Question: This states it's a 2x4w amp. But at 12v and 2 amps it seems it should be more around 24-36 watts, and back says "100 watts". Thoughts?
453090
This amplifier runs on 12 volts DC. This means that if the entire 12 volts was available at the output, which it is not, the maximum output would be an alternating voltage whose value ranged from 0 volts to 12 volts, or 12 volts peak to peak. A 12 volt peak to peak AC voltage transfers the same amount of power as a 4.242 DC voltage. Into a typical 8 ohm speaker, 4.242 volts DC would supply 0.53 amps, or about 2.25 watts. Because real-life amplifiers cannot swing through the entire power supply voltage, the actual number would be less. The manufacturer claims a peak to peak power per channel of 4 watts. This translates to an actual steady power output of 1.42 watts per channel into an 8 ohm load, which is what one would expect. Since amplifiers of this type are often only about 25% efficient, a 12 volt supply rated at 2 amps is recommended, although it will work with less. What the 100 watt number refers to is unclear to me. There might be some special calculation practiced only by advertising people that derived it.
453091
u can use a volt/ohm with no load on the output to see the max volts it will run without clipping,no way it will produce 100 watts rms,use 4 ohm speakers,i never used my kinter I bet it would make a better headphone amp than anything else,i use the lepai 2020a for my pc with a powered 100 watt sub...sounds good if u don't go high enough to clip...
453092
4 amps seems accurate. I don't remember everything I learned in college about physics and electronics but I think you're looking at the input power which pretty much has nothing to do with output. I'm sure a lot is lost in heat and the lights etc.
453093
This amplifier has a bridged (BTL) output. This means that neither the plus or minus output for each channel connects to ground - nor should you connect anything between them and ground. The BTL output allows the output to swing to the full 12 volt power supply - or (in theory) makes four times the power because P = V (squared)/load impedance. This makes potential output power about 18 watts per channel into an 8 ohm load. (12 * 12)/8 = 144/8 = 18 watts. In reality, it's probably 10 - 12 watts per channel. Another trick you can use with the BTL output is to connect a single speaker to the + terminal of one channel and the - of the other, which will give you a mono output. This amplifier has a bridged (BTL) output. This means that neither the plus or minus output for each channel connects to ground - nor should you connect anything between them and ground. The BTL output allows the output to swing to the full 12 volt power supply - or (in theory) makes four times the power because P = V (squared)/load impedance. This makes potential output power about 18 watts per channel into an 8 ohm load. (12 * 12)/8 = 144/8 = 18 watts. In reality, it's probably 10 - 12 watts per channel. Another trick you can use with the BTL output is to connect a single speaker to the +... » Read More This amplifier has a bridged (BTL) output. This means that neither the plus or minus output for each channel connects to ground - nor should you connect anything between them and ground. The BTL output allows the output to swing to the full 12 volt power supply - or (in theory) makes four times the power because P = V (squared)/load impedance. This makes potential output power about 18 watts per channel into an 8 ohm load. (12 * 12)/8 = 144/8 = 18 watts. In reality, it's probably 10 - 12 watts per channel. Another trick you can use with the BTL output is to connect a single speaker to the + terminal of one channel and the - of the other, which will give you a mono output. « Show Less
2271218
Hello, it is 720 watts (6amp). I do not use it a lot, but everytime I needed it performed greatly. Cheers!
2026875
Actually, I got the 8" sub. It says 600 max. peak, 300 RMS. I'm running a 100 watt continuous power source to and it does fine with no distortion. I don't what it would do with 600W. Have my doubts about that.
2238221
Maybe too much power. Difficult to get rms figures for the amp but I reckon 300w per channel works. The amp seems quite happy driving one cabinet with one channel only. You can always use the second channel for a second cab should you ever get one. BTW. Amp still going strong. No problems.
2127671
You will need two Amps then. 1 won't be hitting them that hard. 4 to 1 amp for a 1200 watt amp. If you get a bigger amp you will need to buy a compositor and much more and bigger wire.
1255454
I will agree with you, the rating seems low. I have them operating on 70 volt lines and am running it to 25 watts without any trouble. I'm sure it can go more. Remember, that 50 watts could be 5 amps...+_ depending on output voltage and load impedance
1159039
My friend who i think actually has a review posted about this amp (gordon or gdiddy) has this amp powering two 15in p3s and they slam! If you are worried about it being too weak just wire to 2 ohm (900 watts) or 1 ohm (1200 watts)
1558385
the max output is 100x4 (@4ohm) and 200x4 (@2ohm) and 400 bridged at 4ohm....so i would say the rms is around half or a little less than half. probably around 45x4 (@4ohm) and probably 75x4 (@2ohm). the amp sound awesome on highs but i wouldn't hook a subwoofer to it.
375568
I was going to say it seemed like 100 watts rms was the stated max for wattage--and durned if I wasn't right....Just know its just a numbers game with higher #'s being more impressive. I look at the sensitivty rating of the speaker 1st especially for car systems--they seem to play even more 'bigger is better games' than the home system players. Anyway, it's all in your ears when it comes down to it...that and budget restraints.
1256949
I have no idea,Watts?I have a guitar amp that is 135watts,Not sure why you would ask that??
1692843
I just checked, and it's 100 watts, which would make it just under 1 amp. Plenty of power for everything I've done with it.
351672
This page says 40w x 4 rms @ 4ohms + sub. all other info is 75w x 4 rms @4ohm. which is correct. ?
1813318
I would consider this amp underpowered for your task. Look at its rms power and you should understand why.
1535775
Hi Tyrus, I think the amp is more than sufficient. Please start at low volume otherwise it may damage the speakers. I have used this amp with a couple of speakers between 300W to 500W and it performs well. Thanks and I hope this helps Fernando
1176932
Dear customer,thank you for your message.sorry.------------------------------Output Power : 20W X 2 RMSInput power : 12v 2A DC--------------------------------looking forward to serving you again soon.Kind regards
2268116
no the amp at best I would say it's 75 watts it will not perform good at all unless u just care of a bad boom sound.
1020495
If I remember correct I think its 400 watts.. I use 4 of these speakers in my yard. they stay outdoors in the open all summer.. I bought an inexpensive Pyle hybrid amp. The amp goes perfect with these speakers- it has a mic jac in it. Im an old hard rock drummer, I play them constant blasting . you dont need a sub the base is perfect, There great speakers, there not small.