Downunderwonder

I am not familiar with your NS bass attachment. Mine only has a harness mount but I could have had a tripod if I had ordered one. At the bass it is basically a friction swivel with a screw that loosens itself off at times. From the look of the Burns Bass cymbal stand adaption it appears the bass has the same mount point as mine. You are very unlikely to find any single off the shelf part to latch on to your tripod and give adjustment to the tilt. If you post a pic of exactly what hardware you have on the bass it would help figure out the 'kludge' solution.

Sending out a bass that buzzes and has a partially munted truss nut is not my idea of C.S. Maybe I expect too much of shops that put stuff up for sale online.

The logical extension to that school of thought is that a bassline composed of root note of varying length and intervals is sufficient. I am not of the school of bumpity bumpity bump. The bassline should be as audible as any other line that isn't the tune. In the traditional small ensemble the bass is much more often the bridge between rhythms of drums and the melody. I think non musicians struggle to isolate all the parts that aren't the tune. If I can't hear what the bass is doing then it's a bad mix! If all I can hear is bass it's worse but don't throw the baby out with the bathwater.

The chest cavity getting a tactile push is centered at 80hz. Is that what you are after?

Ya can't be calling it thump AND punch either.

This is not reconcilable with your other claim of adding thump with use of a compressor.

You have some strange definition of thump.

Seriously? Just from how you're (not ) selling it, the finish should appear like it had been applied in 1966 and left on display with nobody playing it for the last 57 years.

There must be PA support out front for the drums to get a good mix. Since there is PA support for drums the excess bass must be cut from the PA resulting in muddy mess of FOH and stage wash bass. All the extra bass on stage gets into the drum mics. More mud. Everyone turns up to hear themselves, yet more mud out front.

Why be louder than the drummer?

Check it hasn't had one end jumpered. Should be fine if it's a mic lead but random patch leads can be weird.

Another possibility occurred to me. If there is clip indication on all the legs into the amp inputs it would mean there might only be 1/2 the potential driving happening. You really should get an XLR cable on the job.

Potentially half your signal then went nowhere causing the one amp channel to be under driven but I would have thought the amp would be smarter and mirror a mono input to both channels in that mode. Putting one cab on each channel will soon tell.

Checking again, this condition was with one cab on each channel? That is the recommended setup. Did you check sound was coming out of both cabs?

Not using correct terms. Speakon is for speakers! Should be a balanced cable, either TRS or XLR from Sansamp to QSC. If you are lighting up the QSC overload light with a clean signal, that's your lot. Output to the cabs should be Speakons. If you have changed anything in the speaker cables from your old amp that would be a good place to look for a muckup.

Question for Notion P/C users. Can you export via PDF or do you have to print locally?

Ok. NEWS FLASH. The QSC manual says it has input sensitivity of 1.15V RMS. You might not be able to overdrive it with a BDDI but RBI no problemo. Starting to wonder if one of OP's speakons is messed up or the 15 already got blown up.

Marvellous plan.

Mixing up dB, dBV and dBU is always going to confuse. I always figured the 0dB on the back of the RBI was so the -20dB pad would have a reference. My RBI had no problem spinning up an old NZ PA amp or a Crown XTI. Afaik they were both standard 1.4V sensitivity input, being 0.7v per leg on a balanced cable. So that would be another potential dog to put down. Is OP running a balanced cable (or shorting half his signal)?

Two pro grade preamps not giving you what you should expect is either user error or your amp isn't operating to spec. 600w is a lot of power, same same as your Ashdown.

Just checking, you are using the 'Sansamp' XLR out from the back of the RBI set to full ( 0dB) output and turning up the XLR on the front panel?

Which part of ''Mike Smethurst ripped me off'' don't they understand? EVERYONE needs to report their FB experience in one 12 hour window or it forgets? Every 6 months I get an email from FB ''we see you have been having trouble participating, perhaps you have forgotten your password, here's a direct login link..''.Unfreakinbeleivable.

You should check the DCR on the 410. If it's 4 ohm the amp might go for a while at 2.7 ohms but the extra heat will do it in.

Reading between the lines it sounds like the previous bridge mono didn't happen so it must have been two cabs on one channel only? Still should have raised the roof. Makes me wonder what could be wrong. Dip switches? Protection mode from wrong cable? Gain stages up the wazoo? User expectations?

It would be very easy for the bridged amp to go all Django Unchained on your cabs. 360w a side really should be making plenty of noise. I have zero confidence in a 600w rating on a 15. I tend to discount those by 50% before they start to strain. So the 360w per channel is ample.