mark v with a g12-65/c90 mix in a 412???

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skilletbone

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Reading threads about speakers is enough to make my brain twitch.
Im reloading my 412 cab with 8 ohm speakers for best tonal balance, according to the mark v manual. I have 2 new g12-65's to replace my two 16ohm 1265s, that are just broken in. Thats what ive been using, isolated in the top half of the 412,with the mark v. I realy like the 1265s, they just dont have a tight enough bass responce for a fast pick attack in hi-gain applications, otherwise I would load the cab with them. Im looking for a speaker that will complement the 1265s by helping tight things up a bit. Ive read therw not so good in closed back cabs. I also amconcerned about the hi wattage rating with the 90 watt mark v head. Ive tried v30s, i like them but not for me. Any experienced opinions about this speaker mix & setup would be greatly appreciated.
 
Im realy loving the classic rock, mid-gain tones Im getting on channel 2 with 1265s. It took alot of tube rolling to get there. Chanel 2 was almost a deal breaker for me with this amp, a real epic failure with stock tubes, in my oppinion. If I could find the old g12-80's ive been readn about, I would jump on those.
 
Having a rough time with forums with this phone. I meant Im looking at the c90 but have read there not so good in closed cabs & im concerned about the high wattage rating of the c90s in a 412 with the 90 watt mark v head.
 
I think I can help you :

Having all 4 speakers the same in a 4x12 cab imparts a focus and cohesion all its own when they all work "together", instead of the wider frequency response and mismatch of feels a speaker mix would impart.

65s are unique; they are plenty tight, fast and even bright with the right amp (Marshall JCM800 and the like) and mush with others (Rectos and to a lesser extent, the Mark series IMO). The only time I've got them tight sounding with a Mesa was with a Strategy 400 power amp and that thing is a freak of nature, tightness and volume wise.

I have two quads of the G12-80s (with the desirable bass cones, unlike the C90 lead cone version). They are absolutely awesome with Mark series Boogies. Mixing 65s and those 80s didn't sound too hot in the same cab. It was ok when each was in its own cab though.
 
ANNOYING! Cant see what im spelling or erasing. Cant get the curser where I want it. Screen jumping back & forth. And the dreaded page refresh after its almost written, causing me to start all over. Stupid smart phone is going to meet the wall on the feeway. 2 weeks old android, nothing but probs. Glitches, spyware, & locked out of email accounts. Im going to redo the post, hopefully it wont be as jacked up. Sorry!!
 
I realy wanted 4 matching speakers. I was checking out the g12-80's,wich led me to the c90, but read nothing about the bass cones. Do they come stock with that cone?
 
skilletbone":2ku5a3to said:
I realy wanted 4 matching speakers. I was checking out the g12-80's,wich led me to the c90, but read nothing about the bass cones. Do they come stock with that cone?

They came stock with bass and lead cone (still a bit different and better than newer ones) versions for their production lifespan (1979-1983). Any later revision has the lead cone (Classic Lead 80s, Celestion Century, C90). Most if not all agree the bass cone ones are much better.
 
Those are what I was looking for, but they seem hard to get.
 
Thank you for the tip, im going to search them out. It will test my patients. Im in ball deep, with nos tubes & all the gear ive rolled in the last few years. Im that close to a killer setup to quit now. I was aware of the early g12-80's, just wasnt sure if you were speaking of something readily available. I just walked in from work & the 1265 that came in the mail yesterday was still in the box. I bought 2 on ebay for 100 each. 1 doesnt even have solder on it. Ill have too test them before passing them on. I just know I just wont settle til I find what I want & trying to repair a short coming of one speaker with another speaker is trying to find a happy medium. The hunt continues. In the meantime ill enjoy the squishy feeling I get from playing with 1265s ive been using.
 
I dig a set of ET65's. C90's seem to have just a little more of everything because of the bigger magnet. I think large dust cap speakers work best with 6L6's.

I think the stock JJ preamp tubes are a great choice for this amp. They stay well behaved and are balanced.

