drewm

Armed with switch cleaner, I went to open up my Trace Elliot combo to get inside and clean my crackling pots. But I can't figure out how to get the amp head out. There's no screws or anything on the front or rear face. All I can find are what looks like screw covers on the top (see photo) - but they're pretty well stuck down, and I don't want to make a mess of them if they're not the right access point. It's going to be hard to do neatly. Anyone have any ideas? [attachment=49196:te_front.jpg] [attachment=49197:te_top.jpg]

[quote name='obbm' post='709899' date='Jan 12 2010, 12:42 PM']Whichever way I would say it's a 715S, 200-watt into 4-ohms.[/quote] Brilliant. Thanks for all the help!

[quote name='obbm' post='709772' date='Jan 12 2010, 10:19 AM']According to one of my old catalogues the bottom head is an [b]AH2007S[/b] i.e an AH200 with the GP7 pre-amp The 1 x15 combo with that same amp is the 7215[/quote] Ah, thanks for this - but my combo is narrower than the one in your scan. It doesn't have the extra vent spacer panels either side of the preamp. But, that said, it's likely that whatever mine is, it's going to be around the same spec. I'd always had it in my head that this was a 400W amp - although thinking about it, that doesn't make much sense for something this size. I was 15 when I bought it, so that could easily be down to me misunderstanding at the time. If it [i]is[/i] 200W RMS, then it's possible that the sales person quoted me 400W [i]peak[/i] to make it sound more impressive. He also told me that it had be played by Mike Mills of R.E.M. so I think it's a reasonable assumption that the guy was a bit of a wheeler-dealer. ;-) But, most interesting of all, this means that my point of reference for how loud bass amps are has just changed. If what I thought was a 400W amp is actually 200W, then a replacement rig just got a lot cheaper! :-)

This isn't my amp - just a photo I found via Google Image Search. The top amp is what the owner's manual describes as being a Series 6 GP7. The bottom amp is like the one in my combo - note the addition of the DI output. I'm guessing the Series 6 range was revised at some point, but the TE site doesn't have the revised specs.

[quote name='Merton' post='709687' date='Jan 12 2010, 07:44 AM']I have a funny feeling the Series 6 715 had two speaker outputs anyway...[/quote] That sounds completely logical to me (this was relatively high-end for a combo at the time) but the Series 6 owners manual says: [quote]You can also add a 4052H to a combo amplifier to extend the high frequency response by connecting the Jack to Jack speaker lead to the Combo extension speaker output, ([b]N.B. excluding the 715 Combo which has no extension speaker output.[/b])[/quote] My amp has two outputs - one which the internal speaker plugs into and one spare. And whilst looking for that, I just spotted this: [quote]GP7 - All specifications are identical to those for the GP12 Pre-Amp except for the Equalisation:- +/- 15dB at 7 centre frequencies. [b]The GP7 has no DI output.[/b][/quote] This amp is clearly Series 6, so I have the correct owner manual. It's also very clearly a GP7 (both these are printed on the front panel). But this amp has an XLR DI output section on the front, so again doesn't match the spec in the manual. I'm pretty sure it's the same width, but I'll do some measuring and try and take some photos today.

[quote name='Jambo' post='709626' date='Jan 12 2010, 12:18 AM']on the front does it say anything - "series 6" How many band is the EQ? is it vinyl or carpet covered? does the front of the cab have red stripes on it?[/quote] Yes, as I mentioned, it's a Series 6 GP7 - so 7-band EQ. Vinyl covered, metal grill, no red stripes, and none of those funny sound ports. It basically looks like like a Series 6 715 should, but with an extra output and I'm sure it's more than 100W.