I think I may have misread one of the resistors. I wrote down 7 Ohms for some reason but I rechecked today and they both come out at 5.4. The markings on one show 4R7 which I now understand means 4.7 Ohms.
So incorrectly ordered 6.8 Ohms from Falcon so I will have to pop to Maplin where they have 4.7 Ohm ceramic resistors , 5W , 5%, 350V made by Switch. Will they be ok as Falcon are Ā£15 min order?
Cheers
So incorrectly ordered 6.8 Ohms from Falcon so I will have to pop to Maplin where they have 4.7 Ohm ceramic resistors , 5W , 5%, 350V made by Switch. Will they be ok as Falcon are Ā£15 min order?
Cheers
Ok so ordered a couple of 4.7 ohm resistors from Wilmslow plus a couple ranging either side. I see the new tweeter starts at a lower frequency than the old H107 . If I need to change the crossover to allow more of the tweeter to work lower down do I reduce the resistor or increase it? Or would I need to change more on the board? Like the cap as well?
Iām itching to get soldering ā¦ā¦.
Cheers
Phil
Iām itching to get soldering ā¦ā¦.
Cheers
Phil
This is a rough approximation to your Xover, I think this is what you have.
Consequently to lower the Xover point for the tweeter go up in the capacitor value one E12 value step at a time.
I would suggest not doing this as its a fairly large value already and we do not know how you new tweeter is going to react. If you cannot get a reasonable sound then consider this as a final option. If you had some way of measuring these things its a lot easier.
To attenuate you can either increase the series resistor to the tweeter, or decrease the resistor in parallel with it. Only try one component change at a time and listen with differing music types so that you get a balanced sound.
Consequently to lower the Xover point for the tweeter go up in the capacitor value one E12 value step at a time.
I would suggest not doing this as its a fairly large value already and we do not know how you new tweeter is going to react. If you cannot get a reasonable sound then consider this as a final option. If you had some way of measuring these things its a lot easier.
To attenuate you can either increase the series resistor to the tweeter, or decrease the resistor in parallel with it. Only try one component change at a time and listen with differing music types so that you get a balanced sound.
