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Sorry i have to ask ... drivers replacement in a monitor
Old 15th October 2013
  #1
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Sorry i have to ask ... drivers replacement in a monitor

Hi to Everyone !
I have the intention to buy cheap active monitors and replace the drivers with a better part.
Is this a sane idea ? i think so because a quality driver can give a remarkable boost to performance i guess.
Anyone who has did this ?
Thank you very much indeed in advance for any advice and suggestion.
My kindest regards,
gino
Old 15th October 2013
  #2
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kosty's Avatar
Loose the idea.
The only thing that might be similar to an expensive monitor is the outside appearance.
You would have to change the amps, the crossovers and the volume and structure of the cabinet espacially if it's a ported design.

Actually you won't be using any part of your old monitors.
Old 16th October 2013
  #3
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Quote:
Originally Posted by kosty View Post
Loose the idea.
The only thing that might be similar to an expensive monitor is the outside appearance.
You would have to change the amps, the crossovers and the volume and structure of the cabinet espacially if it's a ported design.
Actually you won't be using any part of your old monitors.
Thank you for your valuable advice
So not only the drivers are the cheap parts. I see.
Still i think that when someone talks for instance of muddy sound, distortion and so on this could be related more to the drivers than to the electronics.
I mean, drivers are the element most impacting on the overall sound.
IMHO of course.
And actually i read of a famous brand that has changed drivers suppliers.
The famous sound is not still there.
And the aficionados have reacted ... looking for 2nd hand speakers of the same brand
Thanks again and kind regards,
gino
Old 16th October 2013
  #4
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kosty's Avatar
Quote:
Originally Posted by ginetto61 View Post
Still i think that when someone talks for instance of muddy sound, distortion and so on this could be related more to the drivers than to the electronics.
I mean, drivers are the element most impacting on the overall sound.
IMHO of course.
Drivers and the room have the most influence for the overall sound. Still crossovers and cabinet volume have to be matched to the drivers.
It's like putting a Ferrari engine into a truck and expecting it to drive as fast on a off-road terrain as the Ferrari would on a highway.
Old 16th October 2013
  #5
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Before replacing drivers, you may want to understand theil-small parameters so that the new drivers have a reasonable chance of delivering good results.

Thiele/Small - Wikipedia, the free encyclopedia

These parms determine whether a specific driver should be used in a closed or ported cabinet, minimal internal cabinet size, and so on.

When replacing drivers, make sure they have the same frequency response at the crossover points determined by the the crossover circuit, and that they have the same impedance. Also make sure the new drivers match the old drivers in SPL sensitivity or else you will change the balance between the woofer, midrange, and tweeter, perhaps to something less desirable.
Old 16th October 2013
  #6
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JBL Control 1's?
Old 17th October 2013
  #7
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Quote:
Originally Posted by Frank_Case View Post
Before replacing drivers, you might want to understand theil-small driver parameters so that the drivers you choose have a reasonable chance of delivering better results then what you already have.
Thiele/Small - Wikipedia, the free encyclopedia
Thank you very much for the link
The woofer i understand ,,, is not that straightforward
But the tweeter ... from people i trust i got the info that the original one is very low quality and i have already a pair of very good quality (Dynaudio d28) laying unused.
This at least i can do no ? maybe with some resistor if the level is to high ...
The woofer i agree. But i like very much aluminium cone.
I heard speakers with aluminium cones ... they were fantastic.
I could not hear any kind of distortion.
The speakers have sharp cut so also the break up phenomena shoud be under control.
While i was writing this reply i saw here the advert of an "ultimate" monitor speaker with metal cones ... i like it extremely.
I like the Revel like drivers, just to name a brand.
Thank you very much again. I will study for the woofer better.
Kind regards,
gino
Old 17th October 2013
  #8
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Quote:
Originally Posted by kosty View Post
Drivers and the room have the most influence for the overall sound.
Still crossovers and cabinet volume have to be matched to the drivers.
It's like putting a Ferrari engine into a truck and expecting it to drive as fast on a off-road terrain as the Ferrari would on a highway
Thanks and yes you are right even if the comparison is not correct,
A car is a car and a speaker a speaker.
Let's say that i have a 2 way speaker with cut at 2kHz-24dB/octave
The original woofer is a 6"
If i replace the original woofer with a 6" from Scanspeak that is flat up to 2kHz
what negative effect i could get ?
I can see only positive things.
I said Scanspeak to say a undebatable high quality driver.
I could have said Seas or similar.
Really what could be the problems ?
Maybe it could not go low as the original ?
But every other performance would be greatly improve.
The original are nomane chinese PP cone woofers ... and it is just normal at that price.
For the tweeter of course will be even more straightforward.
The best monitors have the best drivers.
There is no way that a bad driver can give a nice sound.
For me the driver fix the maximun performance that can be reached.
Regards,
gino
Old 17th October 2013
  #9
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Quote:
Originally Posted by Vitalis View Post
JBL Control 1's?
Hi ! i have set for a 6" woofer in a two way speaker.
I think that it could be a good compromise.
I could add a woofer in the future if the room will be bigger.
Thanks and regards,
gino

P.S. i have already ordered the speakers but i prefer not to name them on the basis of what i am going to do.
Old 18th October 2013
  #10
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S2udio's Avatar
 

Quote:
Originally Posted by ginetto61 View Post
A car is a car and a speaker a speaker.


Not so grasshopper
Old 5th February 2014
  #11
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adam_w's Avatar
How did this work out for you?

It's not that hard to do the required calculations and find better components that work VERY well in the same box, despite what some people might say. It might not be a particularly cheap thing, and you may end up using...just the box, but it's a good experiment.

I killed some tweeters in a small, older passive set I had which I couldn't get replacements for and ended up doing just this, and learning a lot.
Old 11th February 2014
  #12
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Quote:
Originally Posted by adam_w View Post
How did this work out for you?
It's not that hard to do the required calculations and find better components that work VERY well in the same box, despite what some people might say.
It might not be a particularly cheap thing, and you may end up using...
just the box, but it's a good experiment.
I killed some tweeters in a small, older passive set I had which I couldn't get replacements for and ended up doing just this, and learning a lot
Hello
I ended buying a pair of these some weeks ago.
Behringer TRUTH B2030A Active 2-Way Reference Studio B2030A B&H
The sound is not bad as stock.
I still think that the woofer is a weak part. Very weak.
I do not like the plastic cone at all.
A better cone would give a better mid range for sure (less distortion).
I am looking for something usable around but have not find anything.
I am looking for the poor man Scanspeak
Even 2nd hand ....
and i am open to suggestion of course
Kind regards,
gino
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