Quote Originally Posted by Feanor View Post
I think I can address this one; if anyone has better insight, please speak up ...


With the Sure IRS2092-based module you need a full power supply not just a transformer. The amp module specs suggest 55 - 65 volts; (you'll need to be closer to 65V for full power). The power supply can be a switching mode power supply (SMPS) or a linear supply. If a linear supply, for say +/- 60 volts, you'll need a transformer capable of 60V/1.4 = 43V, that is, +43 volts and -43 volts with a common ground. Also I'd guess you should be looking for 8+ amps output capability. Thus model Antek PS-5N42 might be better.

The Sure Store seems to sell only SMPS; (they are self contained and don't need a transformer). If you want a linear supply you'll have to find one elsewhere.

Another Internet provider that I've heard of is Connexelectronic, HERE. They have a pretty good range of Class D and Class T amp modules as well as SMPS and linear power supplies, (but no transformers). So for the Sure module, Connexelectronics can provide their PS2-6C dual rail linear supply, HERE. You'd need at least their 63 volt, 10,000 uF version or better yet, the 71 volt, 18,000 uF ...

Ok, I went back and gave this post a closer read. So if I am reading it correct, for the Sure board I could get either the Connexelectronics 18000 uf or the Antec PS-5N42 but I would need a transformer with either one.
Or
I could go with the Mean Well 48V which would take care of both power and transformer.

Is that correct?

Could you tell me which might sound cleaner and provide optimum power and also recommend a transformer?

I think I am going to go ahead and order the Sure board as I do really want to get all my speakers up and running.

Also, do you know of any instructional videos or how to step by step instructions to assemble the 254 from Class-D audio? This is still the week point of these kits.

I have ordered a couple electronics books and have began reading them. I think I am going to be fine but it is totally different than wiring homes;>)
Thanks Feanor