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DIY Dual Mono Power Amps

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Craig M.
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Re: DIY Dual Mono Power Amps (for use with the Beresford DAC)

agreed, c'mon pj, get on it!Big Smile

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PJPro
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Re: DIY Dual Mono Power Amps (for use with the Beresford DAC)

OK. I'm looking at buying some mil spec, 99.9% silver, telfon coated hookup wire from the states. I have requested a quote from the seller for postage.

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idc
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Re: DIY Dual Mono Power Amps (for use with the Beresford DAC)

Do you need any advice on cables? Stick out tongue

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PJPro
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Re: DIY Dual Mono Power Amps (for use with the Beresford DAC)
idc:

Do you need any advice on cables? Stick out tongue


A UK source might be good....but navships is highly regarded as a seller of wire from DIY forums I read.
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idc
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Re: DIY Dual Mono Power Amps (for use with the Beresford DAC)

So far my purchases have been from Maplins for the practice stuff and soldering kit and on ebay i-solder for other soldering stuff and Connect Audio and Compass Audio for wire and connectors.

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Internet - laptop - DAC - amp - lots of headphones.

http://idc1966.blogspot.co.uk/

"A music lover will stop what he's doing and stay glued to a favorite piece of music even if it's coming over a 3" speaker or a public-address system..." - Ken Rockwell

 

PJPro
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Re: DIY Dual Mono Power Amps (for use with the Beresford DAC)

OK. For the signal path I have splashed out on some 24AWG Silver Kapton Teflon Wire and for the power cables I've got some 20 AWG Silver Teflon Wire. Haven't spent as much on the power cables cos we all known that they don't make any difference Wink

All purchased from JohnsWireShop.com run by navships.

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tom1
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RE: Computer-based music

Is this system running?

Can we have some more pics?

How does it sound?

 

Mr Steve
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RE: DIY Dual Mono Power Amps (for use with the Beresford DAC)

Also waiting with bated breath to see the resumption of this example of PJPro's excellent build projects ...

chebby
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RE: DIY Dual Mono Power Amps (for use with the Beresford DAC)

He recently bought an AVI Neutron 5 2.1 system with built-in DAC/preamp and it's own integral active sub.

I may be wrong, but I think PJPro hasn't been around much since then. (Not for about a month anyway.)

 

 

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PJPro
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RE: DIY Dual Mono Power Amps (for use with the Beresford DAC)

I'm still about and do intend to finish this project.  However, for the last 9 months or so I've been working on my house.  I've ripped out walls, floors, joists and ceiliings, stripped out the electrics and plumbing and am in the process of rebuilding it.  At the moment there are no ceilings upstairs, so you can lie in bed looking at the roof!  I'm trying to get into a position where I can install the ceilings and insulate the loft before the winter hits.

I still make the odd visit to the forum but rarely post. 

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Cpt.Issues
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RE: DIY Dual Mono Power Amps (for use with the Beresford DAC)

Firstly I'd just like to say this project has been a joy to read through so far and I wish you the best of luck with it, can't wait to see the results..

I'm quite interested in doing something like this myself one day but I definately need to brush up on my electronics first as the next question will probably highlight..

Just to fly off at a complete tangent here but related to transformers..

During an audit at work on our resistance welding bay, the welder was warned against ever using the transformers at 100% capacity. The auditor explained something about if flux density is too high the core becomes saturated which is very bad and the thing goes bang. Scaling the scenario down from gert spot welding machines to your project, the transformers still operate the same in principle, could maxing out the transformers be a potential issue for you? 

Also if anyone could explain what exactly happens when the transformer becomes saturated in lay-mans terms that would quite interesting..

Bit of a random question but loosely relevant here I feel?

 

*After brushing up on Ferromagnetism I can now answer my own question, still though, are you in any danger of saturating the transformers in your project? Would be pretty nasty if they went bang  Crying *

 

 

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