TSL122 and Marshall 2x12 Cab?

nsureit · 11-07-2008, 07:38 PM

My TSL122 is a 16 ohm 2x12 combo. My cab is a Marshall MC212 2x12 that runs at 8 ohms in stereo, or 4 ohms in mono. Can I run both the combo and this cab together? Here's the back of the combo. It's running at 16 ohms as shown though the dedicated 16 ohm output jack.

If I plug the combo speakers into one of the other outputs and the 2x12 cab through the other, do I set the switch to 4 ohm or 8 ohm? Can it work without problems or issues? Thank you!

jtm-series player · 11-08-2008, 11:11 AM

set the combo to 8ohms, use the internal 16ohms speakers and serial-wire the 2 8ohm speakers of your extension-cab
(then it has 16ohms too).

the original tsl extension is a 16ohms cab with the same speakers in it - a V30 and a greenback; is that right?

***Adwex*** · 11-08-2008, 12:30 PM

As stated in the above post, the only way you can properly match the impedance of the amp and both cabs is to re-wire the speakers in the extension cab in series so that the 2 8 ohm speakers combine for a total of 16 ohms. This way you'll have 2 16 ohm cabs, that when plugged into the amp will combine in parallel to equal 8 ohms. Then set the amp for 8 ohms.

If you don't re-wire the 4 ohm extension cab, you cannot match the impedance exactly. The 16 ohm combo cab will combine with the 4 ohm extension cab to equal 3.2 ohms, and your amp doesn't have a setting for that. You might be safe, but there's no guarantee. If you match the impedance, you are safe.

jtm-series player · 11-08-2008, 12:42 PM

that's what I wanted to say with my "germenglish" post

nsureit · 11-09-2008, 12:34 AM

Thank you folks, it works perfectly!

I love this forum!

11-07-2008, 07:38 PM	#1 (permalink)
nsureit Junior Member Join Date: Nov 2008 Location: Dallas, TX Posts: 18	TSL122 and Marshall 2x12 Cab? My TSL122 is a 16 ohm 2x12 combo. My cab is a Marshall MC212 2x12 that runs at 8 ohms in stereo, or 4 ohms in mono. Can I run both the combo and this cab together? Here's the back of the combo. It's running at 16 ohms as shown though the dedicated 16 ohm output jack. If I plug the combo speakers into one of the other outputs and the 2x12 cab through the other, do I set the switch to 4 ohm or 8 ohm? Can it work without problems or issues? Thank you! __________________ Les Paul Jr. John Lennon Commemorative * '03 LP Supreme * Gretsch 6119-62 TN Rose * American Deluxe Strat HSS * Ibanez EP9 Euphoria Steve Vai Acoustic * Breedlove AC25/SR+ 12 String Acoustic * Epiphone Viola Bass * Marshall JCM2000/TSL 122 * Marshall AS50R Acoustic Amp * VOX AC-15 Mahogany Heritage Ltd Amp * Effects: too numerous to list *

11-08-2008, 11:11 AM	#2 (permalink)
jtm-series player Senior Member Join Date: Apr 2008 Location: europe/austria/graz Posts: 331	Re: TSL122 and Marshall 2x12 Cab? set the combo to 8ohms, use the internal 16ohms speakers and serial-wire the 2 8ohm speakers of your extension-cab (then it has 16ohms too). the original tsl extension is a 16ohms cab with the same speakers in it - a V30 and a greenback; is that right? __________________ WTB: Ibanez AD202 Analog Delay (european version) Marshall JTM622 + JTMc 220 Marshall JTM600 + JTMc 410 Marshall JTM312 + JTMc 112 Marshall 2558 (silver jubilee) for sale

11-08-2008, 12:30 PM	#3 (permalink)
*Adwex* Super Moderator Join Date: Sep 2006 Location: Long Island, NY Posts: 1,631	Re: TSL122 and Marshall 2x12 Cab? As stated in the above post, the only way you can properly match the impedance of the amp and both cabs is to re-wire the speakers in the extension cab in series so that the 2 8 ohm speakers combine for a total of 16 ohms. This way you'll have 2 16 ohm cabs, that when plugged into the amp will combine in parallel to equal 8 ohms. Then set the amp for 8 ohms. If you don't re-wire the 4 ohm extension cab, you cannot match the impedance exactly. The 16 ohm combo cab will combine with the 4 ohm extension cab to equal 3.2 ohms, and your amp doesn't have a setting for that. You might be safe, but there's no guarantee. If you match the impedance, you are safe. __________________ http://www.youtube.com/MarshallLesPaul

11-08-2008, 12:42 PM	#4 (permalink)
jtm-series player Senior Member Join Date: Apr 2008 Location: europe/austria/graz Posts: 331	Re: TSL122 and Marshall 2x12 Cab? that's what I wanted to say with my "germenglish" post __________________ WTB: Ibanez AD202 Analog Delay (european version) Marshall JTM622 + JTMc 220 Marshall JTM600 + JTMc 410 Marshall JTM312 + JTMc 112 Marshall 2558 (silver jubilee) for sale

11-09-2008, 12:34 AM	#5 (permalink)
nsureit Junior Member Join Date: Nov 2008 Location: Dallas, TX Posts: 18	Re: TSL122 and Marshall 2x12 Cab? Thank you folks, it works perfectly! I love this forum! __________________ Les Paul Jr. John Lennon Commemorative * '03 LP Supreme * Gretsch 6119-62 TN Rose * American Deluxe Strat HSS * Ibanez EP9 Euphoria Steve Vai Acoustic * Breedlove AC25/SR+ 12 String Acoustic * Epiphone Viola Bass * Marshall JCM2000/TSL 122 * Marshall AS50R Acoustic Amp * VOX AC-15 Mahogany Heritage Ltd Amp * Effects: too numerous to list *

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