Dynaudio 2 way DIY with automotive genes
Hi folks,
So I have been wanting for more than a decade to build a regular
2 way speaker for a secondary audio setup in a smaller room and
after many years of search, finally spotted a chance to buy tweeters
with pushed in domes( kids🙂) and a pair of MW 160 GT for a good
price. The box used to be a floorstander initially made for some
other drivers by another individual, sawed to a measure I felt right
about.
I was so curious to do the paint job myself and not having the proper
spray gun equipment, decided to apply the paints by brush. For priming
the raw mdf I had a 1k auto primer and as a finishing coat I chose the white
marine enamel. My plan was to apply at least three very thick layers
of enamel and then sand it down wet with 1000 grit paper.
I can tell you, now I appreciate much more this kind of work because
it is so much time consuming and a drag to do. Could only do one
side at a time so it dries over night. Those primer and enamel were
such bad smelling chemicals, I had to use a face filter mask.
With each layer of paint the surface looked much more even.
After the sanding process, glossiness was gone which I partially
managed to get back by polishing. The end result is a semi gloss
appearence. For the money invested, which was not much, I am
satisfied.
The speakers are playing very openly with enough of bass extension
considering bassmid is an auto speaker unit with a higher Fs and
lower Vas parameter than 8 ohm versions. Especially the vocals
and high frequencies appear unstrained and natural.
Vb:16,5 litres BR
Fb:52 Hz
Sensitivity: 84 dB/2,83V/1m
XO frequency: 2,2 kHz
Filter: LR4 acoustic
Bassmid: Dynaudio MW 160 GT
Tweeter: Dynaudio D260 Esotec
Thanks!
Hi folks,
So I have been wanting for more than a decade to build a regular
2 way speaker for a secondary audio setup in a smaller room and
after many years of search, finally spotted a chance to buy tweeters
with pushed in domes( kids🙂) and a pair of MW 160 GT for a good
price. The box used to be a floorstander initially made for some
other drivers by another individual, sawed to a measure I felt right
about.
I was so curious to do the paint job myself and not having the proper
spray gun equipment, decided to apply the paints by brush. For priming
the raw mdf I had a 1k auto primer and as a finishing coat I chose the white
marine enamel. My plan was to apply at least three very thick layers
of enamel and then sand it down wet with 1000 grit paper.
I can tell you, now I appreciate much more this kind of work because
it is so much time consuming and a drag to do. Could only do one
side at a time so it dries over night. Those primer and enamel were
such bad smelling chemicals, I had to use a face filter mask.
With each layer of paint the surface looked much more even.
After the sanding process, glossiness was gone which I partially
managed to get back by polishing. The end result is a semi gloss
appearence. For the money invested, which was not much, I am
satisfied.
The speakers are playing very openly with enough of bass extension
considering bassmid is an auto speaker unit with a higher Fs and
lower Vas parameter than 8 ohm versions. Especially the vocals
and high frequencies appear unstrained and natural.
Vb:16,5 litres BR
Fb:52 Hz
Sensitivity: 84 dB/2,83V/1m
XO frequency: 2,2 kHz
Filter: LR4 acoustic
Bassmid: Dynaudio MW 160 GT
Tweeter: Dynaudio D260 Esotec
Thanks!
Attachments
Those are smooth! The white paint gives a nice, clean look. Bummer about the domes on the tweets.
Thanks 6th, I had used up 2 cans of 750 ml enamel so I could sand
them without worrying of breaking through. Tweeters were damaged
and on account of it cheap, just what I was hoping for. I did everything
to set them right but unfortunalety the silky material with its coating
just jumps right back. The impedance and FR measurements were ok
so I chose to be at peace.
Your speakers are work of art compared to my cuboids🙂.
If the diaphragms are removable and you can access the backside, put something in the back to form fit the shape (like a broom handle or cotton wadding) and warm it with a hairdryer. Wait till it cools before removing the form.
Speakers: Duetta by Acoustic Design Wohlgemuth - German Engineering by Eton
Magazine | Loudspeakerbuilding
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Denon AVR 4520 for movies and driving the other speakers
Magazine | Loudspeakerbuilding
Powered with Hifiakademie PowerDAC with Netplayer Upgrade,
Denon AVR 4520 for movies and driving the other speakers
Cal,
a great idea! I actually did remove the self centering dome voice coil assembly
and gave it a hairdryer treatment but without putting anything for support,
just used a finger to set right without success. I will reflect on your suggestion.
Cheers!
a great idea! I actually did remove the self centering dome voice coil assembly
and gave it a hairdryer treatment but without putting anything for support,
just used a finger to set right without success. I will reflect on your suggestion.
Cheers!
No guarantees. I wonder if there's something you can 'moisten' the dome with to try and reset it. Some sort of solvent or something like acts like water when used in ironing clothes?
Dear,
It's a loudspeaker with 3-way, passive crossover and high sensitivity.
I used the woofer JBL 2226H, PHL 10" as mid and Fountek ribbon for the high frequency.
Below are some photos:
It's a loudspeaker with 3-way, passive crossover and high sensitivity.
I used the woofer JBL 2226H, PHL 10" as mid and Fountek ribbon for the high frequency.
Below are some photos:
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10 inch dedicated PHL mid driver
Hi XMax,
Congratulations on a nice build!
I have used 6.5 and 8 inch PHL mids and loved them in sealed cabinets.
I am interested in your thoughts on the performance of the 10 inch PHL midrange.
Which model & impedance is it...There are a few variations!
I have always wondered how it's dispersion would blend in with a good ribbon or AMT?
Where do you cross it over?
Please tell me you are using a nice DSP crossover and active amplification....Your great cabinet skills and high quality driver selection deserve the best!
Thanks and good luck
Derek.
Hi XMax,
Congratulations on a nice build!
I have used 6.5 and 8 inch PHL mids and loved them in sealed cabinets.
I am interested in your thoughts on the performance of the 10 inch PHL midrange.
Which model & impedance is it...There are a few variations!
I have always wondered how it's dispersion would blend in with a good ribbon or AMT?
Where do you cross it over?
Please tell me you are using a nice DSP crossover and active amplification....Your great cabinet skills and high quality driver selection deserve the best!
Thanks and good luck
Derek.
Dears,
My English is not the best, but not to include too much technical information in this post, I will open a specific topic designed to these small speakers ...
When open topic, post the link here, ok?
Tks,
Renato
My English is not the best, but not to include too much technical information in this post, I will open a specific topic designed to these small speakers ...
When open topic, post the link here, ok?
Tks,
Renato
Dears,
Open new topic:
http://www.diyaudio.com/forums/multi-way/261098-dad-prime-my-big-loudspeaker-toy.html
Tks,
Renato
Open new topic:
http://www.diyaudio.com/forums/multi-way/261098-dad-prime-my-big-loudspeaker-toy.html
Tks,
Renato