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Actually qstieee I recall you may be correct - there is a tiny sticker on the back of one of the baffles with a number (serial I suspect). Forgot about that!

I can confirm the CTS history as accurate. Learned it firsthand from someone who worked with Carl M. That said, $850 for a pair with original caps and not mirror imaged seems a stretch. But it is

Mine without serial numbers (neither paper inside nor stamped on back terminal circle) are early because no fuse in back. Earlier - with paper serial number tag inside - it is easy for glue on that

Here u go. [email protected]> wrote:

There was a set on eBay not long ago sold by a store that said he had researched the subject. His were first 6 months of production based on serial number and the fact the early ones had a woofer made

They could have been non mirror? imaged and latter turned into? mirrow imaged speakers On Wed, Sep 23, 2020 at 1:07 PM, w e<sky27709@...> wrote: So my question remains....does the lack of

So my question remains....does the lack of serials mean anything? Can anyone confirm (not speculate) that these are very early production run units and that serials started later? I have no clue. I

I have a mirror image pair w/o serial numbers.Sent from my Verizon, Samsung Galaxy smartphone

I have 3 sets and one doesn’t have serial numbers.

Does anybody own a pair without serial numbers? I do and am curious t find out when they may have been produced (I'm assuming at the begninning of production which would suggest I have a *very* early

Most Welcome! Hope it helps with whatever you are working on. Ed Sent: Tuesday, September 22, 2020 9:34 AM To: [email protected] Subject: Re: [DahlquistSpeakers] DQ-10 Impedance Yes, many

Yes, many thanks. DD

Greeting w e, Yes I do understand the many years of exposure to the elements. I've got 3 pairs of which I've occasionally only had to replace a tweeter or upper mid on. Knock on wood.... I'd like to

Ed, Thanks for the test information.

Since I had three hair is a TQ 10 to do six crossovers I didn’t measure all the caps just too many plus you can only do them after they removed from the market the ones that I did test seem to be

All the old yellow ones (Mexico) and tan resistors, etc. Same as usual. No testing. Assuming since they are going on cose to 40-45 yrs old anything that has a chance of aging out and going bad has

Just curious so did the oem caps measure leaky or out of range? What color are oem's your replacing? DD wrote:

Robt, As you indicate below, eight ohms is a reasonable figure for the DQ10. Nominal values are only a broad characterization of the type of load an amp will see and therefore an indication of the

All speakers vary in impedance at various frequencies. ?Often the impedance drops to some lower value in the bass region. ?So the stated "nominal" impedance is somewhat of a myth. ?It's "nominal"

Samuel and Andy, Attached are the system impedance, measured this morning, on two charts, one is highlighted at 60Hz and the other at 120Hz. As expected there is one impedance rise at the woofer