Need some help... Recently repaired speakers

[Pokes1702]

I am a first time poster but I have lurked around for quite some time and have learned alot while on this site. I have a question re: recently repaired speakers.

I currently own a pair or Wharfedale Diamond's that recently went "under the knife". I had a blown tweeter and distorted midrange. I called Wharfedale and they promptly sent me a new tweeter and mid at no charge. After replacing them both I was excited to hear what they would sound like only to be dissapointed. The original speaker sounds clear and vibrant, while the new one sounds flat and muddy. I recently read the article re: speaker breakin and was not sure if this had anything to do with the poor quality? Could the crossover have anything to do with this?

Needless to say I am stumped and am looking for any insight.

 

[tbewick]

I don't think speaker break-in would have such an obvious effect. Doubtless there will be some physical changes in speaker performance over time, but a such changes will probably be subtle. I have heard that speaker break-in is thought to be more a case of you getting used to the sound of the loudspeaker, more than the loudspeaker itself actually sounding different.

I don't know much about loudspeakers/electronics, but maybe the electronics in the crossover (resistors, capacitors, or inductors?) have been damaged. You could inspect the crossover for any signs of damage. Be careful with the capacitors.

Other than that, the only thing I can think of would be to send the speakers back to Wharfdale for inspection and repair.

 

[highfihoney]

are you sure that the problem isnt comming from your reciever or another component? try switching the left speaker with the right & if the same dull sound stays on one side then you know its not the speaker .

 

[tbewick]

I also thought that making some other checks would be worthwhile, that is if you haven't already done so. You could check all the system connections for any corrosion.

 

[Sarius]

Any chance when you were connecting up the wires you accidently put them out of phase, that is plus to minus? That might cause the symptom you're hearing. Might be worth a quick check.

 

[Lee Batchelor]

Hey Pokes, I'm also new here.

How old are the original speakers? Do you have their T/S parameters to compare with the new drivers? Why I mention this is because I recently replaced my Altec 15" drivers with a pair of Eminance Kappa Pro LF drivers. The advertised T/S paramters from the Eminence website were completely different from the shipped models. I later learned that Eminiece had put a much larger magnet in the same model numbers. It worked to my benefit but I had to change the T/S paramters in my computer simulation program because I had designed the boxes based on the old T/S specs.

Hope this helps.........Lee