Crossover problems on Boston Z6

[AllStar1500bd 5,000+ posts]

At first, I thought it may have been my wiring, but its not. I troubleshooted everything I could think of. I switched channels on my amp, changed speakers, changed and shortenend wiring significantly, fooled with the gains and EQ. I changed speakers on the crossover, and both speakers sound perfect on one of the crossovers, so the other one is to blame. I narrowed my problem down to one of the crossovers. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

The problem is that one of my speakers has significantly more output than the other when they are both on identical settings (gains, crossover pt, and EQ settings). I placed them side by side next to my ears, and it was obvious that one was a lot louder than the other. I was thinking possibly a rain drop got into the crossover. I'm thinking, if anything, this is what happened.

Does anybody have any opinion on what I should do? I purchased them on eBay so I am not sure about a warranty. Has anybody ever dealt with Boston Acoustics customer service before? Any advice on other problems it could be?

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[squeak9798 5,000+ posts]

Have you had these installed for a while, and this is a new occurance? Or have they done this since straight out of the box?

 

[AllStar1500bd 5,000+ posts]

Have you had these installed for a while, and this is a new occurance? Or have they done this since straight out of the box?

I was thinking they just recently started doing this when I gave them more power (275 watts vs 100 watts previous to this). However, I didn't notice the difference before because they were only getting 100 watts to each speaker, and I am 75% deaf in my left ear //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif But the problem is the same whether the amp is bridged (275 watts per speaker) or I am running one speaker per channel (100 watts per speaker). The problem is just more obvious now that they are getting sufficient power.

 

[squeak9798 5,000+ posts]

Grab a DMM, play a 60hz sine wave and then measure the voltage output at the amplifier's output terminals (both channels), and then measure the voltage on the output terminals of the crossover (for the mid, not the tweeter).

If there is significant difference in voltage between L & R at either the amp or the crossover, then you know where the problem is located.

 

[FoxPro5 5,000+ posts]

Read this and then check those speakers

 

[AllStar1500bd 5,000+ posts]

Grab a DMM, play a 60hz sine wave and then measure the voltage output at the amplifier's output terminals (both channels), and then measure the voltage on the output terminals of the crossover (for the mid, not the tweeter).
If there is significant difference in voltage between L & R at either the amp or the crossover, then you know where the problem is located.

I was going to do this, but don't currently own a DMM //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif I'm going to go pick one up in the next day or so and check this out.

Read this and then check those speakers

Well, there is a serial number on one of the speakers that matches the box, but no serial number on either of the crossovers or the other speaker. I don't belive that was the seller that I bought the speakers from either.

 

[AllStar1500bd 5,000+ posts]

Problem temporarily solved. I used the Z6's bi-amp feature to do so with my 4 channel amp, and it fixed the uneven sound. Maybe something was wrong with the internals of the crossover.