Do you play with a band? This amp really comes alive at a live volume so much so that it responds and sounds different than at a bedroom volume. I think the Crunch channel is great, and is meaty. But we might be going for different tones. I think this amp has all' the gain and distortion I need, and I could play a lot of songs in the Crunch channel alone. The Edge mode is a good Vox tone as well. Think "Last Dance With Mary Jane" from Tom Petty.

I think the trick to this amp is balancing the volumes between channels with the highest gain tones just slightly louder than the lower gains. I say this because more gain is less articulate, and lower gain is more dynamic. Moreover, a lower gain channel that's louder will make a higher gain channel sound weak and mushy when in reality the high gain tone has more frequency content especially with the graphic eq. I only use the graphic on channel 3. The other channels are period correct, and weren't designed with a GEQ.
 
skilletbone":1w5293ix said:
Im realy loving the classic rock, mid-gain tones Im getting on channel 2 with 1265s. It took alot of tube rolling to get there. Chanel 2 was almost a deal breaker for me with this amp, a real epic failure with stock tubes, in my oppinion. If I could find the old g12-80's ive been readn about, I would jump on those.

what tubes did you settle on?
 
Is there a way to ID the bass cones ? A T number or part number or something ?
 
paulyc":12hoqzsz said:
Is there a way to ID the bass cones ? A T number or part number or something ?

T3351 = 55 hz bass cone, 8 ohm
T3055 = 75 hz lead cone, 8 ohm
T3056 = 75 hz lead cone, 15 ohm
T3103 = 55 hz bass cone, 15 ohm
T2871 = 55 hz bass cone, 8 ohm (same as the T3351 to my knowledge. Could be a variation, not sure. Some of these have
Marshall labels instead of the silver G12-80 sticker. Others have regular silver labels)
T2876 = 55 hz bass cone, 15 ohm (same deal as above, 15 ohm version)
 
paulyc":8fzucikz said:
Is there a way to ID the bass cones ? A T number or part number or something ?
I see the 4444 cone, seems to be the ticket, I think. Ive been scouring the net. I learmed, real quick,to avoid the term vintage" when looking for celestions. Vintage 30's forever.
 
yeti":1m8pqgbk said:
skilletbone":1m8pqgbk said:
Im realy loving the classic rock, mid-gain tones Im getting on channel 2 with 1265s. It took alot of tube rolling to get there. Chanel 2 was almost a deal breaker for me with this amp, a real epic failure with stock tubes, in my oppinion. If I could find the old g12-80's ive been readn about, I would jump on those.

what tubes did you settle on?
I already had alot of new prod preamp tubes from rolling power amps & modules in a egnater m4 I had, and should have kept, longgggg story. The 2:90 has 8 sed 6l6's in it & I have a brand new quad of them for spares. I bought a set of sed el34's. But either are fim
 
yeti":lcq8s63w said:
skilletbone":lcq8s63w said:
Im realy loving the classic rock, mid-gain tones Im getting on channel 2 with 1265s. It took alot of tube rolling to get there. Chanel 2 was almost a deal breaker for me with this amp, a real epic failure with stock tubes, in my oppinion. If I could find the old g12-80's ive been readn about, I would jump on those.

what tubes did you settle on?
I already had a new quad of sed 6l6's for spare for my 2:90 & I bought a quad of sed el34s. Im not going to rave one over the other. The el34s help a bit with channel 2, but wasnt a fix. Preamp tubes is more subjective, but other than tubes known to be noisy, wich still do the trick, any good military grade nos tube seems to do the job, even if you just go with v1 & v7, those two tubes seem to make the biggest diff. You have to pick a few different ones. Rca, mullard or blackburn factory produced, jan phillips, amperex, sylvania. An easy pick is a jan phillips 5751, I had it in rhe pi & v1, much better, I have the one I have in v6 to warm up effects return & extreme is hard to f up
 
midnightlaundry":1sen5mey said:
I dig a set of ET65's. C90's seem to have just a little more of everything because of the bigger magnet. I think large dust cap speakers work best with 6L6's.

I think the stock JJ preamp tubes are a great choice for this amp. They stay well behaved and are balanced.

