when 50 watts isn't enuff

I have managed to induce my musical fidelity a1000 to overload.

I was playing an enya track of all things, and there is a vocal transient, I will have a look later for the name.

I don't know if its overloading the preamp or the voltage or current clipping.

This is odd, as there is 60000uF resevoir per channel, and 8 output transistors per channel, though they are not all paralleled.

Perhaps the voltage rails are not very high.

The volume control is about 1/2-2/3 the way up, so not really really high.

Certainly a 12 watt valve amp I had couldn't handle some really low bass, I suspect the output transformers were saturating on a Mel C track that had really deep bass.

It is making me rethink what you need.

Speakers were proacs and missions, not really demanding...

 

.... or maybe there's a problem with the amp. Hopefully that's not the case

 

I thought that at first, but no the amp is fine, it behaves on everything else, I tried another 40 watter, and that did the same, less harsh, but still clipped.

 

What's their sensitivity? I'm sure you've read the bit in the MF A1000 manual which mentions that they strongly recommend you use it with 8ohm speakers of at least 89dB sensitivity

Mind you - a friend of mine here in Portugal has an A1000 and is using it with Dynaudio Craffts which are 86dB and 4ohms A tough load indeed but it seems to work well enough. He has mentioned that the amp clips at very high volumes though...

Michael.

PS: there's an A1000 on eBay atm with no reserve - currently at just £280 but a while to go before the auction ends:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3066462600&category=3280

For less than £1K (it will probably go for around £6-700) it's one of the best amps I've ever heard, if you have reasonably sensitive speakers and are looking for an amp I'd go for it

 

Enya and Mel C?

You don't need 50 watts of anything...

You need an Alba midi-system and psychiatric drugs.

 

Hello Anna,

tell me, what do you do when you're not full-time trolling?

 

I like to play with my vagina.

 

Markus, small wager here sir ?, Bub/Marco/Dev (B)/Other?, over to you. Tone

 

Interests: saving whales

Could this be a clue?!

 

Curiouser and curiouser said Phallus.

 

Back on topic...

Apart from speaker sensitivity, I wonder if the other culprit could also be the reactance the overall speaker load that the amp sees i.e. the speaker themselves and the speaker cable (if you run very long speaker cables I suspect this could be more of an issue).

Aren't solid state amps supposed to more stable/tolerent in reactive speaker loads with dynamic peaks on programme material?

 

Perhaps God is punishing him for his taste in music.

 

Got a picture?

Somehow, I doubt you have a vagina of your own you could play with.

WM, it's not really Marco's style. Bub would be nearer to the mark, he enjoys the forum variety of sexuality more, AFAICT. Dev B? Nahh.

Maybe the mods could check the IP address and see if it leads them somewhere. Not really necessary, though. So far, here's no harm done, so let's play with 'Anna' some more.

 

Hello Anna mate

 

In a probably futile attempt to stay on topic:

Data, have you checked the CD? There are CDs with encoded distortion. Play the CD on another system, or at a lower volume, to see if what you hear is eally the amp.

It's a little od to have the amp overload on a vocal transient. Voices can tax a system, but with transients? Must have been some compression+limiting going on.

 

Off topic again:

Anna, you're my kind of gal'!

Her new interest: Doctoring the house! Snigger. Alex S., I'd say.

 

He's really FREE

Markus
Anna K is really Free Willy aka anarchy...
Free, are you back on or off the meds at the moment?
Doesn't really matter, since I don't suppose you'll be allowed to linger long.
Good to know you're still alive, though.

Joel

 

Thanks for the enlightenment, Joel.

 

Sugar my daddy.

 

Gary - your heading rapidly for your third banning

Michael.