Charvel1975
Active member
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
MURDERATOR
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?
edit-do you have the manual?
Last edited:
JackBootedThug
MURDERATOR
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
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
Active member
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?
Attachments
JackBootedThug
MURDERATOR
not sure what that means but hook it up and crank it...you'll be fine...it's a mesa.....
griff10672
Well-known member
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
Well-known member
Use the 8ohm output. It’s fine with Mesas, even states in their manuals.
JackBootedThug
MURDERATOR
you fire it up?
M
MetalThrasher
Well-known member
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.
R
Raysus
Member
Use the 8 ohm output. It won't sound the same as a good impedance match, but it'll still run safely.
Metlupass2
Well-known member
Use the FX send
SQUAREHEAD
Well-known member
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.
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
Well-known member
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
Active member
4
R
Racerxrated
Well-known member
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
8-16 works fine; may perceive more lows/less output
4-16 same as ^^ but more lows and even less output
Charvel1975
Active member
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?
WarHed
Active member
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.