Impedence ?????

[fuseable]

If I have a:
416A 16 ohm low frequency
806A 16 ohm driver high frequency
N-800-G crossover
What is the impedence of the speaker????

[Panomaniac]

16 ohms, more or less. Tho the L-Pad in the crossover is likely to make the top end closer to 8 than 16.

Are you asking this for use with a tube amp?

[aditya]

16 ohms, more or less. Tho the L-Pad in the crossover is likely to make the top end closer to 8 than 16.

Are you asking this for use with a tube amp?

The L pads used here will see that the amp will see 16 ohms as the load. The actual load, that is, the HF driver, may not see the source as 16 ohms, which is slightly less significant, tho significant. This is b'coz it is not a T pad.

L pads take care of only one side, depending on the orientation, whereas T pads do it both the ways.....

Am I right ?

[Panomaniac]

Yeah, pretty much. I used L-Pad as a generic term for the volume control. I suppose that it may be a T-Pad.

They don't stay as constant as one might hope, they vary over the range. If it's important I can run an impedance sweep of 16 ohm 806 driver with the N-500 crossover.
The low pass section will still be whatever the woofer impedance is, at least below the crossover point. The crossover point will shift, however, if a different impedance is used.

EDIT: Come to think of it, more than shifting, the crossover will peak a lot at the crossover point if the wrong impedance drivers are used. I doubt this will sound very good. :-/

[aditya]

Yeah, pretty much. I used L-Pad as a generic term for the volume control. I suppose that it may be a T-Pad.

They don't stay as constant as one might hope, they vary over the range. If it's important I can run an impedance sweep of 16 ohm 806 driver with the N-500 crossover.
The low pass section will still be whatever the woofer impedance is, at least below the crossover point. The crossover point will shift, however, if a different impedance is used.

The L pad is not comparable to a standard volume control, though it does control it.

The volume control depends on non-interfering source and loading impedances. It never takes care of the resultant figures.

In the case of a volume control, a slider is moving between a constant value of a resistance.

In the case of L pads, there are two things changing in value at the same time in order to make one thing constant.

In the case of the T pads, three things change in value at the same time in order to keep two things constant.....!

[Old Guy]

In the case of L pads, there are two things changing in value at the same time in order to make one thing constant.

Well, you can read the advertising copy but have you ever tested?

They are not as good as claimed. BTW most here don't need oversimplified explanations we are fully are of the difference.

But in real life things are not as accurate or simple as you say.