Do you play with a band? This amp really comes alive at a live volume so much so that it responds and sounds different than at a bedroom volume. I think the Crunch channel is great, and is meaty. But we might be going for different tones. I think this amp has all' the gain and distortion I need, and I could play a lot of songs in the Crunch channel alone. The Edge mode is a good Vox tone as well. Think "Last Dance With Mary Jane" from Tom Petty.

I think the trick to this amp is balancing the volumes between channels with the highest gain tones just slightly louder than the lower gains. I say this because more gain is less articulate, and lower gain is more dynamic. Moreover, a lower gain channel that's louder will make a higher gain channel sound weak and mushy when in reality the high gain tone has more frequency content especially with the graphic eq. I only use the graphic on channel 3. The other channels are period correct, and weren't designed with a GEQ.
I havent been in a band in couple years, disolved a buisiness, divorced, 5 close family deaths and a badly broken foot
is my excuse. I live in Harlem woods, I mean Harper Woods MI, and the ghetto is closing with astonishing speed. So I dont turn up my amp too loud, had a break in 3 houses away last summer. But, I do crank it for short periods. A band situation is what I love most about playing guitar & whay this rig is being built for. Although I have other gear that will get the job done. Im digging the edge, actualy I like every mode, now. But the crunch channel is where ill live on channel 2. I have gains set from noon to 2:00.
I also only use the graghic on channel 3. I probably can throw the stock pwr amp tubes in, now, and be happy. It doesnt seam that were probably to far off in taste. I realy need to put 6l6's back in and take it somewhere I xan realy open it up to see how these speakers do.
 
skilletbone":110a1pcu said:
midnightlaundry":110a1pcu said:
I dig a set of ET65's. C90's seem to have just a little more of everything because of the bigger magnet. I think large dust cap speakers work best with 6L6's.

I think the stock JJ preamp tubes are a great choice for this amp. They stay well behaved and are balanced.

Do you play with a band? This amp really comes alive at a live volume so much so that it responds and sounds different than at a bedroom volume. I think the Crunch channel is great, and is meaty. But we might be going for different tones. I think this amp has all' the gain and distortion I need, and I could play a lot of songs in the Crunch channel alone. The Edge mode is a good Vox tone as well. Think "Last Dance With Mary Jane" from Tom Petty.

I think the trick to this amp is balancing the volumes between channels with the highest gain tones just slightly louder than the lower gains. I say this because more gain is less articulate, and lower gain is more dynamic. Moreover, a lower gain channel that's louder will make a higher gain channel sound weak and mushy when in reality the high gain tone has more frequency content especially with the graphic eq. I only use the graphic on channel 3. The other channels are period correct, and weren't designed with a GEQ.
I havent been in a band in couple years, disolved a buisiness, divorced, 5 close family deaths and a badly broken foot
is my excuse. I live in Harlem woods, I mean Harper Woods MI, and the ghetto is closing with astonishing speed. So I dont turn up my amp too loud, had a break in 3 houses away last summer. But, I do crank it for short periods. A band situation is what I love most about playing guitar & whay this rig is being built for. Although I have other gear that will get the job done. Im digging the edge, actualy I like every mode, now. But the crunch channel is where ill live on channel 2. I have gains set from noon to 2:00.
I also only use the graghic on channel 3. I probably can throw the stock pwr amp tubes in, now, and be happy. It doesnt seam that were probably to far off in taste. I realy need to put 6l6's back in and take it somewhere I xan realy open it up to see how these speakers do.
those g12-80s are going to be tough to come by, maybe someday. I might not give up on the 65s. The wgs is getting pretty good reviews from some worthy sources on this forum. Realy the 6l6s help tighten things up, just a tad more is all .thwy need & live volume levels might be what they need. I also dont mimd a little fight back from my gear. My old tele needs a new neck bad, Ive worn them frets out, but I can still wheeze the juice from that ol' battle axe.
 
Got a chance to open it up & its still too spoungy. I put the 6l6's back in & Im back on board with a quad of 1265's. I did find out when I switched on extreme theres a significant loss of gain & volume, so I pulled the 5751 in v6. The el34's would be great with different spkrs. I already found and ordered 2 more 8ohm g12-65's.
 
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