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Multi-Way Conventional loudspeakers with crossovers

Dayton Audio MK402 crossover upgrade
Dayton Audio MK402 crossover upgrade
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Old 29th September 2019, 09:51 AM   #1
diysub is offline diysub
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Default Dayton Audio MK402 crossover upgrade

Hi,

I have a pair of the Dayton Audio MK402 speakers. There is a new version, called Dayton Audio MK402X with upgraded crossovers but with the same speakers. I want to upgrade mine. Could anybody make a schematics of this?

Click the image to open in full size.

How could I find out the values of the coils?

Thank you in advance.
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Old 29th September 2019, 03:26 PM   #2
Galu is offline Galu  Scotland
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Bear in mind that the manufacturer's description of the advantages of the upgraded crossover may be prone to exaggeration!

Quote:
The Dayton Audio MK402X bookshelf speaker pair has the same amenities as the popular MK402 but an upgraded, more refined crossover delivers a smoother, non-fatiguing high-end.
The photo you show is of the upgraded crossover and, for anyone willing to help, here is the manufacturer's description:

Quote:
It features a 3.3 kHz,1st order high-pass, 2nd order low-pass filter. The 7-component crossover uses asymmetrical slopes.
P.S. Inductors are not normally labelled so usually have to be measured, which would not be possible unless you actually obtain the new version of the speakers. The manufacturer is unlikely to tell you.

P.P.S It appears that the manufacturer can't make up their mind!
Quote:
3.3 kHz, 3rd order high-pass, 2nd order low-pass (asymetrical slopes)

Last edited by Galu; 29th September 2019 at 03:40 PM. Reason: Added the P.S. and the P.P.S.!
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Old 29th September 2019, 05:39 PM   #3
DickHertz is offline DickHertz  United States
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There's a picture of your 402 crossover in this thread:

Dayton MK402 Bookshelf Speaker Review

Quite a bit different from the new version. Looks upgrading is going to require a new crossover.
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Old 29th September 2019, 11:18 PM   #4
Galu is offline Galu  Scotland
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Quote:
Originally Posted by DickHertz View Post
According to the above review, the MK402 was indeed in need of upgrading!

Quote:
"I'm not going to spend much time explaining how many ways this speaker (the MK402) fails sonically. This is not a good sounding speaker, take my word for it."
At the end of the day, the improved MK402X version is only $70 a pair, and to upgrade the crossover of your MK402 to match the new one could cost almost as much!

https://www.amazon.com/Dayton-Audio-.../dp/B07TB1P7XJ
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Old 30th September 2019, 01:39 AM   #5
wushuliu is offline wushuliu  United States
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Dayton Audio MK402 crossover upgrade
Quote:
Originally Posted by Galu View Post
According to the above review, the MK402 was indeed in need of upgrading!
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Wow, if he didn't like them they must be really bad. He's not exactly the pickiest reviewer - just as his site name suggests.
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Old 30th September 2019, 07:26 AM   #6
Lojzek is offline Lojzek  Croatia
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I can't imagine what the issue is with the improved crossover. Do people mean to say that they learned actually nothing despite of all what has been written in this forum?
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Old 30th September 2019, 11:27 AM   #7
Galu is offline Galu  Scotland
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Quote:
Originally Posted by Lojzek View Post
I can't imagine what the issue is with the improved crossover. Do people mean to say that they learned actually nothing despite of all what has been written in this forum?
I'm confused by your statement as nobody has stated that there is an issue with the improved crossover.

The improved crossover is obviously superior (in component count at least) to the original one!

However, it may cost diysub almost as much to duplicate the improved version of the crossover as to purchase the improved version of the loudspeaker.

I say this because the manufacturer has a distinct advantage in component cost due to bulk buying.

If you are arguing that DIY satisfaction should be the prime objective, then I'm sure diysub will be happy if someone can help him with the schematic and inductor values he requests.
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