Power is normally specified as RMS watts. Stating peak power is a marketing gimmick.So would it most likely be 500w RMS or peak?
I need high power speakers and amps because my HT media room is highly damped at low frequencies to help eliminate room modes. I need the acoustic power to maintain a dynamic range that matches the uncompressed source material at normalAs the others have stated above, loudspeaker ratings are usually pure marketing fairy tales. The output of a speaker is dependent on many factors including speaker sensitivity, the inductance of the voice coil, The limit of travel of the cone, The temperature of the coil which increases during prolonged high power levels, the characteristics of the enclosure, etc. There have been cases of marketers advertising speaker power using pk/pk power which is 2.8 times higher than the rms power.
I am curious to know why anyone would want to buy a 500 watt speaker unless they were equipping a concert in a very large arena. 1 watt of audio power is quite loud in the average home. 500 watts is enough to permanently deafen the whole street.
Regards,
Keith
Not usually if the speaker driver is designed with that in mind. You can buy the same basic type of professional speaker with different speaker coil combinations for the impedance needed for a specific speaker array wiring connection.I'll point out again "I'm no expert" but doesn't the speakers Ohm's fit in here somewhere?
The 2, 4 and 8 Ohm is on that speaker for a reason.....isn't it? Doesn't it take more power/wattage the lower/higher the Ohm's number to get the same results?
Brzrkr
Ohm's Law says that a 2 ohms speaker uses double the current of a 4 ohms speaker or 4 times the current of an 8 ohms speaker.I'll point out again "I'm no expert" but doesn't the speakers Ohm's fit in here somewhere?
The 2, 4 and 8 Ohm is on that speaker for a reason.....isn't it? Doesn't it take more power/wattage the lower/higher (Can't remember) the Ohm's number to get the same results?
Brzrkr
Nova 8's, Optimus-5B's and several other antique Radio Shack speakers have 12" woofers.The antique Radio Shack speaker uses a 10" woofer. The most expensive Parts Express "professional" Faital 10" woofer has a maximum rated power of 300W RMS for 2 hours and has 96dB sensitivity at 1W/1m. Then its output is 84dB at 1W/4M or is 108dB (pretty darn loud) at 256W/4m. If 2 woofers are playing 256W then the sound level at a distance of 4m is 111dB.
Years ago I measured 120dB in a disco when I was 2m away from one 18" woofer and many metres away from other woofers. Each one had a 900W amplifier but were not playing at maximum output power.
My reason for asking was what if someone where looking to replace a speaker. It would matter then...right?nsaspook said:Not usually if the speaker driver is designed with that in mind.
power/current same thing. Isn't a 2 Ohm speaker louder than a 4 Ohm speaker with the same current going through it?AG again said:Ohm's Law says that a 2 ohms speaker uses double the current of a 4 ohms speaker or 4 times the current of an 8 ohms speaker. An audio amplifier is a voltage source where its output voltage swing is not changed by the speaker ohms. If the amplifier is designed to drive a 2 ohm speaker then the current is 4 times higher than with an 8 ohms speaker but the power is the current squared times the ohms. The amplifier and the speaker must be designed to survive the power.
The power is the current squared x resistance so for the same current, a 4 ohm speaker would output twice the power of a 2 ohm speaker.power/current same thing. Isn't a 2 Ohm speaker louder than a 4 Ohm speaker with the same current going through it?
The impedance of a modern amplifier Never matches a speaker's impedance. The output impedance of an amplifier is much much less than the impedance of a speaker so it can damp resonances of a speaker. It is called the Damping Factor. Many amplifiers have an output impedance of 0.04 ohm and some even lower.So, yes, the impedance does effect the power out, but if the amp and speaker are matched, it does not matter.
Now you know! In fact through their chatter amugst themselvesUnfortunately there doesn't seem to be any information about it online, that's why I'm asking it here.