Bill Fitzmaurice

They were actually Canada's Fender. They were fairly popular as a less expensive alternative to Fender back in the 60s-70s, especially in the states that bordered Ontario and Quebec. I bet thousands made the trip across the bridge that connects Windsor, Ontario with Detroit. Back in the day crossing the border entailed not much more than a wave at the agents, and no one paid much attention to what was in your car.

Far more often than not that's true. You can combine just about any two cabs and they'll sound better than either one on its own. That's because the two will be louder than one at the same amp setting, and louder is subjectively better. However, the only way one can know if X+Y works better than, or even as well as, X+X or Y+Y, is to try all three combinations side by side. In some twenty-five years of seeing these discussions I can't recall a single instance where someone actually did so.

Horizontal 210s, or horizontal any ten or twelve configuration, were originally created because valve amps were wide. It's not like the audio community didn't know that vertical was better. St. Paul's Cathedral in London was equipped with vertical arrays in 1949. They were only recently upgraded, with new vertical arrays. http://www.pamphonic.co.uk/029_wireless_world_1952_St_Pauls.PDF Now that amps are much narrower speaker manufacturers are finally making available what they should have in the first place.

I haven't come across the tweeter option at BF. I recommend the Eminence BGH25-8, in part because it rolls off above 10kHz, where there's no useful content. The other part is because with 4th order filtering it can be run down to 2kHz, where it gives much wider dispersion than a woofer can.

Tweeters don't hiss. Amps do.

It doesn't. But the extension should be ported as well in any event.

That's true of all speakers, and so long as they're less than 1/4 wavelength off the floor it still applies. I/4 wavelength is 86cm at 100Hz, 172cm at 50Hz. The same applies to the distance from the baffle to the wall behind the cab. This does bring up another point. If you have boom you can reduce it by lifting the cab high enough and/or pulling it away from the wall far enough. In effect you can utilize the cab height off the floor or distance to the rear wall as a notch filter. As to cabs being too bass heavy at gigs it's often for the same reason. You can have a combination of cab to ear to boundary distances that result in cancellations of the lows where you're standing. Move away and the distances are longer, cancellation frequencies shift downward to below the range of the bass, and magically it's louder and deeper ten meters away from the cab than it is at two meters. Just another tidbit that guitar players need not be concerned with, but bass players must.

Yes, but refrigerators tend to be between 38 and 40F, so as not to freeze anything. My mother told me when I was a baby our refrigerator, in winter anyway, was a peach basket perched on a stand outside the kitchen window. It's going to hit 50F here tomorrow, then back down to the 20s on Sunday. We're usually around 10 degrees higher than Toronto, 10 degrees lower than Boston. For sure OP keep an eye out for refrigeration. Commercial units are notorious for creating a mess of the AC, even when on different branch lines.

Probably rounding it up. That's OK, because nominal driver impedance ratings are just that, nominal, not exact.

You'll get the best result with another cab loaded with the exact same driver. Otherwise you're creating a chain with a weak link. Comb filtering has nothing to do with the driver sizes. It happens in the highs when drivers are placed side by side. Doing so also halves the horizontal dispersion in the mids compared to a single driver, or multiple drivers vertically stacked.

Three 16 ohm drivers would give 5.3 ohms, which is as low as one really needs. That's no problem with OEM, but at retail there aren't many 16 ohm drivers to be found.

Resistors won't work, they lose too much power and get too hot. 12 ohm voice coils aren't a problem for OEM, you just have to meet the minimum order requirement. With Eminence that's 50, although I can't see anyone order fewer than 100.

Oh, I always replied similarly when my wife said something. But I never actually heard what she said. It was just a defense mechanism against her repeating herself. 😉 I didn't notice where you were ordering it, so this advice is late, but this or something similar would do much better: https://www.sweetwater.com/store/detail/AmpStd--on-stage-stands-rs7000-tiltback-amp-stand

I'd think it's cold enough there to put much of it outside. Not frozen, of course, although I could have done that last week.

I wouldn't, since my 112 goes as loud as a '69 SVT 810 would. 😉 It's a form factor that we really haven't needed for some thirty years now, thanks to both driver technology and PA. It remains the staple backline rental cab, since you won't find anyone who can rightly say that it's inadequate.

It's certainly possible. How low or how high a driver will go isn't determined by its diameter.

When you have one speaker that's optimized for use in the lows and one that's optimized for use in the highs. Electric bass 410s and 215s are not. They're both full range.

I saw that, but separately powering isn't bi-amping. I said 'you may' as one amp may suffice, if the impedance load isn't too low,

That could make things worse. Ground loop noise intensity is increased as the length of the ground wire is increased. Worse, it varies by the square of the wire length. Doubling the wire increases noise by a factor of four.

That, along with the rest, indicates you might have issues with midrange. In ear may not help unless you have EQ capability to boost the mids, for added intelligibility. As for the Missus, IMO they shouldn't use female voices for GPS, as I'm genetically programmed to ignore them.

Don't bi-amp when both speakers are operating in the same frequency range. Chances are your Trace 410 goes if not just as low then almost as low as a 215. You might want to separately power the 215, for independent volume and EQ control, but you wouldn't use a crossover. Where bi-amping would make sense is using a 110 with a 215, and then only if the 110 is loaded with a guitar driver.

It saves your back and gets the cabs even higher, which is a good thing. 😉

Not necessarily. Boom occurs in the 80-120Hz range, an octave above pant flapping lows. Ported cabs can be boomy, if they use drivers that don't have specs that are tailored for ported and/or the cab is tuned too high and/or it's too small. If anything sealed are more likely to have a response bump in the 80-120Hz range, while dropping off like a cliff below 80Hz. If you're used to the thin lows of sealed and prefer it that's fine, but where economy of size is concerned a pair of ported 2x10 will equal the low end output of a sealed 8x10, while you can cut back the lowest octave with EQ if that's your preferred tone. What you can't do is to boost the low end of a sealed cab with EQ to get those trousers flapping, as the drivers will run out of excursion.

A pair of vertically stacked 2x10 will. Sealed don't go as low. Where the bottom end is concerned a pair of ported 2x10 will match a sealed 8x10.

If it was good before and isn't now something's been changed. Find out what and you'll probably solve the mystery.