balancing component speakers with different indepandance

[ngold]

Hi,
im looking to take a burned active speaker (damadged amp) and create a passive speaker out of it.
the speaker is JBL 315 and it has 2ohm 14inch sub and a 8ohm tweeter.

considering I can make the right crossover to count for the different indepandance - will the result be a balanced sound ? meaning will the sub and tweeter volume be balanced or will the sub be much lauder since its indepandance is lower??

 

[thirdicomplex]

The compression driver is more than likely higher sensitivity than woofer so it will need to be padded to match the woofer. I'd be more worried about the woofer impedance. Do you have an amp that can drive a 2 ohm load?

 

[Galu]

The different impedances can be compensated for in the crossover.

It is the sensitivity (in dB/W/m) of a driver that dictates how loud it will sound.

As stated above, the tweeter is usually more sensitive than the woofer.

 

[Galu]

Some specs may be of assistance:

Tweeter is JBL 2414H:

Size: 1", 25mm
Power Rating: 35W AES
Frequency Response: 1.9kHz-20kHz
Sensitivity: 98dB (unspecified)
Impedance: 8 ohms
Voice Coil: 1.0"
Recommended Crossover Frequency: 1.9kHz

https://www.loudspeakersplus.com/JBL-2414H-HF-Driver-p/jbl-2414h.htm

Woofer is JBL M115-2:

2 ohm, 220 watts continuous.

I can't find its sensitivity rating but its 8 ohm equivalent (JBL M115-8A) is rated at 99 dB/W/m.

 

[GM]

According to this [Malformed link removed], average is ~93 dB/W/m.

 

[Galu]

It may be a glitch, @GM, but I'm getting a "The requested page could not be found." message on your link.

 

[GM]

Oops! Wasn't paying attention, it DL'd to my computer.

 

[Madrok]

Unless you’re trying to come up with a crossover theoretically, your design process will be based on listening and measuring, with the impedances and other specs. of both drivers inherent in the trial-and-error process. In other words, you‘re safe ignoring all the specs., given these are the drivers you’re working with. It’s very unlikely you’ll need to pad the woofer down, but you might benefit from filtering it quite low.