I've read some reviews, which I tend to agree with, that the TSI500 midrange is slightly muddied and flat.
I bought my TSI500 pair for $1000 2yrs ago, and have never been completely satisfied with the sound.
As a test:
I introduced a 12" woofer and 3 way crossover from another system .
Removed the bi-amp jumper.
Temporarily wired the external 3-way crossover to:
12" Woofer hi-cross @ 800Hz
TSI tweeter lo-cross @ 5000Hz
4 - 6 1/2" TSI drivers crossed @ 800 & 5000Hz
If my thinking is correct, leaving the original TSI500 crossover in place at its 2500(?)Hz, this should give me:
2 - 6 1/2" drivers operating from 800 to 2500Hz
2 - 6 1/2" drivers operating from 2500 to 5000Hz
The experiment seemed successful:
tweeter more brilliant
6 1/2" speakers more distinct
base sharper
My question is where do I go from here:
If I cut a hole and mount a 12" woofer to the lower side of the TSI's will the existing porting support the
additional back pressure?
Any suggestion for choosing the woofers and passive 3-ways?
I bought my TSI500 pair for $1000 2yrs ago, and have never been completely satisfied with the sound.
As a test:
I introduced a 12" woofer and 3 way crossover from another system .
Removed the bi-amp jumper.
Temporarily wired the external 3-way crossover to:
12" Woofer hi-cross @ 800Hz
TSI tweeter lo-cross @ 5000Hz
4 - 6 1/2" TSI drivers crossed @ 800 & 5000Hz
If my thinking is correct, leaving the original TSI500 crossover in place at its 2500(?)Hz, this should give me:
2 - 6 1/2" drivers operating from 800 to 2500Hz
2 - 6 1/2" drivers operating from 2500 to 5000Hz
The experiment seemed successful:
tweeter more brilliant
6 1/2" speakers more distinct
base sharper
My question is where do I go from here:
If I cut a hole and mount a 12" woofer to the lower side of the TSI's will the existing porting support the
additional back pressure?
Any suggestion for choosing the woofers and passive 3-ways?
First, stop!
What you want to achieve is probably all doable in the crossover without mangling the cabinet or drivers. From looking around online others have created crossover modifications for this speaker already. Take a look at what they have done.
If you want to do it all yourself, you should learn to measure and analyze what you have before you start making random changes. Unless you've given up on the speakers except as a learning opportunity, in that case, hack on!
Best,
Erik
What you want to achieve is probably all doable in the crossover without mangling the cabinet or drivers. From looking around online others have created crossover modifications for this speaker already. Take a look at what they have done.
If you want to do it all yourself, you should learn to measure and analyze what you have before you start making random changes. Unless you've given up on the speakers except as a learning opportunity, in that case, hack on!
Best,
Erik
From looking around online others have created crossover modifications for this speak
Ericsquires has hit exactly what I'm looking for. I don't want to re-invent the wheel that others have already created. I don't find anything on the forum for modifying the TSI500, and I would really appreciate it if someone could direct me to where to find where others have created crossover modifications for this speaker already.
Ericsquires has hit exactly what I'm looking for. I don't want to re-invent the wheel that others have already created. I don't find anything on the forum for modifying the TSI500, and I would really appreciate it if someone could direct me to where to find where others have created crossover modifications for this speaker already.
Here, try this link:
Polk Audio TSi500 Crossover Modification Thread - Polk Audio
I found it by Googling the speaker + crossover and looking for pictures.
Polk Audio TSi500 Crossover Modification Thread - Polk Audio
I found it by Googling the speaker + crossover and looking for pictures.
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