16 Ohm 4x12 Cab Connection To Boogie Mark V Head 90 Watt Head

[Charvel1975]

Hello all What speaker output on the Boogie Mark V 90 Watt head do you use to connect to a 16 Ohm 4x12 Cabinet?

 

[JackBootedThug]

any of them would work I assume. If there's no 16 then go with an 8 ohm out. usually it's safe to run mismatched ohms with them. someone please correct me if I'm wrong. I have not had one for years until a few days ago.

edit-do you have the manual?

 

[JackBootedThug]

nevermind-page 43--

Two 4 Ohm and two 8 Ohm jacks are provided for speaker interfacing. The MARK V is not very sensitive to speaker mismatches and will not be damaged by them, except that very low ohmage loads will cause the power tubes to wear faster

 

[Charvel1975]

nevermind-page 43--

Two 4 Ohm and two 8 Ohm jacks are provided for speaker interfacing. The MARK V is not very sensitive to speaker mismatches and will not be damaged by them, except that very low ohmage loads will cause the power tubes to wear faster

Yea that's what I saw in the manual too and it didn't specifically say whether a 16 Ohm cab could be hooked up and the 2 - 8 ohm jacks say Combo? What does that mean, it doesn't even say anything about that in the manual?

 

[JackBootedThug]

not sure what that means but hook it up and crank it...you'll be fine...it's a mesa.....

 

[griff10672]

Yea that's what I saw in the manual too and it didn't specifically say whether a 16 Ohm cab could be hooked up and the 2 - 8 ohm jacks say Combo? What does that mean, it doesn't even say anything about that in the manual?

if you were hooking up 2 16 Ohm cabs you would use the two 8 Ohm jacks ... if you were running 2 8Ohm cabs you would use the 2 4 Ohm jacks ...
Boogie manual says it's perfectly safe to mismatch cabs .... and actually suggests you try it to see if you like the difference

you can try either one .... 4 or 8 .... see which one sounds / feels best

 

[Spaceboy]

Use the 8ohm output. It’s fine with Mesas, even states in their manuals.

 

[JackBootedThug]

you fire it up?

 

[MetalThrasher]

Use the 8 ohm. Like said above the Mesa ratings are strange but for a 4x12 cab use the 8 OHM input for the cabinet.

 

[Raysus]

Use the 8 ohm output. It won't sound the same as a good impedance match, but it'll still run safely.

 

[Metlupass2]

Use the FX send

 

[SQUAREHEAD]

Sorry if my question is stupid but, why did Mesa not have a 16ohm speaker output?

Obviously, it’s safe to run an amplifier set at 8 ohms into a 16 ohm cabinet, but it’s not gonna sound as good as 16 to 16.

 

[thegame]

Sorry if my question is stupid but, why did Mesa not have a 16ohm speaker output?

Obviously, it’s safe to run an amplifier set at 8 ohms into a 16 ohm cabinet, but it’s not gonna sound as good as 16 to 16.

The transformers in most, if not all, Mesa amps simply don't have a 16 ohm tap. Since Mesa's origins were based on hot rodded vintage Fender amps, they stuck with that Fender blueprint of 2, 4, or 8 ohm outputs.

 

[Dopethrone]

4

 

[Racerxrated]

16-16 is optimal
8-16 works fine; may perceive more lows/less output
4-16 same as ^^ but more lows and even less output

 

[Charvel1975]

Well last night my other guitarist and I turned on the Boogie mark V he got through the Harley Benton G412A cab with Celestion Vintage 30's he got too and tried his Ibanez Steve Vai Woody guitar & Ibanez JEM70V Steve Vai Signature - Sea Foam Green and my Charvel model 5fx through it and it took quite some time to get it sounding somewhat ok and there is just this honky sound going on, don't know what it is?

you fire it up?

 

[WarHed]

Sorry if my question is stupid but, why did Mesa not have a 16ohm speaker output?

Accountants.
The 16 ohm winding on the transformer requires the most wire. This makes the wire cost go up, and usually the former cost go up as it needs to be bigger to fit the extra wire.