Size matters? You may consider something like the KEF KHT3005SE which is around that price range OR if you're into big speakers, at this price, they're quite square and boxy. There're many decent brands for i would recommend you B&W 600 series and KEF Q series, as always

Look and shop around, there're some other brands you may also consider as B&W/KEF might not be your type of sound but they're generally very good. For your Yammy, i'll recommend KEF as B&Ws are more difficult to push.

Dont waste your $ on changing the power cord. If it has been functioning for the past one year, likely your power supplies isnt the issue.

I suspected the protection circuitry is the cause. One of the sensors must have sent the wrong signal back to the CPU triggering the shut down to protect the system itself. Another possible cause is the voltage fluctuation, however, if your 5 mins shut down can be repeatedly achieved without given soundtrack, volume gain or time, then the voltage fluctuation shouldnt be the main problem.

As well, did you changed your speakers, speakers cables lately before the Yammie went into shut down mode? Some speakers are very hard to drive which can cause the amplifier to oscillate and shut down. Loose speaker cables or shorting of them will trigger immediate shut down of the amplifier so i doubt it'll be the case.

Do check them all but i think your amp needs a service

I afraid you need to recheck your speaker connections once more to confirm they're well secured.

If you're sure of it, then there's a chance that the loose speaker cables connection has caused damage to your amp. There shouldnt be a power supplies issue so dont waste $ changing the power cord.

Do a quick test. Take all your speaker cables off from the receiver and run it with the same volume gain for the 5 mins and see if it shuts down. If it does, then it's internal problem of the amp already else then it has got to do with the speakers/speakers cable as well but can still come back to your amp when there's the load then it got shut down.

Interesting enough..but anyway it's good to know you've your system up and running fine

Your RXV-373 (referred as receiver here) should have a few hdmi in and 1 - 2 HDMI out. Connect your bluray player hdmi out to your receiver hdmi in and connect the hdmi out from the receiver to your tv just for the video out. Connect the rest of the components you have using the hdmi to your receiver or component video, s video, composite video or analog audio into your receiver accordingly. You'll have to setup in your receiver of each input to capture the respective sources accordingly.

The hdmi out from your receiver should be connected to your hdmi 2 of the tv to enable the ARC feature if your receiver allows it. Remember to set your receiver to decode all the sound of the hdmi (some referred as "amp mode" in the manual) so the sound will be output through your speaker system.

Hope this helps.

Lolx..sometimes these ppl also not consistent one..maybe did some high end deals the day before or the week hence still cannot adjust back to the reality that majority of us is still entry level folks. It's good that they actually even entertain you because i usually got their RRP without even a cent discount. Dont know who they're targeting, entry, mid atau high end?

I find hiwaylaser is more consistent in their approach these days which i felt consistency in not discriminating the walk in enquiries irregardless buy on the spot or not is the way to go. If your price is competitive enough, there's no worry that the customer wont buy from you but if we have to pay premium for what's supposed to be attitude to serve you, then i think it's a rip off and there're many shops here in Malaysia that have such attitude..maybe partly due to the spoilt apples as well. Some customers are just unimaginably annoying and unreasonable in their approach.