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
I am not defending PL. I don't own an PL gear. I think it fairly clear that KD is acknowledging a problem with the OP's preamps. My protest is with respect to the over-arching demand that every piece of PL gear be recalled and inspected. Chicken Little is screaming that the sky is falling down. Name just about any complex product known to mankind-cars, refrigerators, and yes, audio gear, and there are defective samples. Look how often the gear sent to S'Phile for review demonstrates a defect! Shite happens. My 2017 VW Golf GTI has a drivers side mirror plagued by excessive wind noise and a windshield that is badly distorted on the passenger side. I am not calling for VW to do a product recall over these two defects. They have enough problems with recalls :-).
@ibocquin Hm, Its been a bit of a mystery to me as to why Krell has been spreading a false rumor that tube preamps push DC; I'm thinking that your experience might explain it.

@erik_squires  With regards to the PL preamp- if a high frequency snubber cap, the failure may have caused the preamp to make ultrasonic noise powerful enough that the amp made enough power to damage the speaker. If that is the case, my theory about the AC line may be out the window.
It ain't just us audio geeks with our precious and pampered gear piles who crave tubes, there are millions of happy tube guitar and bass amp users dragging these things around the world or just staying home and enjoying the reliability and tone of what is basically the Industry Standard. Old leaky caps in my Deluxe…worked fine for 50 years...
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@atmasphere and that's why I am confused.

The OP said specifically it was DC and that he damaged his speaker, not his amp.

<< shrug >>

Not a big deal.

Best,

E