Monitor 7c crossover upgraded, uncertainty ensues
Mhledm
Posts: 9
This morning with great anticipation I popped the crossovers which I upgraded yesterday back into my monitor 7c’s. I did Sonicaps and Mills resistors, and replaced the polyswitches with jumpers. Felt good about all my solders, securing, etc.
First off, the speakers work, which is great! But they also sound much better. Immediately I can hear new detail, and it’s richer, and livelier, the vocals and midrange much more present, and shrillness in the highs are gone - I’m stoked!
But I’m also doubtful that everything is copacetic. Something is...off with the left speaker. It’s weaker than the right. Making the soundstage shifted to the right. The tweeter is somewhat dull. Seems like overall it’s not getting enough power or something?
Could this be related to an issue with a component in the crossover? If there is an issue with a capacitor or resistor, would I know immediately and for sure that something is terribly wrong? Like, would it sound atrociously off?
I’m not sure how to know or find out for sure that I did the crossover right and that everything’s okay with it.
Maybe there’s another issue going on. I dunno. It used to kind of cut out or struggle from time to time, but it’s always been an intermittent thing that I thought the crossover upgrade would address.
Please help, polkertons
First off, the speakers work, which is great! But they also sound much better. Immediately I can hear new detail, and it’s richer, and livelier, the vocals and midrange much more present, and shrillness in the highs are gone - I’m stoked!
But I’m also doubtful that everything is copacetic. Something is...off with the left speaker. It’s weaker than the right. Making the soundstage shifted to the right. The tweeter is somewhat dull. Seems like overall it’s not getting enough power or something?
Could this be related to an issue with a component in the crossover? If there is an issue with a capacitor or resistor, would I know immediately and for sure that something is terribly wrong? Like, would it sound atrociously off?
I’m not sure how to know or find out for sure that I did the crossover right and that everything’s okay with it.
Maybe there’s another issue going on. I dunno. It used to kind of cut out or struggle from time to time, but it’s always been an intermittent thing that I thought the crossover upgrade would address.
Please help, polkertons
Comments
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Swap tweeters to see if the issue follows.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Also you should let them burn in for about a week before doing any critical listening.All tube designed Hello Kitty boom box
Invisible aluminum wireless Phazer speaker wire
Free Spirit Teleport Preamp (Literally brings the artists into your living room)
1.44 JW Flux Capacitor Mono Amps -
Post some photosHome Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
Okay about the burn lostsoul.
F1, the problem doesn’t follow when swapping tweeters. So, I think the tweeters and the crossovers are actually okay.
I noticed this afternoon that at moderate to low volumes, the entire left speaker is cutting in and out. This is that same issue I mentioned the speaker has had intermittently since I’ve had the monitors. So, I’d like to focus on finding out what is causing this. Binding posts? Receiver? Any hunches? I’ll try ruling out the receiver tonight after work -
Corroded wire somewhere before the XO. I agree with Dave we need some pictures of parts and such.
Get a different receiver or something else than what you're using now. That will rule out that. -
If it happened before you did the crossovers then I'd would agree with the above, check the binding posts/wires. Also, did you re-solder the inductor wires to the board? If you didn't check to make sure the solder isn't cracked...Remember, when you're running from something, you're running to something...-me
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Oh my god guys. Thank you all for your help. The problem was absolutely the receiver. I swapped that early 2000’s JVC out for a beefy but older JVC (from ‘87, same year as the 7c’s). My speakers are now kicking major ****! All my doubts are allayed. The crossovers are perfect. Thanks again
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Excellent news!!
