Search found 21 matches

by Rettib2001
Sat Mar 09, 2024 8:48 am
Forum: DIY
Topic: Amp board replacement
Replies: 10
Views: 933

Re: Amp board replacement

Whilst setting up his games console my son unplugged the amp and speakers. When he plugged everything back in the amp started smoking. I quickly turned everything off and unplugged it so I didn’t get a chance to analyse what he’d done but I’m guessing some sort of speaker cable short circuiting by p...
by Rettib2001
Sat Mar 09, 2024 8:26 am
Forum: DIY
Topic: Amp board replacement
Replies: 10
Views: 933

Re: Amp board replacement

Here’s the damage.
by Rettib2001
Fri Mar 08, 2024 9:13 pm
Forum: DIY
Topic: Amp board replacement
Replies: 10
Views: 933

Re: Amp board replacement

Appreciate the replies. Funnily enough I did spot that ebay add, I'll keep an eye on it. My only fear would be mixing and matching differently aged boards. I understand the design won't have changed but there is something more reassuring about two brand new boards. I'm already inside the amp, I can ...
by Rettib2001
Fri Mar 08, 2024 4:54 pm
Forum: DIY
Topic: Amp board replacement
Replies: 10
Views: 933

Amp board replacement

Hello, Rather an unfortunate situation, one of the boards in my monoblock A80 MKII amps has fried (possible teenage son related cause). Is there a way of purchasing a pair of pre-populated boards (I'd rather replace both at the same time)? Am I right in thinking the boards are the same across the ra...
by Rettib2001
Wed Jan 19, 2022 5:41 pm
Forum: NVA Discussions
Topic: Nva a80 mkii upgrade
Replies: 14
Views: 26854

Re: Nva a80 mkii upgrade

Hi Paul, Thanks for answering so prompt. Looks like I’ll be needing an upgrade soon then. I have a second question which I hope you could help with. I need to buy some new speakers (currently using a pair of Epos es11). For a number of reasons, several wife related, I’m looking at vintage style larg...
by Rettib2001
Wed Jan 19, 2022 11:45 am
Forum: NVA Discussions
Topic: Nva a80 mkii upgrade
Replies: 14
Views: 26854

Nva a80 mkii upgrade

Hi, I’m at a bit of a crossroads. My Nva a80 mkii monoblocks hum. Nothing new there I guess but following a house move I’m closer to them than I was before and given that I leave the amps on 24/7 I can’t get past the background noise when I’m in the room not listening to music. I have tried both wit...
by Rettib2001
Tue Nov 09, 2021 1:34 pm
Forum: NVA Discussions
Topic: Amp a/b switch
Replies: 5
Views: 7888

Re: Amp a/b switch

Thanks a lot for all the replies and for drawing my attention to both further potential issues as well as possible solutions. To be honest I think the safest (not cheapest) way to achieve what I would like to do is to replace my current AVR with one that has preouts for front L/R. That way I can jus...
by Rettib2001
Tue Nov 09, 2021 10:03 am
Forum: NVA Discussions
Topic: Amp a/b switch
Replies: 5
Views: 7888

Amp a/b switch

Hi, I would ideally like to run my all NVA setup for stereo listening and add my AVR for TV/Movies as the room correction really helps for that type of content. I have a simple amp A/B switch box made by Dynavox. It works well in this scenario with amps that aren't NVA as I can just use any speaker ...
by Rettib2001
Mon May 03, 2021 9:36 am
Forum: DIY
Topic: NVA PRE load resister value
Replies: 2
Views: 1659

Re: NVA PRE load resister value

Wow.

That explains that...

Thanks for replying so promply Paul.

I'll get the right ones ordered straight away!
by Rettib2001
Mon May 03, 2021 9:15 am
Forum: DIY
Topic: NVA PRE load resister value
Replies: 2
Views: 1659

NVA PRE load resister value

Hi, I've just added a P50sa to complete my NVA setup: BMU, Phono 2 dual power supply, MKII a80 Monoblocks I got the P50sa off an aquaintance (for free) but he seems to have changed the load resistors on the stepped attenuator to : 10R 0.4W Charcroft Z-Foil Resistor Is that the right value?! With vin...