|
Post by dongiesen on Jan 20, 2007 12:32:26 GMT -7
I recently scored a ZBest 212 while in So Cal. Have a Gia head and a 18jr 210 combo. Want to put the 18jr into a Head cab and use the existing cab for a 210 speaker cab. I realize that the head you buy would put the combo face plate upside down if mounted in the bottom of the head cab but aside from that I remember reading about this somewhere on the site but now can't find it even after reviewing my own post record. Anyway I remember someone turned a combo cab to a speaker cab but never mentioned what they housed the amp in. I also seem to recall someone mentioning that Z on occasion has blem cabs. Remembering this I sent an email to the plant but got no response though I asked for a yea or nay as an acknowledgement of receipt. Anyone have any thoughts on this as another alterative to solve the problem?
|
|
|
Post by mward on Jan 21, 2007 9:39:33 GMT -7
I just build a cab for whatever I'm trying to do so I can get things mounted properly. Maybe you could look into having something custom built?
|
|
|
Post by buddachile on Jan 22, 2007 13:41:31 GMT -7
Perhaps the solution is as simple as ordering a Z28 head cab from Dr Z. I noticed Z28 heads with the chassis mounted on top so I figure it is possible the Maz Jr combo chassis will fit in the Z28 head cab.
I'm interested in how you end up getting your combo chassis in a head cab so please let us know.
|
|
|
Post by dongiesen on Jan 22, 2007 21:40:25 GMT -7
I'm thinking if I either get or build a head cab, I'll top mount the amp and reverse the grill cloth face from top down to bottom up. Luckily I'ver been an upholsterer all my life so one way or the other I'll figure out how to make it work. Does anyone know a supplier of tolex, metal corners, feet, handles, etc. I remember being on a site once that had that kind of stuff but don't remember where and when
|
|
|
Post by JASON (aka jgleaton) on Jan 22, 2007 22:11:01 GMT -7
Perhaps the solution is as simple as ordering a Z28 head cab from Dr Z. I noticed Z28 heads with the chassis mounted on top so I figure it is possible the Maz Jr combo chassis will fit in the Z28 head cab. I'm interested in how you end up getting your combo chassis in a head cab so please let us know. I'm almost positive the Ghia and the Z-28 are interchangable whether head or combo... BUT it's the main Screws spacing that is in the wrong place for the bigger size heads/ combo's like the Maz Jr is in... a few inches off. you could swap the Jr for a Sr or RX etc.... size cab. I've seen a couple of custom cabs done like that for DR Z's combo's and they are real cool looking if done right... one was a Bob Burt head cab for a Z combo in natural wood and the Z logo in black. I'd go with something like that and you could probably get someone to do it for a couple hundred bucks I would think... I've been thinking about doing something like that for my Maz Jr 2x10 combo just to be able to also use it as a head...
|
|
|
Post by mward on Jan 23, 2007 4:51:34 GMT -7
I'm thinking if I either get or build a head cab, I'll top mount the amp and reverse the grill cloth face from top down to bottom up. Luckily I'ver been an upholsterer all my life so one way or the other I'll figure out how to make it work. Does anyone know a supplier of tolex, metal corners, feet, handles, etc. I remember being on a site once that had that kind of stuff but don't remember where and when www.ampwares.com/www.vibroworld.com/
|
|
|
Post by dongiesen on Jan 23, 2007 19:22:38 GMT -7
I'll have to measure my Gia head and make a comparison. Got a return email from Brent at Dr Z today and says none are available at this time. My 18 is lent out to a friend at the moment but I do have the 18 head measurements from the Z web site so I imagine if I do end up building one I'll stay true to the size. It will be a while as It's not a life or death issue and Z could possibly still come through if I'm patient. Besides I still don't have a line on a parts supplier for handles,corners,tolex, etc. Hoping someone will chime in on that one.
|
|
|
Post by dongiesen on Jan 23, 2007 19:26:17 GMT -7
Thanks MWard for the 2 site ID's. Just noticed them. Very appreciated.
