How many watts per channel? - Car Audio & Video

100 rms watts per channel. It's a 500 watt amplifier

Speakers are rated either at RMS (root mean square) average power or Peak Power. An RMS of about 125 watt is equivalent to 250 watt peak. To match the radio and speakers they both need to be consistent. Also do not be confused with total radio power out vs per channel.

So if the speakers are 250 watt peak power then a radio with 125 watt per channel or 250 watt peak per channel would be a good match.
If the speakers are RMS 250 watt then the radio would be 250 RMS/channel and usually with a four channel radio a total of 1000W RMS
With that much power the neighbors should hear you coming!

Those specs would be right - I have this same board but the amp was fried by a previous owner. I pulled the amp board out and tossed it and use the mixer now to drive an external amp. Great board. This amp is rated at 1200W "peak", bridged into an 8ohm load. That would equate to about 900W RMS bridged into 8ohm or 450 per side into 4ohm loads per side. You can't daisy chain all 4 speakers....impedance would be too low. You can run two of your 8ohm speakers per side - that results in a 4ohm load per side for the amp. That would give you amp delivery of 450W per side. Your speakers are rated to handle more than that so you're fine. For the record.....you could run one speaker per side no problem....just lower power output.

800 watts per channel @ 4 ohm

400 watts per channel @ 8 ohm

400 watts per channel RMS @ 4 ohm

200 watts per channel RMS @ 8 ohm

According to page 24 of the manual, it delivers 11 Watts RMS (route mean squared) per channel into 8 ohm speakers.

Elsewhere in the manual, you'll see references to "15 watts per channel" and as much as "25 watts per channel". The 15 watt value is valid when putting up with some 10% THD (total harmonic distortion), this value is 11 times higher than the .9% THD value given for 11 watts per channel. You tolerate .9% THD now, but you wouldn't want to listen to anything with 10% THD. The 25 watts per channel is what they call "Music Power". Watts is an electrical term, "music power" is not. You could use it to compare other devices that only offer "music power" values, but the best indication of how it will perform is based on watts in RMS, into an 8 Ohm load (most speakers are 8 ohms). The lowest THD values are best.

From the manual:

AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 8 ohm loads, both channels driven, from
70 - 20,000 Hz; rated 11 watts per channel
minimum RMS power, with no more than
0.9% total harmonic distortion from 250
milliwatts to rated output.

I hope this helped!

I have the following specs for you
Basically 150watts per channel using two channels , or 75watts using all four
Here goes:

• 4 Channel Mosfet Amplifier
• Advanced Overload and Thermal Protection
• Metal Film Capacitors/Resistors In Signal Path
• Frequency Response +/-1dB, 20Hz to 20 kHZ
• Signal to Noise Ratio (A-weighted) >100dB
• Max Continuous Bridged Power @ 1% THD 150 watts x 2 into 4 ohms @ 14.4 Vdc
• Max Continuous Power per Channel @ 1% THD 75 watts x 4 into 2 ohms @ 14.4 Vdc
• Nominal Continuous Power per Channel @ 1 % THD 35 Watts x 4 into 4 ohms @ 14.4 Vdc
• IASCA/USAC Power Rating 12 Watts x 4 into 4 ohms @ 12.5 Vdc
• Minimum Load when Bridged 2 Ohms
• Minimum Load per Channel 1 Ohm
• Input Signal Voltage Range 0.1 volts to 2 volts
• Crossover Type Resisitor Network, Linkwitz Riley,
• Highpass/Lowpass
• Crossover Slope 24 dB per octave
• Crossover Frequency Range 20-550Hz
• Factory Crossover Setting 85 Hz
• Auxilary Output Channels 2
• Auxilary Output Frequency Range Highpass or Lowpass, Opposite of Speaker Output
• Bass Boost 0- to +18dB @ 45 hZ
• Power Supply Voltage 10Vdc to 15.5Vdc
• Recommended Fuse 40 amp

Dimensions 12.25L x 9.25W x 2.10H

Well... It consumes 240 watts of electrical power total so take the audio power specifications with a huge grain of salt, as no audio device puts out in audio power anywhere near what it consumes in electrical power. Heat produced is power consumed, too and nothing is 100% efficient.

In the specs below the only information useful for comparison is in the line I highlighted with >>> <<<<'s as it conforms the closest to the industry standard practice of using:

"X watts into 8 ohms (standard load) from 20 - 20000 hz plus or minus Y db at no more than .0Z% distortion"

The better amps specify vanishingly low distortion specs (0.0x% vs 0.x%) at the cost of being able to claim higher wattage. But they guarantee cleaner sound at the claimed levels.

JVC is being tricky with their choice of a 40 hz lower limit. THAT is the power hungry end of the spectrum. 20 hz is normally the lower limit stated.

"Output Power .............At Stereo operation
Front channels .............55 watts per channel, min. RMS, driven into 4 ohms at 1 kHz, with no more than 0.9 % total harmonic distortion. (IEC268-3/DIN) 30 watts per channel, min. RMS, driven into 8 ohms at 1 kHz, with no more than 0.9 % total harmonic distortion. (IEC268-3/DIN)

>>>>> 30 watts per channel, min. RMS, driven into 8 ohms, 40 Hz to 20 kHz, with no more than 0.8 % total harmonic distortion. <<<<<

At Surround operation
Front channels .............50 watts per channel, min. RMS, driven into 8 ohms at 1 kHz, with no more than 0.8 % total harmonic distortion.

Center channel .............50 watts, min. RMS, driven into 8 ohms at 1 kHz, with no more than 0.8 % total harmonic distortion.

Rear channel .................50 watts, min. RMS, driven into 8 ohms at 1kHz, with no more than 0.8 % total harmonic distortion."

140 watts minimum continuous power per channel, 8 ohm
loads, 2 channels driven from 20 Hz to 20 kHz, with a
maximum total harmonic distortion of 0.05% (FTC)
170 watts minimum continuous power per channel, 8 ohm
loads, 2 channels driven at 1 kHz, with a maximum total
harmonic distortion of 0.7% (FTC)
180 watts minimum continuous power per channel, 6 ohm
loads, 2 channels driven at 1 kHz, with a maximum total
harmonic distortion of 0.1% (FTC)

Straight from the product's manual...

-------------------------------------------------------------------
Amplifier section
Power Output-
[Stereo Mode]
125 watts per channel

[Dolby Pro Logic Mode]
Front
120 watts per channel

Rear (Surround)
60 watts per channel

Center
120 watts
-----------------------------------------

Click HERE for the manual.

There you have it.

Cyryl

Hi this is Compaqowner again NOTE: I know enough about home Stereos,and I am pretty sure to figure out 'power output' you take the total:in this case it takes in 110 watts total devide that by 2 so according to my math that is 55 watts (I guess this AKAI has a 55 watt amplifier) then you take the amplifier output (in his case 55 watts) and devide that by how many channels are being used,so in 5.1 DOLBY mode DVD movie,etc.(power to all 5 speakers) then it's 11 watts per channel,and in 2.1 stereo (power to the subwoofer,front right,and front left speakers only) it jumps up to a little over 18 watts per channel,again,I think?,when you find the answer,please let me know. Thank you for your time. Steve B.