Search found 934 matches

by igfraso
Sun Aug 06, 2017 1:59 pm
Forum: Mark Series
Topic: MKIVB Versions: Detachable Power Chord
Replies: 3
Views: 1668

Re: MKIVB Versions: Detachable Power Chord

I thought that all full B had a detachable cord so I would have said from Dec 93 on. But you have seen newer amps with the cord still attached.
by igfraso
Fri Aug 04, 2017 10:40 am
Forum: Mark Series
Topic: MKIVB Versions: Detachable Power Chord
Replies: 3
Views: 1668

Re: MKIVB Versions: Detachable Power Chord

Not for certain but just for info... the transition between the MkIV-A and the early B version (or noA/noB) seems to have happened around the lower s/n 5800's.

In the forum, there is someone with an early B s/n 585X (Dec 92? or Jan 93?) and another one with a full B s/n 689X (Dec 93).
by igfraso
Wed Aug 02, 2017 9:13 am
Forum: Vintage Amps (Before 1991)
Topic: How different are IIB's as opposed to IIA's
Replies: 6
Views: 2705

Re: How different are IIB's as opposed to IIA's

Regarding the MkIIB, the setting indicated in the manual is based on what they called the "typical 7-2 setting":

Vol1: 7
Treb: 7
Bass: 2
Mid: 2
Mast1: 2
LD: 8
LM: 2
Pres:
Rev:
EQ: out
by igfraso
Wed Aug 02, 2017 8:50 am
Forum: Vintage Amps (Before 1991)
Topic: How different are IIB's as opposed to IIA's
Replies: 6
Views: 2705

Re: How different are IIB's as opposed to IIA's

Snottyboy: there is little information about the MkIIA so I am sharing here below some settings taken from the MarkIIA manual (the first two) and two others posted in this forum. 1) Good basic setting Vol1: 4 Treb: 9 Bass: 3 Mid: 3 Mast1: 2 LD: 7 LM: 1 Pres: 7 Rev: 4 EQ: out 2) Good basic setting, a...
by igfraso
Fri Jul 28, 2017 2:45 pm
Forum: Vintage Amps (Before 1991)
Topic: How different are IIB's as opposed to IIA's
Replies: 6
Views: 2705

Re: How different are IIB's as opposed to IIA's

FWIW, Mike Bendinelli told me some years ago that the MkIIA has a very unique sound within the Mark series and it is great with 335 guitars. Mike also said it is kind of a hot-rod Tweed Bassman and that the clean channel was their highest achievement at that time while the search for the lead channe...
by igfraso
Sun Jul 23, 2017 10:36 pm
Forum: Mark Series
Topic: mark 3 serial numbers
Replies: 85
Views: 21660

Re: mark 3 serial numbers

Thank you for the picture s-fresh.

Obviously, the factory stamped the A in front of the already stamped serial number.
Both "twin-numbered" amps should be perfectly fine and as similar/slightly different as any other two amplifiers.
by igfraso
Thu Jul 20, 2017 1:32 pm
Forum: Mark Series
Topic: mark 3 serial numbers
Replies: 85
Views: 21660

Re: mark 3 serial numbers

According to what I read somewhere here in this forum, if and when Mesa found two chassis with same serial numbers (some of them were stamped in advance during manufacturing and some others at the time of manufacturing completion), they did not restamp the chassis but preferred to stamp an additiona...
by igfraso
Sun Jun 11, 2017 12:02 pm
Forum: Vintage Amps (Before 1991)
Topic: mark IV power loss
Replies: 16
Views: 6882

Re: mark IV power loss

A bad phase inverter or possible the master volume pot. Most likely, the PI. When you turn the amp off it kills the voltage to the tubes and it may come back to life after the recycling of the power. A good pot cleaning would not be a bad idea anyway. They get dirty and scratchy after only a few ye...
by igfraso
Fri May 19, 2017 3:32 pm
Forum: Vintage Amps (Before 1991)
Topic: Opinions on STR-425 5881 tone?
Replies: 1
Views: 1174

Re: Opinions on STR-425 5881 tone?

For what I understand they are a little bit bassy and good for jazz.
When I asked Mike Bendinelli if I could use them in a Mark II-A, he said better not because the II-A was already a dark amplifier.
by igfraso
Sat May 13, 2017 4:51 pm
Forum: Vintage Amps (Before 1991)
Topic: MKII Glitches?
Replies: 11
Views: 3724

Re: MKII Glitches?

Zlofengir wrote: Did Mike say why this setting was better for the Mk II's Daniel?
Zlofengir, I think he was referring to the clean sound.
by igfraso
Fri May 12, 2017 8:58 am
Forum: Mark Series
Topic: Mark IIA vs. Mark IIB, Which Do You Prefer?
Replies: 3
Views: 1772

Re: Mark IIA vs. Mark IIB, Which Do You Prefer?

Mike Bendinelli says that the II-A has a sound that is very unique within the Mark series. I think he was referring to the clean sound.
by igfraso
Fri May 12, 2017 8:55 am
Forum: Mark Series
Topic: Mark 3 series.
Replies: 7
Views: 2888

Re: Mark 3 series.

Thanks for the link; it was helpful. The days when they only made one amp, in Randall's garage were the great years. Amps are always chasing sounds that are really created by the players fingers and nuance with his guitar. Santana sounds like Santana on any amp; Hendrix was the same, although he ha...
by igfraso
Thu Apr 13, 2017 9:34 am
Forum: Vintage Amps (Before 1991)
Topic: Boogie early history & more
Replies: 25
Views: 8801

Re: Boogie early history & more

Chip: as you were correctly saying. This is a Mark IIC preamp block diagram I copied from one of Mesa's old brochures. Probably a IIC+ since the effects loop appears to be after the Lead mode circuit. Lead mode has a First Gain (Input) - Tone (and Treble shift)/Volume1 - Gain makeup - Lead Drive vol...
by igfraso
Sun Apr 09, 2017 12:29 pm
Forum: Mark Series
Topic: mark 3 serial numbers
Replies: 85
Views: 21660

Re: mark 3 serial numbers

What date is your purple stripe #16750?
Thank you
by igfraso
Mon Apr 03, 2017 11:55 am
Forum: Vintage Amps (Before 1991)
Topic: Stock Mark III 60 watt with 2 EL34's?? No Stripe
Replies: 2
Views: 1339

Re: Stock Mark III 60 watt with 2 EL34's?? No Stripe - HELP

I don't think so but Mike Bendinelli can easily do that for you.
What is what you are looking for tone-wise?