New 3-way mid-top

Nice looking box

Never criticise another man until you've walked a mile in his shoes. Once you have, call him what you like, you're a mile away and you've got his shoes!

really nice Chris.

bet it sounds great.

Luckily I'm able to get wood CNC'd fairly easily. I'm far too lazy nowadays to cut everything from scratch. Still took many hours working on the CAD though.

I haven't gigged them yet but testing so far is promising. The 8" is covering ~400Hz to 2.4kHz and the TiN diaphragm on the 1" is quite nice. The impedance lumps on the 1" around the crossover region caused a few issues with the passive crossover design but managed to make it work without adding lots of extra compensation components. If you're wondering, 2.4kHz was settled on because it's a half wavelength of the 8"/1" driver offset so you can effectively get them in phase at the crossover point. Yes you get issues either side but it works well enough.

It's the first cab I've designed for myself for a long time, have had the drivers lying around for years. Originally I was working on all kinds of complex horn loaded designs but realised for a lot of the jobs I do in small venues, something like this would be far more useful.

Next up is something new to do the bass underneath...

Sometimes, reflex is all you need!

Look tidy. Personally I may have tried a 15/8/1, just to help out lower, but obviously box size goes up, which I presume was not your aim!

Bit of a fan of a mid doing 400-2.5K ish. I have always had a worry about voice fundamentals 200-400, and then rest of voice in a different driver, but seems to hold together in my experiences.

Matt Stolton - Technical Director (!!!) - Wilding Sound Ltd
"Sparkius metiretur vestra" - "Meter Your Mains"

tidy looking enclosure

In the Truth there is no news, and in the News there is no truth

Hey does your cnc guys charge much? I need to get some cabs sorted for someone and im not far away from you

Love this new top btw

me so horny me love you long throw
horn loaded for her pleasure

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ceharden Members Profile Send Private Message Find Members Posts Add to Buddy List The 10,000 Points Club Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11667	Post Options Post Reply Quote ceharden Report Post Thanks(0) Quote Reply Topic: New 3-way mid-top Posted: 01 March 2020 at 8:24pm
	Another much overdue new design: 3-way mid-top for small venues. 12"+8"+1". Getting the combined rear chamber and port design right took a bit of thought. Drivers are all 18Sound. 12ND930, 8M400 and NSD1095 on XR1064. Runs 2-way active with a custom passive crossover between the 8" and 1".

colint Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 06 October 2007 Location: United Kingdom Status: Offline Points: 5195	Post Options Post Reply Quote colint Report Post Thanks(0) Quote Reply Posted: 01 March 2020 at 9:49pm
	Nice looking box
	Never criticise another man until you've walked a mile in his shoes. Once you have, call him what you like, you're a mile away and you've got his shoes!

Dub Specialist Sound Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 15 November 2013 Location: Smethwick Status: Offline Points: 4873	Post Options Post Reply Quote Dub Specialist Sound Report Post Thanks(0) Quote Reply Posted: 01 March 2020 at 9:51pm
	Nice build , nice works..respect..
	Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...

JonB67 Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 22 April 2016 Location: UK Status: Offline Points: 1351	Post Options Post Reply Quote JonB67 Report Post Thanks(0) Quote Reply Posted: 01 March 2020 at 10:53pm
	really nice Chris. bet it sounds great.

VECTORDJ Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 11 June 2006 Location: United States Status: Offline Points: 463	Post Options Post Reply Quote VECTORDJ Report Post Thanks(0) Quote Reply Posted: 01 March 2020 at 11:21pm
	A+

ceharden Members Profile Send Private Message Find Members Posts Add to Buddy List The 10,000 Points Club Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11667	Post Options Post Reply Quote ceharden Report Post Thanks(0) Quote Reply Posted: 02 March 2020 at 1:06am
	Luckily I'm able to get wood CNC'd fairly easily. I'm far too lazy nowadays to cut everything from scratch. Still took many hours working on the CAD though. I haven't gigged them yet but testing so far is promising. The 8" is covering ~400Hz to 2.4kHz and the TiN diaphragm on the 1" is quite nice. The impedance lumps on the 1" around the crossover region caused a few issues with the passive crossover design but managed to make it work without adding lots of extra compensation components. If you're wondering, 2.4kHz was settled on because it's a half wavelength of the 8"/1" driver offset so you can effectively get them in phase at the crossover point. Yes you get issues either side but it works well enough. It's the first cab I've designed for myself for a long time, have had the drivers lying around for years. Originally I was working on all kinds of complex horn loaded designs but realised for a lot of the jobs I do in small venues, something like this would be far more useful. Next up is something new to do the bass underneath...

odc04r Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5483	Post Options Post Reply Quote odc04r Report Post Thanks(0) Quote Reply Posted: 02 March 2020 at 10:54am
	Nice work there, I still have a load of your old bits in the garage and one day I'll do a similar project. Sometimes trying tomake the best thing you can out of a pile of odd bits is an interesting challenge. You don't go back once you've got a decent CNC though do you. I was thinking the other day that with the right workflow angled cuts wouldn't be too hard or take too long.

MattStolton Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 04 September 2010 Location: Walthamstow Status: Offline Points: 4229	Post Options Post Reply Quote MattStolton Report Post Thanks(0) Quote Reply Posted: 02 March 2020 at 2:31pm
	Sometimes, reflex is all you need! Look tidy. Personally I may have tried a 15/8/1, just to help out lower, but obviously box size goes up, which I presume was not your aim! Bit of a fan of a mid doing 400-2.5K ish. I have always had a worry about voice fundamentals 200-400, and then rest of voice in a different driver, but seems to hold together in my experiences.
	Matt Stolton - Technical Director (!!!) - Wilding Sound Ltd "Sparkius metiretur vestra" - "Meter Your Mains"

MPASOUND Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 25 April 2006 Location: UK Status: Offline Points: 237	Post Options Post Reply Quote MPASOUND Report Post Thanks(0) Quote Reply Posted: 04 March 2020 at 10:05am
	Very nice looking project! NSD1095n is my favourite 1" driver.
	It's just bits of paper flapping about in a box.

dlyxover Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 14 June 2007 Location: Liverpool Status: Offline Points: 1491	Post Options Post Reply Quote dlyxover Report Post Thanks(0) Quote Reply Posted: 05 March 2020 at 7:37pm
	tidy looking enclosure
	In the Truth there is no news, and in the News there is no truth

BP1Fanatic Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 02 August 2009 Location: Columbus, Ohio Status: Offline Points: 103	Post Options Post Reply Quote BP1Fanatic Report Post Thanks(0) Quote Reply Posted: 10 March 2020 at 6:12pm
	Nice work! Can you post some measured graphs?

Mark James Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 15 January 2006 Location: rig side Status: Offline Points: 5293	Post Options Post Reply Quote Mark James Report Post Thanks(0) Quote Reply Posted: 11 March 2022 at 1:39pm
	Hey does your cnc guys charge much? I need to get some cabs sorted for someone and im not far away from you Love this new top btw
	me so horny me love you long throw horn loaded for her pleasure