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Stub Mandrel

⭐Supporting Member⭐
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Everything posted by Stub Mandrel

  1. Rock won't die, it will just evolve and absorb. The 'Rock and Roll Hall of Fame' has got rappers in it, by 2030 there will be Grime and Drill artists there as well... By 3019 it won't be odd to class Hendrix and McCartney with Vivaldi and Bach.
  2. I've just got one of these! For less than the going rate for the four speakers (Eminence Alpha 10A) s/h! It's the early version which hasn't got a visible heatsink at the back; instead it's got the larger cutout and L-shape back panel. It was making a bit of a rattle I worried was a damaged voice coil but it disappeared when I took the front grill off - obviously a bit of TLC should cure this. I have some questions: There are no jack sockets in the holes on the back panel, just rubber grommets. I assume I could add one or two (with B wired to disconnect the internal speakers) for an external cab but I don't know the impedance of the speakers or how they are wired. I'd rather not disconnect them and risk getting polarities wrong etc. The speaker fuse is just 3.15A; this seems ridiculously low unless the speakers are 16R (would give about 150 watts) which seems high. If used with the apparently appropriate 4 ohm speakers that would be right for about 30 watts - surely not! Out of curiosity how powerful is this amp likely to be (with gain and volume at 12 o'clock you can feel the air blast two feet away, so this is a bit of an academic question - whatever the power it's LOUD) What does the EC1 LED signify? It doesn't seem to be power amp clip? Is there any benefit in using the balanced input with a bass? Looking at the wiring diagram for a later version of the GP11 (I think, it has three level LEDs at the business end) it appears that teh slave send and return can be used for a 'post-eq' effects loop is that correct? The model name appears to be 1110 Combo does this tell me anything useful? Finally, has anyone got a link to a manual?
  3. Fair enough, but maybe the 80s was when that innovation and diversity spread beyond a small core of big makers at both ends of the market.
  4. I think the weight is exaggerated a bit, plus they have decent handles! I might add some castors though. It's nothing compared to the 1x18 cab I had years ago.
  5. Funnily enough he had brought a mate to help him carry it. I picked it straight up, carried it to the car and popped it in, while his mate made a suitable comment 🙂 It ain't being strong, it's knowing how to lift... Old guys rule 😎
  6. Just picked up a Trace Elliot GP11 V5 4x10 combo for £130 🙂
  7. During the gig it went back and forth between elation and terror! The high point for me was everyone clapping along to Crazy Little Thing Called Love .. it was when I realised people were actually enjoying the music rather than just enjoying the event.
  8. Lots of 'real' rics on eBay it seems. Most look a bit healthier!
  9. https://en.wikipedia.org/wiki/Three-Day_Week I thought thos days were gone, but it's not hard to believe such a thing could happen again now!
  10. 🤣 It's an early one, the actual power seems a matter of speculation but not huge - I've seen both 150 watts and 200 watts quoted. I've also seen lots of comments that TE were 'conservative' in their power estimates...
  11. It ain't falling through! :-0
  12. I remember the three-day week... and I'm not even old!
  13. Things have just got more complicated! I just won this for £131 on eBay: TRACE ELLIOT GP11 MK V Graphic Preamplifier 4x10" Bass Combo Amp. Pickup only, but it's only about 25 miles away. But my understanding is that the 4x10 is 8R and I can add another 8R cab...
  14. That's when 'new' designs started to come through, before then you had the choice of dated 'violin' style basses, SG type ones or Fenders. Suddenly you had a how load of more adventurous designs and features.
  15. This thread has piqued* my interest! I have a Laney Pro-Bass head from the early 80s, one of the very early ones that doesn't even have a power output marked on it (s/n 1601, very crudely scratched on it!) It's a shameless rip-off of a Trace Elliot with overload LEDs, pre-shape, parametric EQ, 11-band EQ, cheesy compressor (it's worst feature), pre-post FX loops, DI and extra FX loop on the power amp. I actually like the sound and it's immense flexibility this gives, but it needs to be dialled for 'pub gig' volumes and then it become easy for things to get 'farty' - it hasn't really got enough headroom. I'm looking at getting/making a more efficient 300W 1x12 cab to replace one of my two guitar-oriented 2x12 120W cabs. Now this thread has me wondering about ripping out (carefully removing and putting in a safe place) the Laney power amp and PSU, and fitting a SMPSU and a 300 to 500W D-class module with fan cooling (because it's in a big 3/4" ply box). Any thoughts on suitable modules - I assume the ones on eBay for about £17 are not the ideal solution, but at what price point do they become robust and reliable? *Actually I was just looking for an excuse to use the most miss-spelled word on the whole internet!
