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09-03-2010, 01:41 PM
| | Registered User | | Join Date: Nov 2008 Location: philly | | | Question about Mesa
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I have an M-pulse venture 600 2x10 combo. I want to use the ext. out to power another 1x15. Apparently i cant do that. soo...
1. why not?
2. why does the back of the amp say 2 or 4 ohms?
3 is there anything i can do that doesnt involve spending $400 on 2 new mesa speakers?
This thing is heavey as hell and if i cant figure this nonsense out, I'm going to buy a new amp and trade this **** in.(which i really dont want to do since it sounds AMAZING just want a little more low end) |
09-03-2010, 02:24 PM
|  | Registered User | | Join Date: Jan 2007 Location: SF (North) Bay Area | | | I had a Venture 600 and a Powerhouse 115 that I ran together for years. It sounded killer... do it and don't look back. |
09-03-2010, 02:33 PM
| | Registered User | | Join Date: Nov 2008 Location: philly | | | If i do this though, wont it damage my amp? |
09-03-2010, 02:51 PM
| | Registered User
Vice President, Merchandising KMC/FMIC | | | | you're not telling us why you can't use the extension cab or what the resistance of it is.
If it is an 8ohm cab, you're good to go. If it is 4ohms, Mesa doesn't recommend it.
Here's a link to the manual.....if it helps: http://www.mesaboogie.com/manuals/M-Pulse.pdf
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09-03-2010, 02:57 PM
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Vice President, Merchandising KMC/FMIC | | | | | more info on their site. Apparently, you have a 4ohm combo. So, adding another cabinet will bring it down to where Mesa doesn't recommend.
If you add another 4 ohm cab, you'll be at 2ohms. If you add an 8 ohm cab, you'll have a nominal load of about 3ohms.
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09-03-2010, 03:04 PM
| | Registered User | | Join Date: Nov 2008 Location: philly | | | Yes, my combo is wired for 4ohms. So if i do add an 8ohm cab and make it 3ohms will that damage my amp? |
09-03-2010, 03:23 PM
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Staff Reviewer; Bass Gear Magazine Moderator | | Join Date: May 2004 Location: Columbia MO | | | from the manual, linked above
The M-PULSE provides two 1/4 inch speaker jacks for powering speaker enclosures. The recom-
mended speaker load impedance for the M-PULSE is 4 Ohms at which the mighty SIMUL STATE power section is capable of
delivering a whopping 625 watts RMS before clip and peaks of over 2000 watts! A speaker load of 8
Ohms may also be used though the overall power will be reduced to roughly 300 watts using this rate of
impedance.
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09-03-2010, 03:25 PM
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Staff Reviewer; Bass Gear Magazine Moderator | | Join Date: May 2004 Location: Columbia MO | | | My MPulse 600 *did not* like running below 4 ohms, and got very hot, shutting down on me once at a show.
I personally would not recommend doing that.
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09-03-2010, 03:29 PM
| | Registered User
Vice President, Merchandising KMC/FMIC | | | | Quote:
Originally Posted by Chef  My MPulse 600 *did not* like running below 4 ohms, and got very hot, shutting down on me once at a show.
I personally would not recommend doing that. | yes...the manual says it will run at 2 ohms, but they don't recommend it, due to overheating the components.
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09-03-2010, 03:39 PM
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Staff Reviewer; Bass Gear Magazine Moderator | | Join Date: May 2004 Location: Columbia MO | | I generally don't dog-whip my gear 
I run my Walkabout, M6 and M9 at 2 ohms pretty fequently due to my cabs...the MP6 really did not like that, even not being pushed hard.
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