tauzero

After a little puzzling, I realised that you meant scratchplate, not fingerboard.

That might be simply what that patch does. I'll try it myself in a bit and see what it does.

The impedance of the Stingray pickup is quite low, that of each Ray4 coil is more than double. Connecting them in parallel and installing a 2-band clone EQ (Retrovibe Stinger or one of the DIY kit ones) would give a pretty close approximation of the Stingray sound - the pickup and preamp interact far more on the Stingray than on other active basses.

What appears to be wrong? I got caught out because you have to pair it twice, once for audio and once for control.

I was using a TC BAM200 (maybe 130W into 8 ohms?) with gain near maximum (blow clipping) but volume around 12 o'clock, 5 string bass with the EQ fairly flat and mostly quite well above bottom E. Nothing wrong with how it sounded - had only used it for 15-30 minutes, and I'd used it before with no issues.

You have my sympathy. It does point to that speaker not being suitable for, well, anything, except as a large and very expensive paperweight.

Screws are #4-40 x 1 1/4" (it says in the EBMM parts description). https://www.westfieldfasteners.co.uk/A2-ScrewBolt-PhilFillister-UNCoarse0.1120.html has them 1 3/8" long which would need cutting down slightly (for which a nut would be highly advisable, put nut on first, cut bolt, take nut off so it reforms the end of the thread). Edit: Head description is Philips Filister, thread type is UNC.

I was thinking in terms of relative measurements rather than absolute ones - an inexpensive and easily reproducible means of comparing amps, at distortion levels that those of us that don't like overdriven amps are happy with and at those that those who do like overdriven amps are happy with.

Welcome. And in answer to your question, in-ear buds are fine for bass. For further information, you can spend a couple of days reading the IEM bible thread or just read the first post in it.

I would suggest that rather than using actual noise (antisocial and not necessarily easily reproduced), a better approach would be to create a dummy load that would emulate a speaker and measure the voltage across that to establish output power. A crucial point would be a means of measuring THD and maybe have two sets of measurements, one at 1% THD and one at 10% THD. Then do four plots, two with tone controls set at 12 o'clock at 1% and 10% THD respectively, and another two with tone controls set where they give the flattest frequency response (and document those settings), again at 1% and 10% THD. This is just off the top of my head, I'm sure there are lots of holes that can be picked in it.

There's some Youtube videos of how they appear. Mrs Zero watched one of them (can't remember which now) and said it was accurate.

Just bought a telescope from Russ @binky_bass - all went well and it arrived quickly.

There is a 1-band parametric EQ too which I've used as an HPF on mine.

It would certainly be worth shielding it, both the control cavity and the pickup cavity.

BC house jam micro cab and TC BAM200. Used for open mic nights and some gigs (with PA support if needed). Slightly unsightly seam and cab feet are because the handle is on the top and the BAM200 is rather short in the foot department, so can't straddle it.