2. amps-preamps
  3. 131501-88991

PrimaLuna Dialogue Premium Preamplifier. DESTROYS SPEAKERS!!


A few months ago, bought TWO of the above mentioned preamps. ( I have 2 stereo systems)
Within 6 weeks of the purchase, the power supply of my speakers burns out!
I purchase and replace the power supply.
Three days later, the second newly replaced power supply is burnt out!
After much investigative work and heartache, I discover that the Pre amp is the problem.
It is defective and puts out DC. which burns out speakers.
After, testing the second unit, I find that it is defective as well, EXACTLY the same problem.
I return the units to my dealer, who returns them to Prima Lune.

I received a phone call from a Mr. Kevin Deal, big cheese at PrimaLuna.
Told me that the capacitors, on BOTH units had failed and the units were putting out DC.
He even THANKED me, for being a guinea pig, and discovering the flaw in his units.

He offered me a pair of tubes, as "compensation" for my troubles!! What a joker!!

WOW, a pair of tubes for blowing my $30,000. speakers!!

The height of arrogance and total disregard for the consumer of his product.
To all audiophiles, do yourself a favour, STAY AWAY for this brand, unless you want your speakers cooked.

TOTAL lack of quality control, MADE IN CHINA junk, what more needs to be said.


Mr. Deal, WAKE UP, and STOP selling defective products!!


If, you are using PrimaLuna, and your speakers fail, check the amp or pre amp.

George


Montreal, Quebec, Canada.
thorloki
johnss
575 posts
 
would agree with many of other posters here. I have 4 of the PLs, one pre amp and 3 amps, two dialogue premium amps and one prologue 4 (not to mention many other tube amps). None of the PLs have their stock coupling caps or load resistors so can't speak from personal experience on the stock caps, but the build quality is first rate, just as PL's advertising states. Was quite impressed with the level of build quality in these units.
 
It is interesting to note that Solen/SCR caps are the OEM caps used in the Dialogue premiums. These caps are quite reliable, so pretty remote odds that two pre amps both had defective caps.

The amps and pre amp also respond well to tube rolling.  I'd would add you have not heard the PLs until you have some copper foil coupling caps in them....they jump to another league....

best


willemj
1,036 posts
 
Quote from Thorloki: 'I received a phone call from a Mr. Kevin Deal, big cheese at PrimaLuna.
Told me that the capacitors, on BOTH units had failed and the units were putting out DC.'

Quote from me about that other case: 'The PrimaLuna had a leaking capacitor that passed DC to the power amp'

To me that sounds pretty similar.
shadorne's avatar
Ag insider logo xs@2x
shadorne
7,477 posts
 
@jaybe 

I saw electrical ties used to anchor large caps and a lot of heavy parts soldered together on their legs rather than mounted neatly on boards and anchored with clips. I would think this build would be fragile and not easily to be entrusted to the hands of a typical chuck It around courier. 
almarg's avatar
Ag insider logo xs@2x
almarg
9,670 posts
 
Willemj, the Thorloki statement quoted in your post just above was in his original post, of course. Subsequent posts by me and by Atmasphere, as well as a subsequent reference by Mr. Deal to his tech’s suspicion of an oscillation, all add up to it being a near certainty that the issue with Thorloki’s preamp had nothing to do with it outputting DC. In contrast to the other case that you have cited.

Regards,
-- Al

jaybe
743 posts
 
@shadorne

Doesn’t prove anything. Readers of this forum know you are often hasty to make unfounded comments, particularly in regard to Asian manufacturing. I’m guessing that the answers to my previous questions are "no", you’ve never been in a plant like this, particularly in Asia, where quality can be as high as it is in any Western country. And to pass judgement on how ship-worthy the product is, is just, well, asinine.
More to discover