great value for power, low ipedence mono sub amp capable of 2ohm mono, 24 db/oct crossover

not enough power for a serious system such as one high 130's and above

i have this runnig two alumapro alchemy 12 at 2ohm mono, very high end subs that i have had no doubt in my mind trusting this amp with. it hits low to mid 130's and still sounds great. and for the money i paid ($230) i got a great quality amp. its been run for nearly ten hours on a road trip and didn't even get hot. i estimate it puts out 240 watts rms at 2ohms mono or 120 4ohms mono. i would recomend this amp for anyone looking to start a nice car stereo system or a stereo veteran looking to put in a very nice modestly loud system.

Looks good, lots of power, inexpensive, low distortion, easy access to controls.

Difficult to bridge, instuction are too long.

$300(CNovoer all good amp, low cost, good bass, all under a reliable name. Lots of features.

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N/A

Under rated, this amp pushed four 12in kickers very nicely in the back of a 90' crx. In fact it was entered in two local comps. and took first in watt class both times. I think it hit 149 at Jam Zone in Batavia, OH.

Four the money, none. My brother decided that it pushed the 12's so good he tried 15's and it just didn't have enough push to get it. The 12's were actually louder than the 15's.

Alpine V12 MRV 1000, rated at 400x1 at 4ohms. I work for a car stereo installaion company and received the amps at cost so I am unable to disclose the price. I have been installing professionally for four years. The V12 amps are a great amp for the price. Extremely clean, I saw where some of the other reviews were dogging it out, but it sounds like their knowledge is limited to hooking the wires to the amp, and not on tuning the system. It was one of the best amps I have ever owned, If you are thinking about buying an Alpine amp do it, it is a good investment. I currently own a PPI Power Series, which is very nice but is less wattage and I have lost the edge on my bass, but it still sounds pretty incredable. I guess you are wondering why I got rid of it if I liked it so much. Well my brother traded me a brand new PPI for the Alpine. He has 2 MRV1000's and a MRVT500 in a 98' Blazer ZR2. He did a complete Alpine system including DDDrive Flagship series 6 1/2 components, DDDrive 6x9 three ways, DDDrive 12in servo driven sub(like nothing I have ever seen in my life) and two dividing networks. Speakers mounted in factory positions except tweeters and a custom enclosure for the sub and everything else is installed Flushed up to a new sub floor he put in the back of his Blazer. Very tight, people who come into the shop rave about it all the time. He put one of the 1000's on the components, they absolutely scream (did I mention they were the cleanest I have ever heard) which is 100x2 stereo, plenty of power for 6 1/2's. The T500 is on the 6x9's very nice 50x2 wattage. Last but not least the 1000 on his Sub, mind blowing for one sub. Never had a problem with heat my amps are set to where they never get much more than barely warm, and have never kicked off because of heat no matter how long the trip is or what the temp outside is.

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Phionx Gold, PPI

I got a killer deal on a brand new V12 F407 amp, one of the best V12s available and I have been extremely happy with it. The installation was top-notch and the system it powers sounds incredible. My V12 will be powering my system for many years to come. Based on other people I know with V12 amps, it will be lasting me awhile too.

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Xtant, Clarion, Rockford

Clean power

I have the 5 channel amp that is rated 30x4 and 100x1 at 12 volts. The actual specs sheet says it is 44x4 and 120x1 at 12 volts. At my trucks 14.6 volts I am sure it puts out more. The amp is powering 2 sets of 6 1/2 componets and a DVC Cerwin Vega sub. The amp has cross-overs and line level adjustments for the front, rear and sub channels. It is a clean sounding amp and there is absolutely notback ground hiss in my system. It plays loud and has not givin me any problems. I read some of the massages about the amp, but mine has not gotten hot. I am not a bass head but I listen to R&B and Rap music and the bass is just enough for me. I paid $410 for the amp, and I believe a got a fair deal. I am planning on replacing my Cerwin Vega with two 10 inchers. I plan on wiring them in paralel and sending 2 ohms to the mono channel which my installer said I could do. If it gets hot I will post another review. You would think a amp of this size and the quality could handle it.

Good highs

Not Very good at delivering bass

My amp is the MRV-F352, it's the same as the MRV-F352 except for a different exterior. I HAVE THE SAME PROBLEMS ar mentioned by the previous message. This amp gets VERY HOT, VERY QUICKLY. I closed off the fifth channel because it already has heat problems running at 4ohms on 4 channels. I've had this for a year now and its limitations are certainly really annoying me. One message said that he was running a single Eclipse 8810 off of the 5th channel, I really doubt it's being powered very well because the 8810 need 500 watts RMS, my friend had the the MRV-F353 and he was running a solo baric which needs 300 watts RMS and that thing distorted. I imagine that Eclipse 8810 to not be playing very loud and even if it did, it wouldn't sound very clean. As for another previous message from before, anything below 0.1% THD is inaudible by the human ear. It is stated that a 1.0% THD by the previous gentleman was inauduble. I recommend that he do his research again. V12 amps carry a 0.3% thd when bridged and this is very noticable. The V12 amps have yet to make an amp that is worth the money. Their Class T tripath amp seems pretty nice, but I've yet to see that amp operate in real life so I have no opinions on that amp except that it is certainly a littly pricey.

