Chienmortbb Posted September 26, 2023 Share Posted September 26, 2023 On 31/08/2023 at 18:43, The Funk said: It seems the potentially lethal stuff is hidden away underneath this top layer, for relatively quick and safe valve changes. Judging by all that iron, that must be well over 50lbs/23Kgs. Good luck with that, but as mentioned by others, if the mains transformer is as suggested, then it should be a simple thing for a tech to rewire. Remember to be sure to lower the fuse rating if going from 110 to 240. Just over half would be my recommendation and use the same type of fuse as there may be a big inrush current before the transformers settle down. If in doubt, post a picture on here with the writing on the fuse can clearly seen. Good Luck. 1 Quote Link to comment Share on other sites More sharing options...
BassmanPaul Posted September 26, 2023 Share Posted September 26, 2023 Nice catch! I meant to mention the fuse change. DOH! Quote Link to comment Share on other sites More sharing options...
Chienmortbb Posted September 27, 2023 Share Posted September 27, 2023 18 hours ago, BassmanPaul said: Nice catch! I meant to mention the fuse change. DOH! Yes and no nails or tin foil please. 🔥 1 Quote Link to comment Share on other sites More sharing options...
jermng Posted April 4 Share Posted April 4 Hi @The Funk did you end up finding a solution to changing the voltage for your amp? I'm in the exact same situation - bought a new DB751 (from Swee Lee no less), but turns out it's rated for 120v. Any help or direction will be much appreciated Quote Link to comment Share on other sites More sharing options...
BassmanPaul Posted April 4 Share Posted April 4 (edited) Post a picture of the back panel please. I went through the manual on Aguilar's site but could find no mention of changing the mains voltage. It might be that this is accomplished by changing out the power transformer. If this is true you might have to resort to using an outboard 240V to 120V transformer. Edited April 4 by BassmanPaul Quote Link to comment Share on other sites More sharing options...
jermng Posted April 5 Share Posted April 5 9 hours ago, BassmanPaul said: Post a picture of the back panel please. I went through the manual on Aguilar's site but could find no mention of changing the mains voltage. It might be that this is accomplished by changing out the power transformer. If this is true you might have to resort to using an outboard 240V to 120V transformer. Hi @BassmanPaul - here is a pic of the AC portion of the back panel. Seems like it's possible change the fuse and swap out some internal wiring. Similar to the original poster, I've had a 120v DB659 previously that I emailed Aguilar and they gave clear instructions how to change. Even sent me a link of where to purchase the different fuse. Those were the good old days when someone from Aguilar actually looks at support emails. Unfortunately I emailed Korg (the support email on the Aguilar website) but havent heard back (yet). Any input or help would be most welcome. Quote Link to comment Share on other sites More sharing options...
agedhorse Posted April 5 Share Posted April 5 Without seeing the power transformer, there’s no way to know. They MAY use a different transformer in the European builds. Just because the chassis can be marked 230/240V doesn’t automatically mean that it has a universal primary transformer. 1 Quote Link to comment Share on other sites More sharing options...
BassmanPaul Posted April 5 Share Posted April 5 (edited) I feel that a step down transformer is the way you'll have to go in this case. For interest how did the seller use the amp? Edited April 5 by BassmanPaul Quote Link to comment Share on other sites More sharing options...
BassmanPaul Posted April 5 Share Posted April 5 I see Swee Lee is a company in Singapore. Sorry I've not heard about them before. The moral of the story is that when ever buying from abroad you should specify what voltage you want to operate the unit on. there again Singapore operates on 230V 50Hz close enough to the UK standard. Did you try contacting the company to see if they can do anything for you? Quote Link to comment Share on other sites More sharing options...
BassmanPaul Posted April 5 Share Posted April 5 I took a look at our Amazon here in Canada. They had a suitable transformer for under $100. I couldn't find a UK version of Amazon and the .eu site didn't seem to be navigable. Maybe they work adifferently over there. Quote Link to comment Share on other sites More sharing options...
The Funk Posted April 6 Author Share Posted April 6 To finish off my story, I got the conversion done by a reputable audio electronics shop in Singapore called Well Audio Labs. Swee Lee is the authorised repairer / service centre for Aguilar in Singapore and they contacted Korg for a copy of the schematic which they passed on to my tech. Swee Lee told me that they also could have done the job. It was a relatively simple job for a professional but not a suitable task for an amateur like me. I think it involves swapping over a few wires on the power transformer and changing a fuse or two. In hindsight, I think Korg were trying to prevent me from harming myself or the power amp. It is a great power amp, which is designed for voltage conversion to be done safely by a professional, and customer service at Korg still works after the acquisition of Aguilar. If you are looking for one of these on the secondhand market, don’t be put off if it would require voltage conversion. Aguilar thought of that when they designed them. 1 Quote Link to comment Share on other sites More sharing options...
Chienmortbb Posted April 6 Share Posted April 6 Good news. I would not go down the step down transformer. If you think of the power of that amp…. Quote Link to comment Share on other sites More sharing options...
BassmanPaul Posted April 6 Share Posted April 6 I'm glad you got the problem sorted. Now play the amp and enjoy! 1 Quote Link to comment Share on other sites More sharing options...
agedhorse Posted April 6 Share Posted April 6 Just CONFIRM that any amp you might be looking at that requires a conversion actually has a universal primary transformer. This is not always the case, and some amps may be shipped with a region specific transformer even though others of the same model may not. I see this a lot. 2 Quote Link to comment Share on other sites More sharing options...
The Funk Posted April 22 Author Share Posted April 22 On 07/04/2024 at 03:41, agedhorse said: Just CONFIRM that any amp you might be looking at that requires a conversion actually has a universal primary transformer. This is not always the case, and some amps may be shipped with a region specific transformer even though others of the same model may not. I see this a lot. Good advice. I have heard - perhaps from you earlier but also from the tech who worked on my amp - that products for the Japanese market are designed to prevent voltage conversion. I was lucky that my one, which I purchased from Japan, turned out OK. 1 Quote Link to comment Share on other sites More sharing options...
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