  16. Dare I mention 6-strings? I have an 80s Korean Tele with a plywood (but nicely finished) body and good neck (and a stacked DiMarzio by the bridge 👿) I'm tempted to buy one of these and have a go at veneering it, £55 off the 'bay:
  17. Grown ups can decide if they want to buy fire-salvage or not! I thought his 'Hendrix' comment was quite funny 🙂 Plus I thought this topic was for 'weird' as well as wonderful...
  18. Thanks! WinICD is sucking my brain out at the moment. In simple terms my problem is it sounds like I'm playing through guitar speakers unless I push the 40, 80 & 120 Hz sliders up to +6dB. Extended bass will give me more headroom for normal playing and the option to turn up if I need to, as I only have a 150W (it may even be 100W the power isn't actually written on it...) I've found these 12" MCM speakers, fairly cheap at CPC (about (£10 less than the Eminence Beta 12😞 This graph shows my current setup - Red, two MCM drivers in green, and one MCM in orange. All in the same size cabinet. This suggests a single MCM 12" in a 67 litre cabinet would work best for me. (For comparison the Eminence Beta 12 is 3dB down on the MCM from 40 to 60Hz). For a single driver excursion is under the red line down to 30Hz @ 150W. I realise that for these traces to be comparable they all need to be for the same nominal impedance. The appeal is I could test this by fitting an 8R one instead of two 16R mackenzies and blocking the hole, if that works. If these traces are accurate my aim of being able to 'flatten' the EQ curve and get more headroom should be achieved? If it works really well, I could get another driver and permanently convert the 'twin mac'.
  19. It's possible to fight these strange urges... 🙂
  20. Inspired by seeing and reading about some really good single 12 bass cabs, I've been looking at how to address the shortcomings of my own setup. Currently I have a 2x12 Pheonix guitar cab with two Celestions in it, probably 70s greenbacks but I haven't seen them for 30 years and its a lot of screws... I have a homebuilt 2x12 with two Mackenzie twin-cone PA speakers in it. Adding two modest ports to this has made it a bit bassier than the Phoenix but not as solid as I want. It's 3dB down at about 65Hz, assuming the Mckenzie 12 TCs of ~1980 are broadly similar to the Mackenzie MK Studio 12 100TC of today... I suspect that they are not as good as this! My thought is to make an 8R 1x12 cab to use with the 'twin mac' where in the past a big 15" cab would probably have been used.This means I don't need something with an extended response beyond 3KHz. I'm happier to bigger than 50 litres, and something about 700 x 550 x 300 would be about 85 litres and give a solid platform for the twin mac and with only one driver it will weight about the same. I've found this well specced driver for less than £50 on CPC: This are various experiments in WinISD, the dark line is the above driver - the benefit of using the equivalent 15" is questionable. (It knocks the spots off the slightly more expensive Eminence Beta 12A for this enclosure): At 150W (more than my amp will put into 8R) the max excursion at 31Hz is = to Xmax of 8mm. The 'power dip' is down to 55W at 60Hz, but from reading other threads that should be OK because the actual power is spread across many different frequencies. With four 80mm vents the air velocity stays below magic 11, but needs longer pipes than cabinet depth; I reckon 70mm pipes should be OK as I can 3D print ends flared out to ~80mm that should get rid of any 'whooshing' (Ignore the other plots!) Do these results look sensible? This is the first time I've use WinISD in anger and I might be making some really stupid mistakes.
  21. One of these, obviously: https://www.ebay.co.uk/itm/BIG-BUTT-004-BASS-made-in-USA/173889278327?hash=item287c9bd177:g:P2cAAOSw9iNbVddm
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