Recommend ~600W 18" front loading sub driver

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   Hi all,

Been looking at my old sound system and have got some blown drivers to replace.

Front loaded, ported cabs from Intimidation.

Back of the cab says: 8ohm 600w RMS 1200w peak.

Driver has no manufacturer's mark, just a barcode.

One driver is making the sound of coil grinding/scraping blown, the other showing no continuity but otherwise seems good!

Anyway, as they are no-name drivers I'm assuming repair is unlikely.

Please recommend me some of your favourite 18s in this power region. They will mostly be used up to 100hz.

Any thoughts welcome,

Jim

PS Forgot to mention that they will be driven with a t.amp 2400 mk x

Edited by jimi13243 - 09 January 2022 at 9:44pm

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jimi13243 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 June 2014 Location: West Midlands Status: Offline Points: 77	Post Options Post Reply Quote jimi13243 Report Post Thanks(0) Quote Reply Topic: Recommend ~600W 18" front loading sub driver Posted: 09 January 2022 at 9:42pm
	Hi all, Been looking at my old sound system and have got some blown drivers to replace. Front loaded, ported cabs from Intimidation. Back of the cab says: 8ohm 600w RMS 1200w peak. Driver has no manufacturer's mark, just a barcode. One driver is making the sound of coil grinding/scraping blown, the other showing no continuity but otherwise seems good! Anyway, as they are no-name drivers I'm assuming repair is unlikely. Please recommend me some of your favourite 18s in this power region. They will mostly be used up to 100hz. Any thoughts welcome, Jim PS Forgot to mention that they will be driven with a t.amp 2400 mk x Edited by jimi13243 - 09 January 2022 at 9:44pm
	Peace and dub

VECTORDJ Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 11 June 2006 Location: United States Status: Offline Points: 515	Post Options Post Reply Quote VECTORDJ Report Post Thanks(0) Quote Reply Posted: 09 January 2022 at 11:12pm
	I like B and C 18TBX100. High Power. Works good in a wide range of cab sizes and designs. VECTORSONICS

csg Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 17 September 2007 Location: bedford Status: Offline Points: 6086	Post Options Post Reply Quote csg Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 9:06am
	You kinda need to find a driver that will work with the box’s volume and tuning. Plenty of apps / software out there to simulate how different drivers behave so get your tape measure out! The good news is that the focus of most manufacturers R&D depts. is on drivers that will work best in compact reflex enclosures so you will have a good choice The bad news is that enclosures from budget brands such as intimidation tend to be poorly braced and weakly constructed, i’m not sure i’d be throwing a lot of cash at them unless these boxes are the exception to that rule.
	“The fact is this is about identifying what we do best and finding more ways of doing less of it better”

snowflake Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3122	Post Options Post Reply Quote snowflake Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 10:20am
	if you are sure they were suitable original drivers then send them to be re-coned. anyone competent will be able to replace the moving parts with something similar to give approximately the same t/s parameters.

jimi13243 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 June 2014 Location: West Midlands Status: Offline Points: 77	Post Options Post Reply Quote jimi13243 Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 10:49am
	Thanks for the advice chaps, I'll come back with some more pictures and some measurements. Can't be sure the originals were well suited but they always sounded good to me! Jim
	Peace and dub

jimi13243 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 June 2014 Location: West Midlands Status: Offline Points: 77	Post Options Post Reply Quote jimi13243 Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 2:12pm
	Ok, Here's the pictures and measurements:
	Peace and dub

jimi13243 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 June 2014 Location: West Midlands Status: Offline Points: 77	Post Options Post Reply Quote jimi13243 Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 2:21pm
	So: 0.6480.5080.459 = 0.151m^3 OR 151 litres internal volume deduct ~2 litres for handles, electronics, bracing etc. Leaves ~149 litres internal volume Port area= (24.47.5) + (257.5) = 183cm^2 + 187.5cm^2 = 370.5cm^2 port area which travels along a 15cm throat. I don't know if the area between the bracing is relevant but I measured it anyway so: 36.438.4 = 1400cm^2 area between bracing.* Where do I plug these numbers then? Thanks, Jim Edited by jimi13243 - 10 January 2022 at 2:23pm
	Peace and dub

jimi13243 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 June 2014 Location: West Midlands Status: Offline Points: 77	Post Options Post Reply Quote jimi13243 Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 4:03pm
	Here's the original driver. As far as I can tell, the barcode only encodes the serial below it: D320805104 Edited by jimi13243 - 10 January 2022 at 4:05pm
	Peace and dub

njw Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 March 2010 Location: S. Wales Status: Offline Points: 2574	Post Options Post Reply Quote njw Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 4:12pm
	^^^That looks like the box 500/8 driver from Thomann.

jimi13243 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 June 2014 Location: West Midlands Status: Offline Points: 77	Post Options Post Reply Quote jimi13243 Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 4:43pm
	Just had a look on catalogue, yeah it does! Maybe same manufacturer ultimately then.
	Peace and dub

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: 11776	Post Options Post Reply Quote ceharden Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 5:13pm
	Do you use the internal passive crossovers? If so, time to ditch them and use an active crossover.

jimi13243 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 June 2014 Location: West Midlands Status: Offline Points: 77	Post Options Post Reply Quote jimi13243 Report Post Thanks(0) Quote Reply Posted: 10 January 2022 at 5:24pm
	Nope, I have an active crossover at 100hz from studiomaster. Old thing with swappable cards to set Hz. The internal xover you see can be optionally activated with a switch on the rear for filtering of passthrough signal to satellite speakers. I've never used it since I've always ran the subs as part of 2 way active. Oh yeah someone near me has a 4 pd186 for sale. Thinking they might sound pretty good if he'll sell a pair... Edited by jimi13243 - 10 January 2022 at 5:29pm
	Peace and dub