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Multi-Way Conventional loudspeakers with crossovers

yamaha ns10
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Old 10th May 2016, 11:28 AM   #11
2stuffed is offline 2stuffed  Australia
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Thanks for your replies.I'll think of another project, maybe a sub.
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Old 10th May 2016, 02:16 PM   #12
waxx is offline waxx  Belgium
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They are rated by music studio's for their clear and defined midrange, but are mostly used with a sub for mixing in studio's. They are in no way hifi speakers, they are popular because if it sounds good on those, it sounds good on every speaker. Mostly they are used in combo with other more precise studio monitors, who have a broader and more neutral frequency response.

I don't know about modifing them. The others on this tread know more, but it seems useless to try. If you change te crossover, the advantage of those dissappears and they are just average 2 way speakers.

Just my thought off course. If you insist to modify them, listen to the others in this tread, not me...
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Old 10th May 2016, 02:22 PM   #13
Salas is offline Salas  Greece
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Their shallow mid bass alignment allows for boundary reinforcement too because they were usually located on the meter bridge of a huge analog mixer back in the day.
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Old 10th May 2016, 08:27 PM   #14
Lojzek is offline Lojzek  Croatia
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Quote:
Originally Posted by Mr Terrorist View Post
Hi Lojzek

Are you saying you can improve a speakers sound by modifying the crossover?
How easy is it to work out the crossover points from the components already
used? Regards
Hi Mr T,

although you have decided not to work on this project, questions asked deserve
to be answered. One can modify the way a speaker sounds by modifying XO
filter. Manufacturers do that all the time when they engineer loudspeaker series.

Yamaha states 2 kHz XO frequency for NS10-M and the impedance plot seems
to confirm that.
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Old 10th May 2016, 08:46 PM   #15
sreten is offline sreten  United Kingdom
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Hi,

I'll reiterate there is absolutely no point in messing with NS10's.
Original examples go for far more than they are worth IMHO.
Sell them and buy some better used hifi loudspeakers.

rgds, sreten.
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Old 10th May 2016, 09:01 PM   #16
Lojzek is offline Lojzek  Croatia
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I agree there is no point in butchering the original Yamaha
cabinet just to try out stuff, but there is a point for a DIYer
to build another cabinet and reuse the drivers to try another
Xo filter and learn a few things doing so. That may only work
for an individual ready to sacrifice time to learn how to do it
properly which may end up being too long.
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Old 10th May 2016, 09:32 PM   #17
xrk971 is online now xrk971  United States
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Along the lines of what one can do to learn more about making and modifying crossovers - you can take the existing xo and draw a schematic of it with part component values. Run the drivers without a crossover and use a calibrated mic to measure the minimum phase FRD files for each and both in parallel (sans XO) and the import those FRD files into a simulator like PCD or Xsim. Enter the as drawn XO schematic into the simulation program. Then purely on a computer, you can play around with changing component values or even making a new XO altogether without messing up the actual speaker parts. It will be a very accurate way of predicting the final Xo performance. If you end up with a response you like in the sim, maybe try making the xo and listening to it. It's a great learning process. It probably won't yield a better sounding speaker - although flattening the response may help reduce harshness which was sometime accomplished by hanging 2 sheets of Kleenex tissue in front of the tweeter to take the bite off the sound.

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Last edited by xrk971; 10th May 2016 at 09:37 PM.
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Old 10th May 2016, 11:54 PM   #18
2stuffed is offline 2stuffed  Australia
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Thanks for your thoughts, I'm going to make the larger box like the NS10T ,I have the XO to try. I have plenty of plywood .....
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Old 11th May 2016, 12:07 AM   #19
system7 is offline system7  United Kingdom
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A little 6 or 7" bass in 18L is never going to be a huge performer at the bottom end, but you can do a bit by lowering the midrange and top subjectively.

I ran XRK971 crossover up the flagpole based on what people say about this closed box speaker. Not bassy, and bright.

A few 10W wirewound resistors make things look better. 2kHz crossover looks right. Must push the tweeter quite hard.
Attached Images
File Type: png Yamaha NS10.PNG (19.5 KB, 130 views)
File Type: png Yamaha NS10 Improved Circuit.PNG (8.1 KB, 271 views)
File Type: png Yamaha NS10 Improved.PNG (19.5 KB, 113 views)
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Best Regards from Steve in Portsmouth, UK.
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Old 11th May 2016, 12:32 AM   #20
xrk971 is online now xrk971  United States
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Thanks for doing that System7. How do you happen to have the FRD files for these drivers already? Looks like all it needed was some padding for level balance between bass and tweet. Now we can get rid of the Kleenex.
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