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Phoenix

The V12 I am referring to is the MRV-F353. This is a five channel amp, wherein lies it's strength. One amp for a whole system.

POWER!!, HEAT!, and cost.

Let me explain my problems with this amp. It is rated at 30Wx4 and 100Wx1. This makes this amp a great amp to power a whole system. However, the amp's input range is up to 4V, which limits the use of a line driver. My amp was tested to 43Wx4 and 121Wx1. I am not sure how much I believe this since I have the gains turned down on the four channels so that keep the gain maxed on my sub channel. This gives me ACCEPTABLE power for my sub (a single eclipse 10" 8000 series). In the summer heat this amp gets so hot the thermal protection will cut in. I will admit that the clarity of this amp is quite decent but the sub channel is WEAK. I thought this might have been something I was doing wrong. I have talked to a number of installers and all of them have told me the same thing, "happens everytime we install one of those" I was offered an interesting solution that I think I am going to take. Buy a Xtant 3 channel and run the front and rear in parallel.

All and all this amp is ok, for the money it is sad.

According to the specs, the only difference between a V12 and an Expert is a higher signal to noise ratio of 5 or 10 max. Experts look nicer than the V12 series, but I don't think they're worth the extra money. I really don't think that Experts are much better than the V12 series. To me they're the same exact amp except for a slightly higher signal to noise ratio. If a person had to compare a V12 to an Expert of the same wattage and number os channels, I've got five bucks that says that they won't be able to tell the difference. Anyone who doesn't believe me can try it our for themselves and take a look at the similarities in specs on the Alpine website.Experts get a 1 rating cause they perform like the V12 series and the make the consumer pay more just for the name.

Considerably underated output, high S/N ratio

No balanced input, mediocre installation manual

Well, I've owned two Alpine amps for about half a year, a MRV-1002 2 Channel and a MRV-100M mono sub amp.

In terms of high performance amps they are a tremenndous value for their cost, they are not cheap...the 2 channel ran me $550 CAN but their output per dollar spent is higher than most amps on the market save a few from companies like Zapco, Pheonix Gold & Soundstream. Mind you, those amps aren't exactly cheap, a similarly speced Soundstream will run a couple hundred dollars more than my 2 channel.

Output wise the 2 channel is phenominal, it is birth certificated at 145 watts RMS/ channel at 4 ohms, 45 watts about the amps rating (100x2), it puts out over 800 watts RMS into 4 ohms bridged and can even run 2 ohm mono (despite the lack of documentation on this feature), I am not certain but it is probally output limited at this impedance.

One thing to add:
A previous review stated that the amp had a THD of 0.3% at 2 ohms, this is true but it should be noted that that is so small it is inaudible. If you research some information about human audio perception you will find that humans _cannot_ detect THD levels below 1% at even 120 db (it actually is quite higher at this volume) and at volume levels lower than 70db the dynamic range of music is so limited that there is no way you could detect 1%. In actuallity the average human can begin to percieve THD when it approached 3-5%, a well-trained ear can detect lower percentages but not lower than 1%. If you are using this amp for a sub than the THD approached 10% before it can be detected, believe me, more people listen to THD levels this high than you can imaging, if you are putting more than 120% of a subs rated power there is a good chance the THD from the speaker is well over 10%...

It is more likely that the cause of the distortion you are experiencing is due to improperly set gains somewhere in your signal path. I experience this problem myself as my in dash EQ only handles a 2V input but my head unit outputs 4.5V. Noise and distortion can be any component, not just the amp. In fact, I would doubt it is the amp as it accepts an unusually wide band of voltages (.2-5V), higher than 95% of amps I have seen. That and it's signal to noise ratio is over 100db, higher than almost any head unit I can think of (the highest I know of is 110db from one of the Sony ES models). Opps forgot to add:
The difference between the expert and the normal V-12 is the power supply, it is supposed to be less succetable to distortion induced by crappy, inconsitent line voltage. I can't tell a difference (if is impossible to hear sound quality differnces in good amps anyhow, unless they are ADDING distortion, this despite what anyone might tell you...). Either way the expertamps are the higher powered models so if you don't actually pay more for the expert name cause' power handling increases with model number as well (like every other amp, a 100W cost more than a 50W etc) And the amp, previous to what else was stated runs quite cool, they are one of the most efficient amps on the market (hence the lack of fan). Want to see a hot amp? Try a Kicker, they make some great amps but they almost run hot enough to boil eggs (not quitebut you get the idea

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MRV-100M V12 Mono Sub Amp

Just like to add that that the V12 has too high of a thd. At moderate high volumes it's not apparent, but when it comes to turning it up to loud volumes the peace volumes, the 0.08% thd is very noticable. 0.08% is just a bit too high and the sound quality suffers at the loud volumes. 0.08% is just a little bit too close to the noticable 0.1%. I recommend tis amp to people who won't be turning their music up too loud, this amp is good for the tweets, but the mids lag. Overall, decent equipment