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March 15, 2021, 04:08 AM #1Junior Member
- Join Date
- Mar 2021
- Location
- Italy
- Posts
- 1
Toroidal transformer suitable for Mundorf Mlytic recaping of Audiolab 8000A
I did upgrade the two big PSU caps of my Audiolab 8000A replacing the 25year old Elna 10.000uf 50v with new Audio Grade quality caps Mundorf MLytic 15000uf 63v. Since the toroidal transformer is rated 230VA, adding 50% of extra capacitance with the Mundorf Mlytics, means proportionally higher current pulses to recharge, taking the transformer out of its designed envelope. Not a massive problem at low levels, they say, but when driven hard for long periods, the transformer WILL overheat.
As I need to change the transformer, (because it started to hum) do you suggest choosing a higher power rated transformer all the way or fit with original Talema transformer rating? Should it be 250VA perhaps? because I have no idea what the new transformer power rating should be in order to suit these new Mundorf Mlytic caps without overheating. Is there a way to calculate that?
thanks
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March 15, 2021, 09:37 AM #2Senior Member
- Join Date
- May 2017
- Location
- Cleveland, Ohio, USA
- Posts
- 531
Re: Toroidal transformer suitable for Mundorf Mlytic recaping of Audiolab 8000A
a] much larger capacitors are sometimes hard on the bridge rectifiers.
b] don't recall any reason way they would be hard on the transformer.
c] transformer hum is often caused by higher line voltage. (especially toroidal ones) (in the US 125V is not uncommon)
d] if you get new transformer, get one rated for a higher line voltage.
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AudioShark forum is a leading forum site for High End Audio Discussion, Stereo System Discussion, Home Theater System Discussion, Best Home Stereo System Discussion, Home Theater Installation Discussion etc.
The AudioShark forum was created for sharing the passion of high-end Audio. We have Audiophiles from all over the world participating and sharing their knowledge. From novice to experts, you will find a friendly environment for discussing about High End Audio, Stereo System, Home Theater System, Home Stereo System, Home Theater Installation, Amplifiers, Speakers, Subwoofers, Integrated System, Acoustic treatments & Digital Room Corrections and many more.
At AudioShark, we also have incorporated an exciting Marketplace where members can peruse terrific buys on used gear, as well as meet dealers and discuss the purchase of new gear.
We are as crazy about this hobby as you are! So come on in and join us! Audioshark.org the Friendliest Audio Forum!
Industry Participation Disclosure : The owner and administrator of Audioshark is the owner of Suncoast Audio LLC in Sarasota Florida. Suncoast Audio has a full brick and mortar presence in Sarasota with several great show rooms with many world class brands. More information can be found at http://www.suncoastaudio.com
Audioshark is a community of like minded individuals. Audioshark welcomes participation from all manufacturers and owners of all brands and products. It is our belief that online forums provide a community of like minded audiophiles and music lovers to encourage the growth of this wonderful hobby.
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