|
|
|
Post by JASON (aka jgleaton) on Jan 23, 2007 21:13:54 GMT -7
I'll have to measure my Gia head and make a comparison. Got a return email from Brent at Dr Z today and says none are available at this time. My 18 is lent out to a friend at the moment but I do have the 18 head measurements from the Z web site so I imagine if I do end up building one I'll stay true to the size. Something else to think about when I considered making myself one, might run a little hotter if you build a head and can't put a vent on top like the other larger headcabs, due to the amp chasis bottom being on top... might leave some openings/holes in the wood of the front panel only covered by grille clothe ( like the Route 66's/ delta 88's have ) to get a little air flow and also maybe add a fan like alot of the 4 EL-84 combos just to keep her running a little cooler with the tubes hanging down and a smaller space.... something I thought about for mine, thought maybe you should consider this just in case you build one for yourself? Jason
|
|
|
Post by dongiesen on Jan 23, 2007 22:03:39 GMT -7
Good thoughts J. My rough concept in my head says duplicate the construction quality and shapes of the box, the vented front grill, and the same shaped partial back but using the maz 18 head measurements for the scale of the box. I also notice that my Gia is mounted to the top of the head cab and would imagine a similar amount of heat as the 2 EL84 and a rectifier common to them is probably the biggest heat factor. Would guess the trannies are probably quite similar in size. Would be a job. That's for sure
|
|
|
Post by JASON (aka jgleaton) on Jan 23, 2007 22:15:21 GMT -7
Good thoughts J. My rough concept in my head says duplicate the construction quality and shapes of the box, the vented front grill, and the same shaped partial back but using the maz 18 head measurements for the scale of the box. I also notice that my Gia is mounted to the top of the head cab and would imagine a similar amount of heat as the 2 EL84 and a rectifier common to them is probably the biggest heat factor. Would guess the trannies are probably quite similar in size. Would be a job. That's for sure YEP, I was thinking basically the same thing, make a DR Z head box but just upside down... I think the Jr runs a bit hotter than the Ghia with twice as many more 12ax7's and a hotter running GZ-34 rectifier... plus it's all in there pretty close together... I think the Ghia just has fewer tubes, more space and is so overbuilt that it just doesn't run quite as hot... but thats just my observation of the 2 combos I have YMMV... I'd put a fan in there too If I built one for myself and was gonna run her all night long... I wonder if the master volume or the circuit would contibute to it running a little hotter? I think it was Ken fisher that liked to build his EL-84 amps only in head versions with the tubes up to help disipate the heat?
|
|
|
Post by mward on Jan 24, 2007 4:41:05 GMT -7
The Route66 only has the vent holes under the grillcloth in the front on the ones that don't have those nice hardwood faces. I imagine if it made a real difference the doc wouldn't make em with the hardwood front? I've been tempted to make a swanky figured wood front for mine and have a friend of mine inlay a Z in abalone on it.
|
|
|
Post by JASON (aka jgleaton) on Jan 24, 2007 14:00:53 GMT -7
The Route66 only has the vent holes under the grillcloth in the front on the ones that don't have those nice hardwood faces. I imagine if it made a real difference the doc wouldn't make em with the hardwood front? I've been tempted to make a swanky figured wood front for mine and have a friend of mine inlay a Z in abalone on it. Well.... your right. I didn't think about the hard wood front head versions of the Rt 66 and the Delta... But the Route 66/ delta are head only with the tubes sitting upright and vented out the top so maybe thats why? and they are A/B and maybe not running quite as hot as a cathode biased wide open "close to" class A amp such as the el-84's are?? Then again maybe it's just not such a big deal with the oversized transformers/ overbuilt quality... I do tend to worry about alot of little things that in the grand scheme of things probably aren't a big deal... mountain out of a mole hill? and No comments from you Shannon... just shut up, cause I know what your thinking...
|
|
|
Post by mward on Jan 25, 2007 5:31:43 GMT -7
I know I'm about to compare a yugo to a bentley here but... My epi valve junior is class a one el84 tube and the vent is tiny and it seems to do okay. I would say as long as the back of the cab is open and you can get some air in there you'd be okay.
|
|