Merlin Music VSM - Crossover Upgrade

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drphoto

Re: Merlin Music VSM - Crossover Upgrade
« Reply #20 on: 15 Mar 2024, 09:31 pm »
Very cool. Thanks. Hey if ya feel like it......hit me up on message (don't want to derail thread) Got a quick question for you on sports cars vs audio....assuming you can't afford both!

BrandonB

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Re: Merlin Music VSM - Crossover Upgrade
« Reply #21 on: 12 Apr 2024, 11:59 am »
Duelund has some fairly new polypropylene caps... Duelund Cast PP. 

Crossover parts on the way... all Duelund Cast PP caps and Duelund resistors, including Duelund CAST PIO bypass caps.  Also using copper foil inductors.   


For some reason those speakers look like they should have Deuland parts.

BrandonB

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Re: Merlin Music VSM - Crossover Upgrade
« Reply #22 on: 12 Apr 2024, 04:34 pm »
I have another speaker that I couldn't pass up buying recently... Odyssey Lorelei.  It uses the same 8545 woofer as in the VSM but a different tweeter - Scan-Speak D2905-970000. The cabinet is bigger than the VSM, crossover is different (but has HIGH quality parts)... and it outputs MUCH more bass than the VSM.  The 8545 can output huge bass, not just for its size - but actual big bass.  I'm looking forward to hearing that better low end balance with this new VSM crossover. 

It seems it can hard to have your cake and eat it too with a woofer for 2-way design... good low end response AND smooth thru the midrange.  Danny fixed the issue the 8545 has around 700Hz and made it behave - so I should have both extension AND midrange from the 8545.  Seeing that result from the design, and being so happy with the job Danny did my Wilson Audio Duette, I am spending 2X money on the crossover for the VSM, and it has fewer parts than the Duette.  Right now I am breaking in a second set of crossovers for the Duette (a friend has other set of burned in crossovers) so I am hearing a direct comparison to "fresh" vs "broken in" crossover parts for the same crossover design, same speaker, same parts. I was also using Duelund JDM bypass caps on the other Duette crossover (which I sold to my friend).  For the Duette right now I have some little JB Bypass caps...so that is one difference between them.  I definitely prefer the sound of the broken in crossovers with Duelund bypass caps.  Hearing how transformative this can be, I went "more Duelund" / All for the VSM and spent the money.

Depending on how this works out I may end up building another set of crossovers for the Duette using better parts, like in the VSM.  There is definitely a lot going on with "parts" and I am a believer thru experience.

Here is the Odyssey Lorelei next to the Duette:


How many sets of speakers do you have?  I have duelands bypassing on my NX-Otica's being built.  I wish I would have gotten Deuland resistors instead of path but they are much larger and harder to fit in the design. 

Tyson

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Re: Merlin Music VSM - Crossover Upgrade
« Reply #23 on: 13 Apr 2024, 04:42 am »
Nice.  Looks like industrial art.

BrandonB

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Re: Merlin Music VSM - Crossover Upgrade
« Reply #24 on: 13 Apr 2024, 04:38 pm »
That looks very cool.  Are you going to display the crossover somehow so they can be seen?

jmimac351

Re: Merlin Music VSM - Crossover Upgrade
« Reply #25 on: 13 Apr 2024, 09:11 pm »
That looks very cool.  Are you going to display the crossover somehow so they can be seen?

Yes, I'm going to put vertical trim around them and install 3D printed tube connector mounts to the board.

Early B.

Re: Merlin Music VSM - Crossover Upgrade
« Reply #26 on: 25 Apr 2024, 03:37 pm »
Very cool! 

Tyson

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Re: Merlin Music VSM - Crossover Upgrade
« Reply #27 on: 25 Apr 2024, 04:54 pm »
VSM's were already pretty good speakers, sounds like they are now world-class speakers after the upgrade.

Tyson

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Re: Merlin Music VSM - Crossover Upgrade
« Reply #28 on: 17 May 2024, 12:33 am »
IME, the 8545 is more of a mid/bass woofer and the M165NQ is more of a no-compromise pure midrange driver (that also happens to be able to do decent bass).