Re: Speaker for DRRI

Mike Schway wrote:

In article <KyOjf.2998$nA2.386@xxxxxxxxxxxxxxxxxxxxxxxxxx>,
 "danny" <martifamily@xxxxxxxxxxxxx> wrote:


At Ted's Reccomendation, I put that same speaker in the DRRI, and while at
low volumes is fine, it craps the bed when pushed!

I put the stock speaker back and it has much better over head and response.
I did a retube based on suggestion from LV and that worked out fine.

If you go for that 12 F, try the 50 watt version and don't be "lightly
doped".   The amp at about 22 watts doesn't offer tons of head room. However
it's take more than a 25 watt 12 F to take advantage of whatever the amp
offers.  The 100 watt speaker has a lager magnet, and better respons all
along the spectrum.

peace out


Talk to Ted about that. Yours may be the one-in-50 which doesn't make it through the break-in period. Slight voice coil rub is the primary disadvantage to a VC gap as narrow as Ted uses.

You can also try retensioning the speaker attachment nuts. It's ABSOLUTELY IMPERITIVE that the nuts are tightened evenly, and the baffle is dead flat. Much more so with Ted's speakers than others'. A narrower than usual gap gives higher local flux density, and higher efficiency, but this comes with the risk of hypersensitivity to physical allignment....especially with a flexible stamped basket.


So is the nature of "speaker break-in" primarily a function
of the voice coil "self machining" (for lack of a better term),
and eventually wearing the moving parts "smooth"?

Makes sense...I never really thought too much *why* speakers might
need to break in, in fact our Weber / Pro Reverb situation was the
first I had experienced this first hand.







.

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