jwb5463
pfm Member
Yeah, but who listens for idle noise during an audition? Plus, move house and it's a whole new adventure
Naim-like amp that doesn't hum
- Thread starter jwb5463
- Start date
Arkless Electronics
Trade: Amp design and repairs.
Peter Stockwell
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That is a great price for that level of amp. No doubt about it.
@OP, I replaced a similar amp (2 x 350VA transfos) with the Bantam Gold, which I subsequently replaced with the amptastic, I have now reverted to the Bantam Gold, because it is more grown up.
Tony L
Administrator
What speakers are you driving with the Bantum T-Amp? Curious as I do rather like them, I have an Amptastic Mini 1 with a bench PSU driving my Klipsch La Scalas. It is rather good, but I don’t need power in this context as the Klipsch are insanely efficient. I view the Amptastic as a very low power amp, in reality about 6-8 Watts as its claimed 20 Watts is at distortion levels entirely unacceptable in any real hi-fi context. I stick with Harold Leak’s 0.1% as the maximum there and the Tripath TA2024 chip is nothing like that good at its rated output as far as I can tell.
uncl_nigel
pfm Member
I find that Osram led bulbs are quieter than most
Philips are quite good on that score too.
Peter Stockwell
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The Bantam chip is not the same as the tripath amptastic. I am using audium comp 5's, these are a pseudo full range speaker, in that the have a down firing bass unit in the base of the speaker, and they use, I think it's an 88 mm mid/treble driver for the rest. If you have hearing like a bat, you may find them lacking in sparkle. They are made in Germany.
I just love what klipsch speakers do like no other, la scalas are way too big for domestic bliss my way, but way way back, I had some klipsch forté II's and it's the speaker I most regret selling.
OK is it a Hum from the chassis?
What is your mains voltage?
How old is the amp?
The reason I ask is I did a lot of testing for Naim on there transformer design I even made two bits of test kit one now in Prague and the other in Salisbury.
lagavullin10y
pfm Member
I find that Osram led bulbs are quieter than most
Yes. I have about 20 of the Philips Hue bulbs. I had to bring back once a Philips Hue Light Strip since the power adaptor was making too much noise. I was lucky, even in the noisy shop it was clearly audible.
Recently bought some simple Ikea led bulbs and one of them was too noisy. Still need to go back to the shop.
lagavullin10y
pfm Member
Do they hum in two part harmony?
Yes, there is a clear synergy between them. When the microwave joins, the Supernait transformer gets upset. It must be pure jealousy.
linnfomaniac83
I bet you can’t wheelie a unicycle!
I’ve got one that used to occasionally hum (but not too loudly) until I made a couple of cork rings to dampen it down, worked a treat and is now totally silent. Ive had countless other linn amps and they’ve all been very, very quiet. Many of them uses switch mode PSUs and have done since the early/mid 2000s.
They’re a little different Naim but do offer a similar level of performance and are worth exploring. Densen is a good suggestions and are also worth a look, I do really like Densen.
Disarmamant
Certified foo free
I'd agree with your first statement, my D440 Pro (2xD220) is completely silent, no mechanical or electrical hum at all.
However the switch mode power supply has a planar transformer.
Quote from: https://www.devialet.com/en-us/expert-pro-power-supply
"Power supply relies on a central transformer based on planar technology. It serves two purposes: spreading energy in packets and ensuring the electrical safety of the product by isolating the hazardous areas. Compact and perfectly symmetrical, the central transformer is far superior to traditional solutions in terms of efficiency and primary/secondary pollution."
Lee T
pfm Member
I recently owned a Naim nait 5i (non italic model) completely silent.
My Nait 3 is the same.
Maybe I have magical mains
uncl_nigel
pfm Member
Followed the link and found no pricing
UK price is £1999 for the stereo version and £2999 a pair for the monos.
There are no prices shown because we export these to different countries around the world.
uncl_nigel
pfm Member
I was expecting something far less reasonable along the lines of "if you need to ask..."
Do they come n balanced versions? My favorite pre seems to work better balanced.
pjdowns
Living the Hifi dream
Why turn amps off when not in use?, they definitely sound better when left on in my experience.
Colonel_Mad
pfm Member
Richard Dane at Naim once said that when Holden and Fisher went out of business the same factory kept making the same transformers to the same design but they just weren't branded H&F. He described it as an urban myth that there was any difference and doubted that anyone would have noticed if the company name hadn't changed. It was some time ago though so I'm paraphrasing.
pjdowns
Living the Hifi dream
My amps are quite old now, which I suspect causes some of the problems I experience, but there is an audible whoosh (may should be called hum) sound if you go up close to the speakers when they are not in use. I have also heard the local Radio station coming through them very occasionally.
To be entirely fair though, it just doesn't bother me one iota.
To be entirely fair though, it just doesn't bother me one iota.