Originally Posted by
sguttag
besser = better
irritated = annoyed or possibly upset.
Whereas people come from all over the globe, there probably isn't a need to dive into one's broken use of a language when the intent seems self-explanatory based on context. Naturally, I'm fortunate that this forum uses English as its language (it is the one that I'm best at, though far from perfect despite a lifetime of usage).
"don't driver your truck with a lawn mower engine"
That is a poor analogy. The truck weighs a lot and a lawnmower engine doesn't have the horsepower to drive it. In the case of the speaker, the sensitivity tells us how hard it is to drive. Compared to the typical home speaker, the 4675 is much easier to drive and needs less power to achieve the same level as less-efficient speakers.
To keep with your car analogy, you don't drop a Formula 1 engine into your car you drive to work on normal roads. You can, I suppose, but you'd never take advantage of it...you'd just have to pay for it.
"a sub like Array 1500 have a built in 1kw amp, why should you use 1/10 of this with 2242"
It all depends on the usage and desired SPL. The 2242 portion allows a particular frequency response with a given cabinet and based on those two factors plus room size and desired SPL, you get to amplifier size needed to achieve those. If a room is 3-4m long and one is listening to music, you just don't need that much power.
Keeping with analogies, if your needs are that you are going to drink 2-cups of water in any meal, there is no good reason to get a full 1-gallon jug each time.
"but used for higher SPL and/or hometheater, it will be too litle[sic]"
Ah ha! Now you have changed the equation a bit. We've moved from music speakers (left/right) to home theatre subwoofer. Rather than just an augmentation to a normal speaker, the cinema subwoofer is its own channel with a potential 10dB more level. So now, the potential for the subwoofer is to play at about 112dBc (presuming reference level volume is set) in the pass band (120Hz and below). Coming off of that will be whatever room-gain you have and boundary conditions that might put the subwoofer in a more efficient circumstance. But yes, if the need was for a cinema-subwoofer, I would indeed go up on power. And, true to form, for my own home theatre were we built SUB 18 clones (a little larger) I'm indeed providing them with thousands of watts. In fact, despite being in the USA (normally 120VAC), that amp will be powered by 240VAC (home power) to keep the current down and avoid tripping any circuit protection (plus that balances out the power to the panel well). The 2269 is relatively inefficient driver but it plays quite deep and handles lots of power. I have two of them in the system for a room that is about 4m deep. They will be on the floor, in a baffle wall and near the sidewalls of the room.
"my experince [sic] is very often a high power amp will have better Control than a smaller Power amp"
Are experiences are not the same.
Power Amps for JBL 4675C
).
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