Native_bon said:So u bought up to seven CA amps & not at one piont did you think of not buying an more of these humming CA amps..? I find that very hard to believe.matthewpiano said:Native_bon said:Thats not just the it is... The way it is.. is do something about it. when you get so many people having the same problem from the same company then its a bad design. When this topic was brought up last year so many people report the same problems of huming.. with rega amps so this is not a case of just a one of or few amps..davedotco said:Richard Allen said:Hi.
For what it's worth, I'm building an amp and I went to a toroid maker and gave him the spec I needed and he went out of his way to warn me that toroids do tend to hum a bit. When I asked him why he said that no 2 toroids are EXACTLY the same. One might buzz a bit under load and another won't. I asked him why and what I was told was that toroids are essentially wound as 1 offs. At which point I said to increase the Va of the toroid and he advised me that if he did that the sound quality of the amp could be compromised ( spelt that right?? ).
With large transformers, the toroid is the less expensive way to go. True, a laminate won't buzz like that but it'll be twice the cost and huge and weigh a ton. Just seems to be something with toroids which seems to be exaggerated with 'c**p' on the mains line sometimes.
That's the way it was explained to me anyway.
I know this doesn't help the OP though because it's annoying when it happens although out of all the toroids I've used over the years, most of them have been NOVATEL and none of them have buzzed. Not even the 1000Va.
It is the combination of the characteristics of the toroid and the characteristics of the mains distortion that cause the problem. I have experienced mains so poor that virtually any piece of kit that you try will hum and buzz but that does not appear to be the issue here.
The previous amplifier was quiet and the likelyhood is that the next one you try will be too, inconveniant sure but surely not that big an issue when you have the assurance of the manufacturer that it will be sorted.
The reality is that this is a (relatively) mass produced amplifier built to come to market at about £1500. The transformer is, along with the case, the most expensive component in the amplifier so costs here are crucial.
As Richard points out a laminated transformer will be far more expensive, a 'guaranteed' noise free toroid could probably by built at a price, but would anyone buy an Ellicit-R at £2500?
And why should theyhave to, in my experience this sort of problem is relatively rare, and the number that can not be solved by swapping the amp for another sample rarer still. The amp is fine value for 90+% of the people who purchase it, that's just the way it is.
Edit. In my experience all brands of transformers that I have seen used in hi-fi can hum and buzz in certain situations.
I have bought some many amps including cambridge audio which uses a lot of toroid mains power & never once did I hear any huming...
You were very lucky then. I have owned, at various times, several Cambridge amps including 340A V2.0, 540A, 640A V2.0, 650A, and 740A. Every single one has exhibited some buzz/hum from the mains transformer, as did both of the NAD C326BEEs I had and a C325BEE.
On the other hand none of the Arcams, Marantz or Rotels I've had have produced any humming noise at all.
BIGBERNARDBRESSLAW said:This for example, is not only an ugly mutha, but it's ridiculously priced. Would anyone buy this at this price? http://www.whathifi.com/review/dartzeel-cth-8550/specs
JamesMellor said:BIGBERNARDBRESSLAW said:This for example, is not only an ugly mutha, but it's ridiculously priced. Would anyone buy this at this price? http://www.whathifi.com/review/dartzeel-cth-8550/specs
Elton John ?
BIGBERNARDBRESSLAW said:Manufactured on the cheap in England then.
I wasn't picking on Rega in particular, but I do feel some of these companies are taking us buyers for a ride sometimes.
What exactly goes in to a no frills amp to make it worth £1600? IMO, it really should have the best components available, and it should last a very long time if treated properly.
This for example, is not only an ugly mutha, but it's ridiculously priced. Would anyone buy this at this price? http://www.whathifi.com/review/dartzeel-cth-8550/specs
radiorog said:Hi-FiOutlaw said:I've been away from this thread as I don't own a Elicit R and didn't like it in my system. But the thread is going off topic and now people are talking about Rega Brio R, let me add that my Brio R was in my rack for 1 year turn on 24/7 and never humed!!!
Rega sold this AMAZING amp by the hudreds and if all humed Rega had a big problem in hands, i think it's a bit unfair saing that Rega has a "genetic" problem.
I understand your concerns about bringing the brio r into this thread, but I was raising my concerns that it does appear to be an issue rega has in general with some of its amps.
I understand too that many people have had no issue, but I went through 4 amps in a month, and 3 had excessive humming, 1 was buzzing like a drill with buzzing also coming out of speakers. To me, 3 out of 4 buzzing amps seemed to be statistically relevant to warrant me posting some concerns I experiences.
matthewpiano said:Steve, the problems just seem to be mounting up. First your strange sound problem on Elicit-R 1, then the humming on Elicit-R 2, and now this new issue on Elicit-R 2, not to mention the other forum member who had a channel fail on his Elicit-R.
I know you love the sound, but how long do you want to keep being Rega's quality control?
For me this new issue would be the final straw. I wouldn't expect these issues on a £300 amp, never mind a £1600 one.
stevebrock said:Sorry guys to labour this problem anymore but have just discovered another issue!
When I have the amp on Input 1 (phono stage) and the volume about 1 o clock (dont forget the volume control range is more usable than most amps) there is high pitched buzz from the speakers that I can hear quite loudly from the sofa)
This only happens on Input 1 - This amp will definately be exchanged on Saturday.
matthewpiano said:Steve, the problems just seem to be mounting up. First your strange sound problem on Elicit-R 1, then the humming on Elicit-R 2, and now this new issue on Elicit-R 2, not to mention the other forum member who had a channel fail on his Elicit-R.
I know you love the sound, but how long do you want to keep being Rega's quality control?
For me this new issue would be the final straw. I wouldn't expect these issues on a £300 amp, never mind a £1600 one.
Covenanter said:matthewpiano said:Steve, the problems just seem to be mounting up. First your strange sound problem on Elicit-R 1, then the humming on Elicit-R 2, and now this new issue on Elicit-R 2, not to mention the other forum member who had a channel fail on his Elicit-R.
I know you love the sound, but how long do you want to keep being Rega's quality control?
For me this new issue would be the final straw. I wouldn't expect these issues on a £300 amp, never mind a £1600 one.
Absolutely right. If they can't make an amp that doesn't hum ...
Chris
Hi-FiOutlaw said:radiorog said:Hi-FiOutlaw said:I've been away from this thread as I don't own a Elicit R and didn't like it in my system. But the thread is going off topic and now people are talking about Rega Brio R, let me add that my Brio R was in my rack for 1 year turn on 24/7 and never humed!!!
Rega sold this AMAZING amp by the hudreds and if all humed Rega had a big problem in hands, i think it's a bit unfair saing that Rega has a "genetic" problem.
I understand your concerns about bringing the brio r into this thread, but I was raising my concerns that it does appear to be an issue rega has in general with some of its amps.
I understand too that many people have had no issue, but I went through 4 amps in a month, and 3 had excessive humming, 1 was buzzing like a drill with buzzing also coming out of speakers. To me, 3 out of 4 buzzing amps seemed to be statistically relevant to warrant me posting some concerns I experiences.
I was very sad to let mine go, but needed to cash in the money as my system is growing by the hour...
Enjoy your Brio R and if you don't already have, you need to buy a TT and take full advantage of the built in Phono stage... :twisted:
stevebrock said:Input 1 is the in built phono stage
However when I unplug the TT from Input 1 the humming is worse!!!!!!!
stevebrock said:RP6 nagaoka mp200