power supply boards:

http://www.diyaudio.com/forums/showt...53#post1704553

Here's another link to how I laid out my amp, except I ran the AC up the middle of the chassis instead of along the side as in the diagram:

http://www.diyaudio.com/forums/showt...62#post1686362

merickrc · 19th March 2009, 04:23 PM

on the board of the power supplys do i need to jump out anything

VictoriaGuy · 19th March 2009, 04:42 PM

I haven't wired up one of these myself,but there are some pics at the apexjr site that may help...

http://www.apexjr.com/miscellaneous.html

Have you contacted Brian?

AndrewT · 19th March 2009, 05:24 PM

Hi,
mono block is one amplifier in one case.
Stereo or two channel is two amplifiers in one case.
Dual mono describes nothing comprehensible.

One transformer with dual secondaries feeding dual rectifiers (as Carlos PSU in the link) is more likely to give a successful outcome when sharing a PSU between two channels in one case.

merickrc · 20th March 2009, 02:14 AM

i still need help i dont know what to do i emailed brian and i have yet to here back from him and as to what you said andrewt i have two terirrods and two power supplys so i dont really understand what you are saying and i still dont really know how to wire them up

BionicSniper · 20th March 2009, 03:09 AM

see if this masterpice of a ms paint makes sense

the top is with one toroid the bottom is with two

star882 · 20th March 2009, 03:53 AM

One power supply properly sized for the load will generally be cheaper and more efficient than two smaller power supplies. But having two power supplies makes for a more fault tolerant design.

AndrewT · 20th March 2009, 09:06 AM

Quote:

Originally posted by star882
....having two power supplies makes for a more fault tolerant design.

agreed.

merickrc · 21st March 2009, 06:49 PM

please can some one tel me how to wire the power supply board to the chip board using brian gt chip amp im building the mono blocks i emailed brian and got know answer please help i dont want to hook this up wrong

19th March 2009, 02:02 PM	#1
merickrc diyAudio Member Join Date: Jan 2009	how to wire Dual Mono chip amp Kit i am new to the building of chip amps so please bare with me i bought brians Dual Mono chip amp Kit and was wondering how to wire the power supply boards to the amplifier boards do i need to do a jumper on the board because it looks like one power supply will power to amplifiers but with the dual mono i have two power supplys so how do i wire them also do i need to run two of these Avel Y236750 330VA 25V+25V Toroidal Transformer

20th March 2009, 03:53 AM	#8
star882 diyAudio Member Join Date: Mar 2007	One power supply properly sized for the load will generally be cheaper and more efficient than two smaller power supplies. But having two power supplies makes for a more fault tolerant design. __________________ "Fully on MOSFET = closed switch, Fully off MOSFET = open switch, Half on MOSFET = poor imitation of Tiffany Yep." - also applies to IGBTs!

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19th March 2009, 02:43 PM	#2
bluegti diyAudio Member Join Date: Nov 2004 Location: Northern Virginia	My experience is similar to yours - I'm fairly new so take what I saw with a grain of salt. I just built a dual-mono amp using Brian's kits, but I used two transformers. I think if you have a single transformer, then its not really dual mono and you only need one power supply board. I'm using Avel Y236503 160VA 22V+22V Toroidal Transformer. Here is a link to how I connected my transformers to the power supply boards: http://www.diyaudio.com/forums/showt...53#post1704553 Here's another link to how I laid out my amp, except I ran the AC up the middle of the chassis instead of along the side as in the diagram: http://www.diyaudio.com/forums/showt...62#post1686362

19th March 2009, 04:23 PM	#3
merickrc diyAudio Member Join Date: Jan 2009	on the board of the power supplys do i need to jump out anything

19th March 2009, 04:42 PM	#4
VictoriaGuy diyAudio Member Join Date: Dec 2008 Location: Victoria, BC	I haven't wired up one of these myself,but there are some pics at the apexjr site that may help... http://www.apexjr.com/miscellaneous.html Have you contacted Brian?

19th March 2009, 05:24 PM	#5
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, mono block is one amplifier in one case. Stereo or two channel is two amplifiers in one case. Dual mono describes nothing comprehensible. One transformer with dual secondaries feeding dual rectifiers (as Carlos PSU in the link) is more likely to give a successful outcome when sharing a PSU between two channels in one case.

20th March 2009, 02:14 AM	#6
merickrc diyAudio Member Join Date: Jan 2009	i still need help i dont know what to do i emailed brian and i have yet to here back from him and as to what you said andrewt i have two terirrods and two power supplys so i dont really understand what you are saying and i still dont really know how to wire them up

21st March 2009, 06:49 PM	#10
merickrc diyAudio Member Join Date: Jan 2009	please can some one tel me how to wire the power supply board to the chip board using brian gt chip amp im building the mono blocks i emailed brian and got know answer please help i dont want to hook this up wrong