PA system mend & build, 2016-17
 1. The start of a project - 2x15" drivers for 70 quid... |  2. Second driver with standard toy sheep as a scale |  3. A complete basket case of a 2 kW amplifier |
 4. Will this thing ever work again?? |  5. Yup, that's a lot of output MOSFETs. And an empty mug of tea. |  6. Burny burny... Probably why the amp was skipped in the first place |
 7. More reclaimed speakers! 75 quid the pair... |  8. 1.2 kW successfully mended!! Hurrah! |  9. The cause of the 2 kW amp fire - missing centre tap on a secondary |
 10. Yup, there it was... |  11. And a botched mend. Approach wearing rubber gloves... |  12. But sine waves of the right form show on the scope. OK... |
 13. Disassembly time. At least the rectifiers survived. |  14. Wire colours for safekeeping... |  15. Output stage 1 in pieces. Board filled. Burnt bits scraped off. |
 16. Time to get preamps working again. Yup. They're a basket case too... |  17. Thank you Grant. A rewound, and now safe, transformer :) |  18. Side project - big speakers need an extra shed to store them in... |
 19. Nearly there... |  20. Plenty of floor space for a kite buggy |  21. And one shed extension complete. Time to put that project to one side... |
 22. :) |  23. 1.2 kW amp, bass preamp and limited in a box. Thanks Hop!! |  24. Output stage rebuilt. Three times. Preamps rebuilt. Twice. Now mending tracks... |
 25. Not pretty, but at least functional |  26. Testing... 0.28 kV peak to peak :) Looking good... |  27. Power test into a water-cooled load. About 50 W. No bang. |
 28. One water cooled load. With enough power now to make a cup of tea (500 W) :) |  29. It powers up! It hasn't gone bang! It looks like it works. Only 3 months work... |  30. Second channel after mending - all good. |
 31. Dumping power into that tea-making water cooled load again... |  32. Oh YES. This is more like it... 3.2 kW of amps now working... |  33. Now to build the things that a 2 kW amp can drive. First steps... |
 34. ...to a Bill Fitzmaurice Titan 48... |  35. Lots of crazy angles |  36. First branch of horn taking shape |
 37. Now with added baffles. And feet. |  38. Polyurethane wood glue rocks... |  39. A bit more progress. Panel by panel. |
 40. Completed horn pathway - now needs baffling |  41. Driver inserted. Yup, the support is back-to-front for those eagle-eyed readers... Ooops. |  42. Horn complete with baffles now. |
 43. And wiring complete. I hope it's mouse-proof. |  44. Side on... |  45. One whole tube of PU glue. Plus weight of 1 standard human. I hope it seals... |
 46. Final panel in place. |  47. Squirty glue everywhere. But it's got an amp connected to it now :) |  48. And BOY this thing shakes the shed :) |
 49. One crappy monitor built. Note to self - never buy Skytech again. |  50. Second monitor wedge under construction. |  51. More PU glue. And another crappy Skytech driver. |
 52. Second Titan at the half-way completion stage. Easier second time around? No. |  53. Driver in. Check. Cable in. Check. Wood clamps broken. Check. |  54. 2 kW of bass. This probably shouldn't be tested in a shed in a residential area. |
 55. And a near complete complement of monitors. |  56. Bye bye Skytech. Hello Faital Pro Sound. Monitors that now work :) |  57. Most of the rig at crude completion stage. Oh and the 2 kW amp went bang. |
 58. But the 2 kW amp was easy to mend this time. It does all fit in the car! Sound check time. |  59. Plenty of space for more... |  60. Mixer wiring. Must remember... |
 61. ...so a second equally meaningless photo is bound to help. |  62. Much much belt sanding later. And generous coats of blackboard paint :) |  63. Now that's looking a bit more like it :) All cables now made up too. |  64. And gig! 3.2 kW of front-of-house with 600 W of monitors. Nothing blew up. Phew :) |