Hi,
I have a Rotel RB-991 which is not only a poor match for my speakers, but gets heavily slated on this site.
This was the original problem, now considering a more drastic solution.
http://www.diyaudio.com/forums/solid-state/170486-rotel-rb991-vs-acoustic-energy-309-fail.html
For a summary, speakers are very sensitive, amp only sounds good when being driven more than 20%, which is way to loud for my room.
Now I do not want to stick the RB-991 in the bin and start again, and I cannot sell due to some basic mods which have ruined the look of the case (speakon connectors being the main one.)
I am thinking that the transformer/power supply/main caps are worth keeping.
Is their a good DIY board that I could slot in where the current ones go, taking advantage of the good heatsinks, supply, caps?
Any suggestions?
I believe the rail voltages on this are 70v, might be wrong, not even sure if it is relevant.
Are these coke can sized caps just used to maintain the supply or are they used for something else?
A quick example of how sensitive these speakers are, would be what I am currently driving them with. A modded SonicT can happily drive these speakers to a level that is uncomfortable. I should add this room is large, 5mx15m.
I have no ideas where to start or what to do, so this is an early stage research.
Any suggestions/ideas?
No budget at the moment (as no job), so quite open on that (no more than a few hundred though, hopefully a lot less)
I have a Rotel RB-991 which is not only a poor match for my speakers, but gets heavily slated on this site.
This was the original problem, now considering a more drastic solution.
http://www.diyaudio.com/forums/solid-state/170486-rotel-rb991-vs-acoustic-energy-309-fail.html
For a summary, speakers are very sensitive, amp only sounds good when being driven more than 20%, which is way to loud for my room.
Now I do not want to stick the RB-991 in the bin and start again, and I cannot sell due to some basic mods which have ruined the look of the case (speakon connectors being the main one.)
I am thinking that the transformer/power supply/main caps are worth keeping.
Is their a good DIY board that I could slot in where the current ones go, taking advantage of the good heatsinks, supply, caps?
Any suggestions?
I believe the rail voltages on this are 70v, might be wrong, not even sure if it is relevant.
Are these coke can sized caps just used to maintain the supply or are they used for something else?
A quick example of how sensitive these speakers are, would be what I am currently driving them with. A modded SonicT can happily drive these speakers to a level that is uncomfortable. I should add this room is large, 5mx15m.
I have no ideas where to start or what to do, so this is an early stage research.
Any suggestions/ideas?
No budget at the moment (as no job), so quite open on that (no more than a few hundred though, hopefully a lot less)