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I have been listening to my 4315 for more than 2 years, they have been driven by Luxman SQ38U, MQ88U, Macintosh MC275, 300B unknown brand amp, Audio Note EL84 etc ... and turn out the best is Jadis...

Thank you everyone, I have tried both, and turn on that I prefer the ultra tweeters on the inner edges due to my listen room envoirment

Thank you, I am very green about the crossover, what is C-C crossover network ? any post you i can refer to ? Sorry about that

Also ... do you mean I have to get a 290 Hz corssover point one or...

I see, thank you I will have a try then .. thank you so much

Thank you so much. It is clear to me now

I have judt bought a pair of 4344, and i got confused which is left speaker / right speaker, I have seen the photos from few users, they are all different !!

By the way, I understand that 4344 the...

Thank you for the heads-up, I think I pass this time ... may be few years later, I may upgrade my 4315 with a bigger model ...

Updated

This morning received a pair of refurnished NOS 2405 tweeters (the serial nos. are very very closed) , then replaced the old pair (the serial nos. different is around 1xxx).

Have a...

Thank you for the explanation.

I did swap over two 2405s, and seems both tweeters are fine (even the one with lower OHM reading), therefore, I believe one of the crossover is causing the issue....

I am thinking to buy an extra pair of 2405 tweeter, do you think i can pair this extra pair to "JBL N1200 16-ohm Crossover Network" ?

If yes, then the connection will be

cable from amp to 4315...

Thank you so much

well said .. thank you

let see ...

76324

Thank you,

To be honest, I feel a bit tired to deal with this pair of 4315, as it caused few issues, from delayed shipment, 2203A / 2405 issues, also just received a new order of a pair of JBL...

Thank you, You are right, I swapped the tweeters with each other, and turn out a issue caused by the crossover

L Channel R Channel ...

oh I see. Thank you so much

really appreciated for your information

ok I have rechecked all the connections, seems they are ok

Thank you for your response, what do you mean of "Foilcal" ?

An update

Just managed to take off both tweeter 2405 and have an Ohm test, the readings are 6.5 vs 6.1, and the 6.1 is the one with less brighter.

What shall I do now ? Does it mean I need to...

Thank you all for the inputs, I will check the midranges as suggested.

"Do you know if the previous owner had done any work (changing diaphragms or replacing/reconing midrange) or mid bass" - I...

You are right , the mid mass and mid high are sealed.

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Hello again,

I am thinking to have a measure about the OHM reading of the tweeter 2405 of my 4315 speakers, shall i unscrew the back board to take out the tweeter, or unscrew the mid bass them the...

Yes, they are from Irvine, and the excess glue one was the one had a problem.

Due to the age of the speakers, I also spotted out that one of the tweeters is slightly quieter than the other

they shipped from California and the seller told me he bought ftom
Japan long time ago

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