autotransformer

[Earl K]

Fantastic Info !

- I thought I would pop this up to the surface for some air , given Teds inquiry.

( - Tapped inductors vs Lpads ought to be a fascinating debate . )

[4313B]

Tapped inductors vs Lpads ought to be a fascinating debate

Ok, let's debate. I'll start:

The tapped inductor is a PITA.

You have the reactive inductance to deal with so a parallel resistor is necessary anyway. Just use a series resistor with that parallel resistor and call it a day. A tapped inductor for a passive loudspeaker filter is an expensive solution to a simple problem. There are plenty of very nice non-inductive resistors available today.

The issue of heat is also faulty because the resistor required in front of the tapped autotransformer can generate a tremendous amount of heat so the lack of heat from the tapped autotransformer is negated. Some of the closed cans like the LX5 were "ok" but remember the mesh grilles on the 4331/4333 networks so those 40 ohm 40 watt monsters could keep cool? How many of you have seen those resistors after continuous high power use?

Just use gangs of non-inductive resistors like Mills manufactures.

Counterpoint?

[Earl K]

Ok, let's debate. I'll start:

Hell, I can't debate you on this,,,, I've paid zero attention to the "sound of resistors"... I'm still over in capacitor land somewhere ,,,,,

( Plus, I happen to agree with all your points,,,especially; PITA )

Counterpoint?

Anyone else on a flyby from AA / HE ?

[Ian Mackenzie]

Any easier way is to piss off these crappy hi sensitivity drivers and use a selection of components that a well matched in terms of sensitivity like everyone else.

Isn't that a bit more sensible?:dont-know

[4313B]

Yep, could be...

High efficiency system down to ~ 80 Hz and then 2242H subs with boat loads of power to fill in the bottom...

[Ian Mackenzie]

Hey,

Now that's a big set of headphones!

Ian