Tannoy 3134 DC ZM-induced purchase, service and repair

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Maybe I’ll use chromenutses AMEX and get them
Credit cards are a tool of Satan 👹

Sorry…I actually don’t have any.

If I want to buy something I have to have the money in the bank.

If it’s more expensive than I can afford then I cook my Sugar Moma a nice meal…😉

P.S. I’m an incredible cheap skate and obsessive stalker of US Audio Mart, Reverb etc. I scored my GRF cabinets for $250…but drove from Connecticut to Maryland to get them.
 
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Did you see the price on those GRF?

160.000-ish Euros… is that a joke?

I allready have drivers and am happy with them.

these are rarity, collector item; you're not looking at those as regular speakers

say shitty bass guitar, but played by McCartney?

or scorched Strat body, but fired up by Hendrix

or Ford T, 10th from production line

from short looking at, it even seems Blacks are inside


recone with low Fs

10 inchers are for sissies.

cheap; good for Henhouse or Kitchen

ZM did learn how it's to be a Beggar; and Beggars don't choose



 
even 0.25mmsq enough for tweet

woof say 1.5 to 2.5

think of copper foils, 0.1mm thick

easy to find, then cut in desired width and surprisingly sturdy starting from said 0.25mmsq

do not forget - always (plastic) tie cables to basket, don't let them dangling from speaker posts

especially important trick with Pepperwort tweets; soldering posts are sturdy as Granma's teeth

but applicable to all others, just good practice
 
So if I choose to use foils instead of wires between the xo and the drivers would it worth replacing the inductor in the crossover for the woofer(I put in the basket a round wire air core that has 0.21r/12awg) with a foil one(0.24r/12awg)?
What about the inductor in the xo for the tweeter? I have a 0.6r/18awg in the basket same round wire air core. You said this is less critical but better to ask.
 
I'm frankly not hearing any specific difference between proper regular air choke and proper foil type air choke

that's my reply regarding both positions

tweet choke is especially not critical, having series resistor; you can even use one with tiny wire, increase in Rdc compensating with lower value series resistor
 
that's my reply regarding both positions

Then I will save some funds for some other stuff, thanks.


What about the wires/foils? should I place these under or over the polyester ? In both cases these will be fixed to the enclosure. In this case when they come from above on the back of the driver should I fix them to the basket?
Is it possible to fix them to the basket and then leave them hanging free over the TL? which my drawing doesn`t show. This way I will have shorter lengths of wire.

Is it ok to arrange the polyester like this? without having the back of the woofer covered?

wire arrangement.jpg
 
Is it possible to fix them to the basket and then leave them hanging free over the TL?

yes

Is it ok to arrange the polyester like this? without having the back of the woofer covered?

I had an impression that you understood what I was writing about big polyester sausage, arranged to take as much internal volume is possible, and (if needed) stapled just to top plate

what you're showing now i practically just lining of the walls

remember - I've sent you a sketch how to fill the volume of TL line
 
polyester sausage, arranged to take as much internal volume is possible, and (if needed) stapled just to top plate
The arrangement part was not clear.

Let’s say I will take a low density piece of 1.6x1.2m and 2cm thick polyester sheet like this one
IMG_8159.jpeg

that will have the required weight and then roll it on the width.
If my enclosure internally is 30cm wide I will roll up a sauge that is 1.6x0.3m and 8cm thick.
On the top side I will staple it in 4 places, 2 on the front and 2 on the back, let say at 10cm from the middle in each direction having a square of 20cm.

If the sausage touches the inner diving plate is it ok?
With arranged to take as much volume as possible you mean to pull a bit apart the sheet of polyester first of rolling it this way I increase the occupied space, right?
 
improvise, goal is to fill entire volume in equal density

remember - calculated polyester amount [gr] is starting point

you can tune it by ear or measurement (if you know what graph shape you like), usually there is no need to add more than 25% even in most boomy rooms

and - it's completely normal that polyester is touching everything and anything inside ........
 

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