- MOSFET Monoblock Power Amplifier
- Remote Subwoofer Level Control Included
- Blue Illuminated BOSS Logo
- Max Power @ 2 Ohms: 1100 Watts
- RMS Power @ 4 Ohms: 250 Watts
My measurements show 21.5V rms continuous into 4 ohms at the onset of clipping with a 14.12V supply. This is 115W rms.
With no load it gives 23.9V with 14.12V supply. This corresponds to 142W rms peak.
So, essentially it is a 100-150W amp (4 ohms), or at best 200-300W (probably less) into 2 ohms. The claims of 250W into 4 ohms or 1100W into 2 ohms are at best ridiculously optimistic.
I would suggest that it is worth paying a bit more to get something better.
Buy Boss Audio R1100M Mosfet Monoblock Power Amplifier with Remote Subwoofer Level Control Now
Sorry folks...But there are a couple of myths, being two pieces of (...dare I say it?) outright misinformation that have become attached to this compact masterpiece, ...even though I'm sure both of them were offered with the best of intentions.
As for me, I thought I'd wait until I'd driven it hard and bounced it around the Aussie Outback for a couple of months before any attempt at reviewing it.
A little background: I'm an Audio Director/Sound Supervisor in my fifth decade of ongoing work in this field, most of it live (or "as live") and on location.
My Boss Audio R1100M is used to drive either full-spectrum sub plus line array or horn plus ported-woofer long range speakers (a choice dependent on the vagaries of weather and/or crowd numbers) at impedances from four to sixteen ohms, ...the only constant factor being the need to rely exclusively on DC vehicle power.
The verdict: ...five stars. No doubt whatsoever.
The Boss Audio R1100M delivers far more than something that's roughly the price of a case of beer should ever be able to do.
(What a crying shame that its excellent internal fan-cooling arrangements don't actually extend to chilling beer. Now that WOULD be a world-beater...)
To those well-intentioned myths:
First, "The Remote Subwoofer Level Control doesn't work."
Not when the amp's switched to "Full Range" it doesn't.
When it's in "Full Range", it isn't expecting to be driving just a subwoofer, is it? Switched to "Low Pass" (i.e. subwoofer) mode, the remote control works a treat.
Second, "It's under-powered."
Hang on a cotton-picking second, did you honestly expect to have mountain-moving power for the price of a case of cold ones?
Now look at it's main fuse. It's 30 amps. That's your lot, any more and it all goes dark and quiet until you replace the fuse.
Time for some basic arithmetic, 12 x 30 = 360. That's 360 watts of total power going in.
Wait a second, my alternator kicks out a gargantuan 14.4 volts! Whoopee! Hurrah! Huzzah! Hallelujah! I've now got an earth-shattering 432 watts at my command!
...Uuh, ...um, ...well, ...er, ...I WOULD have if everything inside the immaculately designed Boss-Box yielded 100% efficiency.
Sadly, 100% efficiency from ANY power system is the stuff of Nobel Prizes and/or science fiction.
(Trust me when I say that you won't ever again need to consult anyone's review of anything after YOU'VE developed a power system that's 100% efficient.)
Meanwhile, back in the "Real World", guess what?
With power being wasted to generate heat, run cooling fans and the losses inherent in each and every electronic step taken, the BEST amplifiers are around 25% efficient.
25% of 432 watts?
That would be 108, just a tad LESS than I (and others) have observed to be the continuous power actually (and reliably) delivered from this tiny Boss-Box into 4 ohms.
The controls all do exactly what they're meant to do. The sound is clean, gutsy and free of artefacts, so, by way of a conclusion, here's the outcome of some OTHER basic arithmetic I did prior to buying it...
I can't buy an aluminium housing of comparable ruggedness for the price of this entire amplifier.For anyone looking for a good, cheap, and reliable amp this is it. I have two 1100 watt 12'' Sony Explods hooked to this amp and they hit hard and sound clear. The company should actually charge more money for this amp and for its price you cant beat the sound and performance it puts out. I was impressed by this amp and it has done more than what i thought it would for the price. This amp truely is 1100 watts. For someone starting on a budget i would say this is the amp for you. It doesnt get overheated and if it does it has a protection system built in so you dont blow anything. This is a good quality amp that i truely think would be good for anyone starting on a budget or looking for a good replacement amp.Installed this amp to power a single JBL GT5 12". So far the amp has provided a flawless performance. You should spend some time fine tuning the low pass filter settings to minimize distortion. The bass boost switch isn't needed for a single sub, and the remote control does not need to be turned all the way up for satisfactory results.
I would recommend you use an 8 ga. power cord and ground for your installation. Ground the amp with 24" or less of 8 ga. ground cord. The "Boss" emblem lights up when the power is on, so you might want to install the amp where it will not reflect onto your rear windshield.
I have not felt any excess heat coming from this amp yet. The compact size is great for concealing in small spaces. I was able to install it in the back of an F-150 cab and still have enough room for cooling. This is my first experience with a Boss amplifier, and I definitely pleased with the results.
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this shiped fast and works great it makes my 10' sub sound amazing and it bumps my car so well. buy it you wont regreat it.
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