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Multi-Way Conventional loudspeakers with crossovers

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Old 23rd February 2019, 11:11 PM   #91
Coasttocoast is offline Coasttocoast  United States
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Join Date: Jul 2012
Location: Honolulu
First up this morning was to build some riser blocks to elevate the speakers on carts for the painting process.

Then into the booth and a first coat of Chromax 2K high build primer (Automotive). Waited two hours, as spec’d, and then spread some Rage Gold filler (Automotive) on gaps, nail holes, etc

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While I was waiting for the primer to dry I built the actual bases for the speakers. The front corners will get rounded over to match the speaker cabinets. The casters are 2 3/4” tall when installed, I made the base 2 5/8” tall to hide the casters. The casters are adjustable, so depending on what type of flooring the casters can be adjusted down if needed. The casters came with a locking mechanism. I will use these in the rear, to be able to lock the speaker in place, which requires a 3 1/2” radius clear area to swivel. For the front I will remove the lock so I can push the location closer to the front corners for better stability.

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Babelfish J as Aleph 2, McIntosh C2300, RAKK DAC Mark IV Extreme, Oppo UDP-203 DVD/CD, Custom SP10 MKII/SME 312s/Koetsu Urushi Black, Magna Mano streamer, Tidal through Roon, Nui Horn Speaker’s (Big Speaker) w/Hypex Fusion 501’s, Transparent Ultra cables.
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Old 25th February 2019, 12:21 AM   #92
Coasttocoast is offline Coasttocoast  United States
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Join Date: Jul 2012
Location: Honolulu
Usually Sunday is Family Day. Go to the beach, scenic drive, picnic, etc. My wife volunteered to help out a friend, so I went to the shop and spent the day sanding and priming again.

Yesterday I sprayed one coat of primer and then spread a little filler. Better results are had by applying the filler on the primer instead of first. That way the primer fills the pores of the wood and not the filler so more consistent.

By applying only one coat of primer I fill the pores for the filler and then the thin coat acts like a guide to show if your digging a hole, so to speak. Both the filler and the primer are softer than the Medex, so not completely bad to get some sand through at this stage. But if you had two coats of primer you were sanding through you might have to spend extra time blocking it out so it wouldn’t show.

Anyway, happy with the results today, only minimal defect showing. Maybe a little spot putty here and there before the next sanding. Planning on having ready to spray color next weekend.

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__________________
Babelfish J as Aleph 2, McIntosh C2300, RAKK DAC Mark IV Extreme, Oppo UDP-203 DVD/CD, Custom SP10 MKII/SME 312s/Koetsu Urushi Black, Magna Mano streamer, Tidal through Roon, Nui Horn Speaker’s (Big Speaker) w/Hypex Fusion 501’s, Transparent Ultra cables.
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Old 3rd March 2019, 06:09 AM   #93
Coasttocoast is offline Coasttocoast  United States
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Join Date: Jul 2012
Location: Honolulu
Default Now in color!

Started my Saturday early with a sander. I should find better things to do here in Hawaii on a weekend!

Before I actually started sanding the primer I sprayed last weekend, I went over the entire surface with a high intensity light and marked all pin holes/defects and then hit with a little glazing putty.

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Sanded the entire surface with 600 grit, then a little Cromax rattle can bumper paint on all sand through or glazing putty. Seems a little strange product to use, but it dries quick and keeps the final paint from “flashing” at these spots. Great trick to use on last minute touch ups. The most minute defect gets amplified in the final paint.

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Then 2 coats of Cromax automotive paint, through a Sata gun, 1.4 tip, 65lbs pressure.

Turned out really good, next weekend or so I’ll be wetsanding and polishing. With this product you can actually wet sand the next day, but I find the paint is still too soft and makes it harder to polish.

Then ready for assembly!

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__________________
Babelfish J as Aleph 2, McIntosh C2300, RAKK DAC Mark IV Extreme, Oppo UDP-203 DVD/CD, Custom SP10 MKII/SME 312s/Koetsu Urushi Black, Magna Mano streamer, Tidal through Roon, Nui Horn Speaker’s (Big Speaker) w/Hypex Fusion 501’s, Transparent Ultra cables.
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Old 3rd March 2019, 01:12 PM   #94
beardman is offline beardman  Denmark
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Join Date: Jan 2005
Location: a littlee town in western denmark
Hi
you are lucky to have such great place to make speaker

they must be really great looking..

follow with interest how it goes

I have once again tried my Hypex amp to the 18 "
it does not work here,,my Gryphon amp sound a good deal better in the bass area
(even my wife said it )

i have also change the filter to the 18".....a C-Coil with lower ohm and all film cap
all Janzen component

Best Bjarne
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Old 3rd March 2019, 01:51 PM   #95
Alex M is online now Alex M  Europe
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Join Date: Apr 2001
Location: Hampshire, UK
Quote:
Originally Posted by beardman View Post
I have once again tried my Hypex amp to the 18 "
it does not work here, my Gryphon amp sound a good deal better in the bass area (even my wife said it )
I know this is an obvious question, and apologies in advance if I am teaching Granny to suck eggs, but you did gain match the Hypex and the Gryphon amplifiers, didn't you?

