I was cleaning up the garage and came across these crossovers designed for a component tweeter made by Alpine - see photo. They have never been used. Inside the box is a "Bennic" MF capacitor 0.33uf 100V and a 0.30mH inductor and also a small ceramic capacitor.
There is an adjustment where you can set the level to 0dB, -2dB, -4dB and -6dB.
It is designed to go between the amp output and the tweeter.
I have little knowledge of crossovers. All that I know is that this is classified as a first order crossover.
My questions are:
1. How would the different settings be changing the circuit?
2. Is it basically achieving the same result as an L pad?
3. Would this be useful in any DIY speaker projects?
If it is only in line with the tweeter, then I'm guessing that it would not be suitable as the only crossover in a traditional 2 way. Would it be useful in a 2 way with a larger full range + tweeter for example? Would it matter if the speakers it was used on did not match the impedence of the speakers it was designed for?
There is an adjustment where you can set the level to 0dB, -2dB, -4dB and -6dB.
It is designed to go between the amp output and the tweeter.
I have little knowledge of crossovers. All that I know is that this is classified as a first order crossover.
My questions are:
1. How would the different settings be changing the circuit?
2. Is it basically achieving the same result as an L pad?
3. Would this be useful in any DIY speaker projects?
If it is only in line with the tweeter, then I'm guessing that it would not be suitable as the only crossover in a traditional 2 way. Would it be useful in a 2 way with a larger full range + tweeter for example? Would it matter if the speakers it was used on did not match the impedence of the speakers it was designed for?
Attachments
Some of these have a couple of resistors in series with the tweeter. They select between including 0, 1 or both of them.
Is it possible that this one has two jumper options, hard to be sure from the outside.
Is it possible that this one has two jumper options, hard to be sure from the outside.
You sure it´s .33uF?
Coupled to 8 ohm it means some 60kHz crossover frequency.
While 3.3uF would be way more sensible 6kHz or so.
Check again.
Coupled to 8 ohm it means some 60kHz crossover frequency.
While 3.3uF would be way more sensible 6kHz or so.
Check again.
Ha yes it is one of those. It has that funny symbol then 72 written next to it. Underneath it say XF090. I've never heard of a polyswitch - googling as we speak..