Bill Fitzmaurice

If it is 2512 loaded that means it will take two of the Aggies to equal the output of one BFST. I'd say that it probably is 2512 loaded, as a Kappalite based driver would be at least 450w each, and they wouldn't miss out on the opportunity to advertise the new 212 as 900w.

Setting up a PA desk is different. The last thing you want is to have clipping at the input stage, so that procedure would be more or less correct, at least as far as the individual channels is concerned. However, a good desk would not have the 0dB setting the max, either on the individual channels or any of the outputs. 0dB would typically be at least 10dB below maximum. Also, you wouldn't start with both the desk outputs and the power amp attenuators at 0dB. Doing so might result in the input gains being too low for acceptable signal to noise ratio. A knowledgeable engineer uses the input LED readout to be sure that the applied gain puts the signal strength in the Goldilocks zone.

I don't know why they say that either. It has nothing to do with Class D.

Chinese gear using the name of a long defunct American brand. Nothing special.

Chances are that tone control is the same as the one in your bass, a simple high frequency shelving filter. You can change its knee frequency by changing the value of the capacitor, but nothing you can do will turn an inexpensive guitar combo into a capable bass amp.

This could be an example of because you can do something doesn't mean that you should.

I still have mine, but those aluminum heat retainers came off it before ever seeing a gig. One has to wonder if the designer had ever seen a heat sink, let alone understanding the concept.

You can't tell anything definitive by the position of the knobs, as there are many other variables, for instance his Fender J passives.

If an amp gets that hot and it doesn't have a decent fan it should. Even if it's not hot enough to cause short term damage it will probably cause long term damage. My Superfly was horrid, the aluminum handles/'heatsinks' didn't dissipate heat, they held it. I got rid of them, out the amp in a rack case with a 3" fan, no more heat.

There's no such thing as altruism in business. Offering amps and cabs that will still work with older gear is a business decision. It's not necessarily a bad decision, but if regulatory agencies were paying attention they wouldn't be allowed to put them in amps or cabs that their current rating isn't suitable for. They're not paying attention because it's a very small industry in the grand scheme of things.

That it will, and it will work as well as it ever has since its invention circa 1878. The issue is that for the last thirty years there has been a better option. If you're content with what you have, use it. If not, welcome to the 21st century. The only 'vibe' is to continue making sales. They don't want potential buyers to go elsewhere for the lack of having 1/4" inch jacks. They'd still offer banana jacks too if they thought that they could make more sales, and there wasn't the slight inconvenience of their having been banned in Europe.

SS amps hate very low impedance loads or shorted outputs, tubes hate very high impedance loads or no load. The one saving grace of a 1/4" output with tubes is that you can use a switching jack to short the output transformer secondary to prevent damage if there's no speaker plugged in to the amp. Fender has used that arrangement since the 50s. The Fender switch is on the Speaker jack, not the Extension Speaker jack, so if you plug into the extension rather than the speaker jack the switch remains closed and you get no output. I doubt there's a Fender owner who ever lived that didn't find that out the hard way, even to the point of thinking the amp was blown. Tubes are also almost immune to too low an impedance. Back when I didn't know any better I ran Fenders into 1 ohm loads all the time with no ill effect.

That's why I mentioned there was no SS when 1/4" were adopted. Tubes aren't bother by shorting the output. With the introduction of the first direct coupled SS amp whoever did so should have found a better connector, especially as early SS amps had no protection circuits. Many an output transistor and power supply died that way. Many more mics, effects, extension amps and even pickups died from being plugged into the speaker outputs. Where current is concerned Ampeg made an effort with the early SVTs, using five pin XLR connectors, but gave in to customer backlash when they wanted to use their SVT heads and cabs with different cabs and heads.

On average even the lightest speaker cables have 16 gauge conductors, whereas instrument cables tend to run around 24 gauge or lighter.

The only logical reason for doing that is if the cab being daisy chained off doesn't have dual speakons but does have one speakon and one 1/4", or if the second cab only has 1/4" and the first has both. But technically speaking you should run cables to the head from both cabs. With the PF500 one would have to be 1/4". Ampeg's jack choice is odd, as there are speakon/1/4" combination jacks. They should have used two of those rather than one speakon and one quarter inch.

I have, though that's not what the thread is about. The issue in this case is using 1/4" phone plugs for speakers. That choice was made by Leo Fender in the 1950s, when 50 watts was a large amp, SS didn't exist, and there was no such thing as a connector specifically designed for the job. The deficiencies of 1/4" connections for speakers are well documented. If you're attitude is 'they've always worked for me' consider the man who jumped off a fifty story building who was heard to say as he passed by open windows on the way down "So far so good".

Not particularly, since the response of typical tens, twelves and fifteens in the low end isn't all that different. There are atypical drivers that do have not only lower frequency response but also longer excursion, which is another necessity, but by and large the usual sources don't use them. For that matter with the majority of usual sources you have no way of knowing what's inside the box.

I once managed with a '63 Chevrolet. I wouldn't want to do so again.

Well done Black and younger female voters, those who had the most to lose if Moore was elected. I'd not the slightest who Matt Dillahunty is until reading your post. I looked him up, he's no more representative of the average American than those the polar opposites of that particular spectrum.

You'd be best off to replace the 1/4" in the cab with Speakon, or have it done for you. 1/4" is fine in its original intended application, telephone switchboards, but where speakers are concerned there's nothing about them to recommend.

I'd put the percentage who hold that belief to be closer to five. Don't confuse religious fundamentalism with political conservatism. Even on that the percentage of American voters who are true conservatives is nowhere near half. As with true liberals it's more like 15%. The vast majority are actually centrist, with leanings one way or another, but not strict agendas. OTOH the percentage of Americans who are numbingly stupid probably does approach half, but occasionally something happens that reaffirms the potential for hope that we still have a future, yesterdays election result in Alabama, for instance.

It's not. Anything less than a fourfold increase in power isn't worthwhile. On that adding a second identical 8 ohm cab will have the exact same effect as quadrupling power, you'll get a 6dB increase.

If it's thermistor controlled it will come on at a set heatsink temperature. The amp power has nothing to do with it, there are 100 watt amps that need a fan, there are 1000 watt amps that don't. The advantage to a fan is that it allows smaller heatsinks.

The way that driver manufacturers test power handling is to feed them pink noise at a given voltage for a given time period. If the voice coil doesn't burn out they do it again at a higher voltage, and so on until it does burn out. I don't recommend you try that.

Even if you knew what it is there's no way to know the maximum output of the speakers. If what you're really asking is what is the maximum power input rating it doesn't matter all that much, it will distort long before that point is reached.