Alex
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Old 3rd March 2019, 02:42 PM   #96
beardman is offline beardman  Denmark
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Join Date: Jan 2005
Location: a littlee town in western denmark
hi Alex

No problem ..asking

yes i have gain mach,, trying different things--several gain ,,,but there are something that not plays right
i have the same thing with Groundsound filter and amp,,but with my old speaker..2 different amp...it is not me....better with ordinary filter
i am just super happy with my speaker,,,
best bjarne
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Old 3rd March 2019, 02:51 PM   #97
Alex M is online now Alex M  Europe
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Join Date: Apr 2001
Location: Hampshire, UK
Quote:
Originally Posted by beardman View Post
hi Alex

No problem ..asking

yes i have gain mach,, trying different things--several gain ,,,but there are something that not plays right
i have the same thing with Groundsound filter and amp,,but with my old speaker..2 different amp...it is not me....better with ordinary filter
i am just super happy with my speaker,,,
best bjarne
Could you put your finger on what it was that you found less satisfying with the Hypex amps?

I am interested because my next project will use a couple of Hypex PSC2.400d plate amps to drive 11" woofers. I am aware that there is a latency of a couple of milliseconds in the digital filter of the Hypex (as has been mentioned before on this forum), and this is potentially audible. An analogue filter wouldn't introduce this delay.

Alex
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Old 3rd March 2019, 04:04 PM   #98
beardman is offline beardman  Denmark
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Join Date: Jan 2005
Location: a littlee town in western denmark
The definition in the bass from Gryphon is better,,,more strong not so rounded..better dynamic ..the sound overall has more coherency
but remember it is not day and night difference

maybe it is because the crossover point at 200hz

i have use the hypex (same as yours) in my brothers speaker,,,30w scanspeak woofer
(those are for sale now ) there the hypex sound really good,,but the crossover was 100hz,,,so is it because the lower crossover ?
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Old 3rd March 2019, 04:12 PM   #99
Coasttocoast is offline Coasttocoast  United States
diyAudio Member
 
Join Date: Jul 2012
Location: Honolulu
Quote:
Originally Posted by beardman View Post
Hi
you are lucky to have such great place to make speaker

they must be really great looking..

follow with interest how it goes

I have once again tried my Hypex amp to the 18 "
it does not work here,,my Gryphon amp sound a good deal better in the bass area
(even my wife said it )

i have also change the filter to the 18".....a C-Coil with lower ohm and all film cap
all Janzen component

Best Bjarne
Thanks for your comments.

Yes it’s great to have access to a shop like this. But a curse too, I wouldn’t take on projects like this without out it. Could take up surfing!

Really interested in your comments about power for the 18”. I have the full crossover components, and am planning on installing in the compartment. But there for later trials.

Your amp puts out 500wpc, so you have the power to run the 18”. I have a strong 100wpc amps, so not a option for my current equipment.

Have you run the Hypex both ways? With DSP and not through crossover, or with DSP off and through the crossover?
__________________
Babelfish J as Aleph 2, McIntosh C2300, RAKK DAC Mark IV Extreme, Oppo UDP-203 DVD/CD, Custom SP10 MKII/SME 312s/Koetsu Urushi Black, Magna Mano streamer, Tidal through Roon, Nui Horn Speaker’s (Big Speaker) w/Hypex Fusion 501’s, Transparent Ultra cables.
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Old 3rd March 2019, 04:27 PM   #100
beardman is offline beardman  Denmark
diyAudio Member
 
Join Date: Jan 2005
Location: a littlee town in western denmark
i have only tried the hypex with DSP

i have tried a 200w holton amp on the speaker,,,absolute no problem

so i think 100w will drive the speaker very good (remember troels use 60w tube on the top )
only thing to take care of with the amp,,must drive 3 ohm (3ohm impedance about 120hz with passive filter)
i must say ,it is my opinion about hypex or not,,other will maybe say the opposite ,,we all listen different
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