Monitor 10A tweeters.{"dim" sounding}

HzTweaker

I recently purchased a pair of PA M10As. They're currently hooked up to a Kenwood KR-3600 receiver, and they sound great! Apart from one of the tweeters. I know the fuses are incorrect (a 3amp is currently in each unit), but one of the drivers isn't producing high fqz like the other. Its sort of "dim" sounding, not as clear or pronounced. Any particular reason for this lack in performance?

boston1450

1a fast blow. Make sure its clean contact. Try changing tweeters around from one cabinet to the other-to see if it follows. If it follows its a bad tweet.

boston1450

Make sure all speaker wires are on correct. As you know those xrossovers are old. Put glue around the woofer magnets to prevent Shifting Magnet from happening-is a cheap tip also. Report back

Nightfall

There should be quick connects, somebody has had those open before.

F1nut

http://forum.polkaudio.com/discussion/38755/polk-audio-speaker-wiring-schematics-more-all-models-except-sda#latest

westmassguy

The 10As have Peerless Tweeters, which were soldered from the factory, as were many of the SL1000s after Peerless ceased production.

boston1450

Not to often you will get the #'s consecutively even when they were bought new

westmassguy

Don't obsess on serial numbers. They really don't mean anything anymore, with the exception of certain SDA models. As long as the driver compliment and crossovers are the same, you're good.

boston1450

I have no idea. I only know what i have seen on mine & other Monitor or SDA speakers. ...... (This has nothing to do with OP) This Vannila c r a p has got to go. You post stuff & it gets moved around & put where IT wants to put it. W T F

Cfidave

I just went through a crossover rebuild on my Polk 7A's, peerless. The tweeters are soldered on mine. I de-soldered and installed quick connects. I noticed the same dull sounding tweeter on one speaker. I swapped tweeters to rule out the crossovers, no change. Re-checked all the wiring, looked good. Replaced the tweeter with a used Peerless from a 7B, which fixed the problem. Most likely you have a bad tweeter. BTW both my tweeters ( including the bad one ) ohmed out at 7.6 & 7.8.

boston1450

Larry's rings or Hurricane nuts from PE. Larry ring are made very good & when you tighten them up you "know" their in there good. Do the tweeter brackets & binding plate while your at it...... If your stock seal is not ripped - keep the gasket you have. They should be still good VS replacement. Thats how i did/do all mine & the ones im having WMG do now

HzTweaker

I took both Tweeters out of the cabinets (one at a time) and found that both were soldered to their wires (to try your suggestion). Is this correct?

HzTweaker

Maybe they're wired out of phase.. I figured I had a potential project on my hands. I didn't know that it meant cleaning up somebodies mess..

HzTweaker

Anyone have to share or know how I can obtain the drawings for the crossover/speaker wiring for the PA Monitor 10As?

HzTweaker

Thanks guys, I'm going to start with putting correct fuses in each unit and check the wiring to make sure they're in phase with one another later today.

Nightfall

westmassguy wrote: »

The 10As have Peerless Tweeters, which were soldered from the factory, as were many of the SL1000s after Peerless ceased production.

Was it just the 10's that were soldered? Neither my 5's or RTA-12's are soldered. Haven't opened up my 4's yet.

Braddles63

My 7A's are soldered.

michaeljhsda2

As someone else mentioned, be sure to clean the fuse holder with contact cleaner, more than likely that will fix the problem (could be a blown fuse too). I strongly advise against desoldering the wire from the tweeter post. I did that to mine and the post fell off with no way to reattach it. Result: had to buy another Peerless tweeter.

westmassguy

Nightfall wrote: »

westmassguy wrote: »

The 10As have Peerless Tweeters, which were soldered from the factory, as were many of the SL1000s after Peerless ceased production.

Was it just the 10's that were soldered? Neither my 5's or RTA-12's are soldered. Haven't opened up my 4's yet.

A lot of the Peerless were soldered, I haven't seen one that wasn't. Some SL1000s were soldered, some not.
As mentioned, use extreme caution when de-soldering and re-soldering.

michaeljhsda2

After the debacle of the post falling off, I installed female spade connectors to the wires.

motorhead43026

Be sure to heat sink when de-soldering and soldering.

Nightfall

westmassguy wrote: »

Nightfall wrote: »

westmassguy wrote: »

The 10As have Peerless Tweeters, which were soldered from the factory, as were many of the SL1000s after Peerless ceased production.

Was it just the 10's that were soldered? Neither my 5's or RTA-12's are soldered. Haven't opened up my 4's yet.

A lot of the Peerless were soldered, I haven't seen one that wasn't. Some SL1000s were soldered, some not.
As mentioned, use extreme caution when de-soldering and re-soldering.

Perhaps my speakers are the ones that have been changed then, that or Polk just did whatever they felt like doing on a particular day. Mine landed on a quick connect day. Sorry for the confusion OP.

HzTweaker

westmassguy wrote: »

The 10As have Peerless Tweeters, which were soldered from the factory, as were many of the SL1000s after Peerless ceased production.

So is there a way to test the crossover to find out if its the issue and not the tweeter itself?

HzTweaker

Also I have a new Question Team (not sure if I should start a new post for this one. Pleas advise). So it mite be a silly question but should the serial numbers for a pair of speakers (M10As in question) match?

F1nut

No.

gdb

Why risk de-soldering at the terminals ? I'd sever the wire a few inches downstream, and then, strip/re-solder there.

michaeljhsda2

gdb wrote: »

Why risk de-soldering at the terminals ? I'd sever the wire a few inches downstream, and then, strip/re-solder there.

Bingo

HzTweaker

boston1450 wrote: »

Not to often you will get the #'s consecutively even when they were bought new

So whats common: L1234 L1235 or L3001 L4201(examples)?

HzTweaker

boston1450 wrote: »

I have no idea. I only know what i have seen on mine & other Monitor or SDA speakers. ...... (This has nothing to do with OP) This Vannila c r a p has got to go. You post stuff & it gets moved around & put where IT wants to put it. W T F

Yeah Its wearied. I'm not exactly sure whats going on with my post and why they move around like they do.

boston1450

Yeah. I just got a REPORT you accepted some answer. Lol. The new system here is screwy

HzTweaker

boston1450 wrote: »

Yeah. I just got a REPORT you accepted some answer. Lol. The new system here is screwy

Right on. Well due to my availability this project is going on the back burner for a bit (I'm just glad I finally have a pair of these). But I'll still check in on the forum periodically. As soon as I start working on my pair of 10As I'll start a new post. Hopefully That one will be a little more organized lol.

F1nut

boston1450 wrote: »

This Vannila c r a p has got to go. You post stuff & it gets moved around & put where IT wants to put it. W T F

It's suppose to make you feel good when your post gets the special answer and check mark next to it. Since I'm not a millennial I find it annoying as hell.

westmassguy

F1nut wrote: »

boston1450 wrote: »

This Vannila c r a p has got to go. You post stuff & it gets moved around & put where IT wants to put it. W T F

It's suppose to make you feel good when your post gets the special answer and check mark next to it. Since I'm not a millennial I find it annoying as hell.

I used to get a gold star on my forehead in Kindergarten for having the right answer.
Check marks make me all warm and fuzzy inside.