Hi,

Back in January I bought a Yamaha RX V450 AV receiver : http://www.superfi.co.uk/index.cfm/page/moreinfo.cfm/Product_ID/1926

and a set of Acoustic Energy AEGIS EVO THREE floor speakers:
http://www.acoustic-energy.co.uk/products/aegisevo/aegisevoloudspeakers.html

When I hooked it all up and played some music it sounded great, I then turned the volume up and the the amplifier cut out. When I turned it back on the display said CHECK SP. WIRES. I checked the wires, and couldn't see any obvious signs of where bare wires might have been touching. I assumed that the wires i was using were a bit dodgy, as there was a number of joins i had to make so that it would reach.

I bought some better quality speaker wire but did not bother attaching it until last week as I was waiting until I moved house.

It turns out that even with the good speaker wire the amplifier still cuts out when i turn it up past a certain volume.

Can someone suggest to me what the problem might be, as i really don't know what to do. It is as if the amplifier thinks the speakers can't handle it, or maybe the cut-out is a bit too sensitive, surely this is not the case.

Have you tried adjusting the speakers settings in the receiver menu...?

You've got a choice of three settings for the speaker on my 350! Small, Medium and Large!

Maybe if you've got it set on small, it's cutting out at a certain level to prevent your speakers blowing?

i've tried small, medium or large, the same happens each time.

You say the amplifier actually cuts out... It turns itself off?

Does it go into standby mode or shut off?

If it's not the wires shorting, then it sounds like the units overheating...

I'd rewire it and if it still doesn't work, send it off under warranty as it sounds to me like the units the problem as opposed to the wires you're using!

it goes to standby, then when I turn it back on it comes up with the check sp wires error. It does get vey hot quite quickly when i'm listening to music.

I think you might be right, the best thing to do would be to send it back.

hi. i stumbled onto your conversation (always late but never never). i had the same frustrating experience and won the check sp wires blip by changing my channel output back to 4 from 6 on my new yamaha. i get into more trouble acting out on "what would happen if i......"

What do you mean exactly?

how do i change the channel output?

ew...........well, i'd have to repeat my mistake, and then repeat my screwing around.........hm lemme see..........

got it! I set the straight effect, then advanced the program button 1 click and wallah (sp?) off she went just after I saw "6 spkr". not sure how many times I can get away with this but as soon as the sys turned on I wasted no time to undo my efforts. smiling
Kelly

Fallible - 'Wallah' is indeed a spelling mistake I believe you were looking for 'Voila'.

it's been a few weeks since the last post on this subject, a few problems with my computer which i think i'll have to talk to another forum about.

fallible, your last post doesn't really make any sense. are we talking about the same thing problem/amp here?

after you press the straight button, pressing the program button does not affect anything.

the amp still cuts out when i want to listen to my music loud.

I think i'm just going to have to pay £20 to send it back unless anyone has any better ideas.

The only other thing i can suggest is checking the impedence on the amp (http://www.superfi.co.uk/extras/Yamaha/RXV450_instructions.pdf - page 20).

Either that or contact Yamaha and ask them...?

changing the impedence doesn't change
anything

I'm out of ideas then i'm afraid mate!

nevermind, thanks anyway

Hey,
Thought I'd join in if you've still got the amp?
After reading a few threads, I would have suggested the impedence, but sounds like you've tried this.
The only time this has happened to me was when I had my speaker wire going around the room and I had tucked it under some carpet. Well, round the edge of carpets, you have some quite sharp nails/tacks to keep it secure and this was penetrating my cable, and this in turn, made the amp cut out at a certain volume.
Other than that, I'm out of ideas!

clever discovery. now, how did you get the carpet retacked nicely....or is that another site here...........

bottom line, good thinking Mr Anderson

i have been haveing the same problem with my yamaha amp..i got 2 AS-F2.2 Athena Floor Speakers rated at 8ohms as my main fronts and the rest of my 5.1 system is athnea sattlite speakers rated at 4ohm...my amp is set to 4ohm's..i have changed all the speaker wires but i still get the sp wire error after my amp propmtly shuts itself down when i try to listen to music loud..is the concensus's still that the prob is bad wires or something else..i am going to check all my wires with a meter tommorrow to eliminate that aspect..


shit just realized that this thread is over 2 years old..LOL..well maybe i will get lucky and somebody has a fix :)

I still have the problem, just learned to live with not turning it up v.loud. Pretty lame really, I'm a bit lazy.

I reckon it might be my speakers, who knows.

Let me know if you come up with anything

Hey Guys,

I just re-wired my system with 12AWG wire and banana clips both at the amp and speaker. "STILL GETTING CHECK SP WIRES" i have the RXV-1600 should be a quality amp. I have a call into YAMAHA if they have a fix i'll let you know.

Bill