Thank you all for participating! 
Congrats to Brian!!! Please send me a message to work out shipping and power supply details.
Ironically - before starting the drawing I put on a Tragically Hip record. And I think BG is from Toronto.
Congrats to Brian!!! Please send me a message to work out shipping and power supply details.
Ironically - before starting the drawing I put on a Tragically Hip record. And I think BG is from Toronto.
- brian.goodman 1.5 Mighty ZenMod
- liva
- merlin el mago
- lolo6990
- Potepuh
- lene
- Abx74
- Chris Jones KS
- biju55
- Har297
- mbose
- tonyp063
- adason
- randyvickery
- emuffler
- geoturbo
- Prodigy85
- avtech
- analogdiy
- rockies914
- lydlaug
- BrianGasberg
- TungstenAudio
- E_Fortier
- beeah
- manniraj
What a nice surprise on this rainy Toronto Monday!
Thank you for your generosity in offering this to the Pass forum members.
Will PM my address and preferred configuration.
Regards,
Brian
Thank you for your generosity in offering this to the Pass forum members.
Will PM my address and preferred configuration.
Regards,
Brian
Brian got back to me quickly, so it's all boxed up to go to YYZ.
I was worried that if he didn't claim the prize I'd be sending this to OPLDF in Serbia.
I was worried that if he didn't claim the prize I'd be sending this to OPLDF in Serbia.
Just wanted to say that, in light of my recent good fortune in forum giveaways and other drawings, I did not add my name to the list.
You're welcome.
You're welcome.
Normally it would of gone to the second person on your list and so on.Brian got back to me quickly, so it's all boxed up to go to YYZ.
I was worried that if he didn't claim the prize I'd be sending this to OPLDF in Serbia.
Looking forward to seeing Brian’s build and his feedback on the Aleph sound.
Brian got back to me quickly, so it's all boxed up to go to YYZ.
I was worried that if he didn't claim the prize I'd be sending this to OPLDF in Serbia.
P.S. It was my birthday on June 8th, so this was the icing on the cake!
Removing myself. Things happened & I will not be able to meet the requirements.
- brian.goodman 1.5 Mighty ZenMod
- liva
- merlin el mago
- lolo6990
- Potepuh
- lene
- Abx74
- Chris Jones KS
- biju55
- Har297
- mbose
- XXXXXX
- adason
- randyvickery
- emuffler
- geoturbo
- Prodigy85
- avtech
- analogdiy
- rockies914
- lydlaug
- BrianGasberg
- TungstenAudio
- E_Fortier
- beeah
- manniraj
This will be a two step build - to meet the 2 month deadline, a stereo amplifier using an existing chassis, then once snow falls, monoblock builds.
Will need donuts and heat sinks, so looking for advice on sources - either Canadian sources to avoid customs/brokerage fees, or sources that have reasonable shipping rates to Canada.
Will need donuts and heat sinks, so looking for advice on sources - either Canadian sources to avoid customs/brokerage fees, or sources that have reasonable shipping rates to Canada.
Regarding the transformer, check Ebay for new or used units in Canada. I have searched and sometimes have found things... However, Antek is a really great deal and I have had nothing but great luck with them. I have ordered all but one transformer from them. However, they are in the USA. I tend to go oversized by quite a bit which seems to result in a very quiet transformer.
I believe Noratel is in Canada but they are less straightforward. Great transformers though. Plitron (which was used in Pass Labs amps) is now I believe owned by Noratel.
You can check Mouser, digikey and newark to see if they have any transformer stock in Canada.
I suspect you would want a 200va per channel if you are going dual mono. I would persoanally look for 300va or 400va per channel so you could repurpose the transformers for a couple of future single power supply builds down the road. The cost difference would be nominal. 18vac 300va is a very popular transformer choice for alot of designs around here. From Antek the difference is $10 or $16 per transformer.
You can also look for something with 4 18vac secondaries (less common) which would still work for your dual mono setup.
I believe Noratel is in Canada but they are less straightforward. Great transformers though. Plitron (which was used in Pass Labs amps) is now I believe owned by Noratel.
You can check Mouser, digikey and newark to see if they have any transformer stock in Canada.
I suspect you would want a 200va per channel if you are going dual mono. I would persoanally look for 300va or 400va per channel so you could repurpose the transformers for a couple of future single power supply builds down the road. The cost difference would be nominal. 18vac 300va is a very popular transformer choice for alot of designs around here. From Antek the difference is $10 or $16 per transformer.
You can also look for something with 4 18vac secondaries (less common) which would still work for your dual mono setup.
I'm not tried them but Sumr is in Toronto: http://www.sumr.com/audio.htm
I don't know if Noratel deals with hobbyist quantities. Plitron used to be reasonably DIY friendly. Then there was a change in managment and the min order grew higher and higher and by the time of its acquisition by Noratel, it would only deal with manufacturers.
I would give serious consideration to just getting a pair of transformers from Antek, for example https://www.antekinc.com/as-4220-400va-20v-transformer/?
If you use USPS shipping then the worst that will happen is you will be assessed HST + $10 handling fee through Canada Post, as opposed to the nebulous and obscene brokerage fees from the big courier companies.
Good luck with your build.
I don't know if Noratel deals with hobbyist quantities. Plitron used to be reasonably DIY friendly. Then there was a change in managment and the min order grew higher and higher and by the time of its acquisition by Noratel, it would only deal with manufacturers.
I would give serious consideration to just getting a pair of transformers from Antek, for example https://www.antekinc.com/as-4220-400va-20v-transformer/?
If you use USPS shipping then the worst that will happen is you will be assessed HST + $10 handling fee through Canada Post, as opposed to the nebulous and obscene brokerage fees from the big courier companies.
Good luck with your build.
Some donut advice:
My plan is to add an SLB or Cap Multiplier when I move the amplifier boards to monoblock chassis come winter.
Since that will reduce voltage by 3 to 4 volts, what is the maximum safe donut volutage using the V8 CRCRC?
My plan is to add an SLB or Cap Multiplier when I move the amplifier boards to monoblock chassis come winter.
Since that will reduce voltage by 3 to 4 volts, what is the maximum safe donut volutage using the V8 CRCRC?
V8 is CRCRC (actually CCRCRC), so you'll get very low ripple out of the gate. Standard A30 would be 18+18V donut. I run my A30's with 20+20 donuts. If you're going with SLB you might want a 22+22 ish. Check the SLB docs on that. I have an outboard chassis with SLB, but I forget the donut voltage. It runs an M2, so stanard 24V First Watt PSU is required.
The V8 voltage limit is based on the caps you choose. More than 18+18V donut, get 35V caps. Then you're good for 20+20, 22+22. 22+22 with V8 will push the heatsinks depending on what you're using for a chassis.
The V8 voltage limit is based on the caps you choose. More than 18+18V donut, get 35V caps. Then you're good for 20+20, 22+22. 22+22 with V8 will push the heatsinks depending on what you're using for a chassis.
Thanks for the fast & clear response.
Out of curiousity, a related question:
The amplifiers will be running Quad ESL57s - a difficult load. On Patrick's The M2 Output Stage in Class A/B thread, he floated the idea of halving the voltage and doubling the current to drive difficult loads. Would that work here?
Out of curiousity, a related question:
The amplifiers will be running Quad ESL57s - a difficult load. On Patrick's The M2 Output Stage in Class A/B thread, he floated the idea of halving the voltage and doubling the current to drive difficult loads. Would that work here?