TDL RTL3 Blown Mid Bass unit

Fanuc · 10th March 2006, 07:07 AM

Hello,

Just checked my pair of TDL RTL3 loudspeakers and one of the mid bass units is open circuit.

It has written on it 172-NS-06 and has squared off corners.

I beleive it is a Monacor drive unit and someone mentioned it may be a variant of a SPH 175 available.

Can I use one of these instead ?

Or does anyone have a original Mid/Bass for sale?

Any help appreciatted

daatkins · 10th March 2006, 10:16 AM

'Morning,

Vikash has some info about the RTL3 woofers:
http://vikash.info/audio/mtm_floorstander/

Nice one,
David.

Vikash · 10th March 2006, 10:23 PM

The current revision 175 will almost certainly have very different specs so the only way you would get consistency is to get a driver out of another pair of RTL3's. I'd keep an eye out on ebay as you get some TDL stuff from time to time.

316a · 10th March 2006, 10:28 PM

Hi ,
Lockwood Audio (Ruislip Middx UK) had piles of TDL drive units a few years ago . Maybe worth trying them ?

cheers

316a

Vikash · 10th March 2006, 10:28 PM

Infact, it was the same driver used in the RTL2 IIRC:
http://electronics.search.ebay.co.uk...1QQsacatZ14969

Some spare tweeters going there for cheap too. But that's probably how much they're worth anyway

Fanuc · 13th March 2006, 01:10 AM

Hello,

Thanks guys for the help. Yeah, I will probably pick up a pair of ebay!! as you say get a cheap pair of RTL2's and it will give me some spares.

The major problem with these speakers is there low impedance presented to underpowered amps (with a lack of current rather than voltage) causes clipping etc.

Vikash, I was wondering what tweeters you would recommend. ?

Have recently upgraded the crossover. Had burn't out resistors and caps and I put in decent film polyprops. Air core inductors etc may be an improvement also. Might do that later.

May have to hand draw (reverse engineer) the Xover schematic. Anyone got it ?

Thanks again.

Vikash · 13th March 2006, 05:54 PM

Some info in this thread: Rehousing speaker - TDL RTL3

and here: Help with first crossover

John W · 18th March 2006, 12:15 PM

You could try Speakerbits in Melbourne Australia

From their website-
TDL 5" magnetically shielded bass / midrange. These are genuine TDL spare parts - no data available though. The cones are a very nice coated paper / surround design. Uses would include centre speakers and small shielded monitors.
Stock code : ST115

They are in their Clearance pages $22 Australian

http://www.speakerbits.com

John

peterbrorsson · 18th March 2006, 06:20 PM

Hi there! I do'nt know if these are the same in RTL3 but these I believe sat in RTL2

Cheers

http://www.tb-speaker.com/detail/1208_03/w6-658a.htm

tomtt · 18th March 2006, 06:27 PM

e bay item- 9700102709 (in the uk)

10th March 2006, 07:07 AM	#1
Fanuc diyAudio Member Join Date: Feb 2006 Location: Leven, Fife	TDL RTL3 Blown Mid Bass unit Hello, Just checked my pair of TDL RTL3 loudspeakers and one of the mid bass units is open circuit. It has written on it 172-NS-06 and has squared off corners. I beleive it is a Monacor drive unit and someone mentioned it may be a variant of a SPH 175 available. Can I use one of these instead ? Or does anyone have a original Mid/Bass for sale? Any help appreciatted

10th March 2006, 10:23 PM	#3
Vikash diyAudio Moderator Emeritus Join Date: May 2003 Location: UK	The current revision 175 will almost certainly have very different specs so the only way you would get consistency is to get a driver out of another pair of RTL3's. I'd keep an eye out on ebay as you get some TDL stuff from time to time. __________________ "The human mind is so constituted that it colours with its own previous conceptions any new notion that presents itself for acceptance." - J. Wilhelm. (But I still think mine sounds better than yours.)

10th March 2006, 10:28 PM	#5
Vikash diyAudio Moderator Emeritus Join Date: May 2003 Location: UK	Infact, it was the same driver used in the RTL2 IIRC: http://electronics.search.ebay.co.uk...1QQsacatZ14969 Some spare tweeters going there for cheap too. But that's probably how much they're worth anyway __________________ "The human mind is so constituted that it colours with its own previous conceptions any new notion that presents itself for acceptance." - J. Wilhelm. (But I still think mine sounds better than yours.)

13th March 2006, 05:54 PM	#7
Vikash diyAudio Moderator Emeritus Join Date: May 2003 Location: UK	Some info in this thread: Rehousing speaker - TDL RTL3 and here: Help with first crossover __________________ "The human mind is so constituted that it colours with its own previous conceptions any new notion that presents itself for acceptance." - J. Wilhelm. (But I still think mine sounds better than yours.)

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10th March 2006, 10:16 AM	#2
daatkins diyAudio Member Join Date: Aug 2001 Location: Bath, UK	'Morning, Vikash has some info about the RTL3 woofers: http://vikash.info/audio/mtm_floorstander/ Nice one, David.

10th March 2006, 10:28 PM	#4
316a diyAudio Member Join Date: Dec 2002 Location: West London	Hi , Lockwood Audio (Ruislip Middx UK) had piles of TDL drive units a few years ago . Maybe worth trying them ? cheers 316a

13th March 2006, 01:10 AM	#6
Fanuc diyAudio Member Join Date: Feb 2006 Location: Leven, Fife	Hello, Thanks guys for the help. Yeah, I will probably pick up a pair of ebay!! as you say get a cheap pair of RTL2's and it will give me some spares. The major problem with these speakers is there low impedance presented to underpowered amps (with a lack of current rather than voltage) causes clipping etc. Vikash, I was wondering what tweeters you would recommend. ? Have recently upgraded the crossover. Had burn't out resistors and caps and I put in decent film polyprops. Air core inductors etc may be an improvement also. Might do that later. May have to hand draw (reverse engineer) the Xover schematic. Anyone got it ? Thanks again.

18th March 2006, 12:15 PM	#8
John W diyAudio Member Join Date: Nov 2002 Location: Sydney	You could try Speakerbits in Melbourne Australia From their website- TDL 5" magnetically shielded bass / midrange. These are genuine TDL spare parts - no data available though. The cones are a very nice coated paper / surround design. Uses would include centre speakers and small shielded monitors. Stock code : ST115 They are in their Clearance pages $22 Australian http://www.speakerbits.com John

18th March 2006, 06:20 PM	#9
peterbrorsson diyAudio Member Join Date: Jan 2006 Location: Cz Rep.	Hi there! I do'nt know if these are the same in RTL3 but these I believe sat in RTL2 Cheers http://www.tb-speaker.com/detail/1208_03/w6-658a.htm

18th March 2006, 06:27 PM	#10
tomtt diyAudio Member Join Date: Aug 2002 Location: kansas city mo, and on occasion, around the world ... Blog Entries: 15	e bay item- 9700102709 (in the uk)

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