Overall, I am very happy with this purchase and I can only repeat what others have said, they are a terrific value!

But for a good sized home room, they work like a charm, a great value for the price.

I have always looked for the best sounding speakers I can get for the best value

This can be important if one is using an amplifier that isn’t rated for high wattage, or for those looking for really loud levels for movies or music, as well as those sitting farther away from their speakers.

The build quality was on par with a superior system and the value of it all was incredible!

They produce great imaging and the mids are really nice

These pointed feet screw into the bottom of the speaker, firmly situating it on the floor which improves bass response and imaging

Excellent stereo imaging, accuracy and tight bass with audiophile quality amplifier

Clarity and imaging for each instrument and distinct imaging space for vocals

This can be important if one is using an amplifier that isn’t rated for high wattage, or for those looking for really loud levels for movies or music, as well as those sitting farther away from their speakers.

, if you have a cheap amplifier, and bad, if you have spent more than $3,000 on it (update: my HK 7550 was still worth the price with the M12s; end of update)

I enjoyed the R5Bi bookshelf speakers because of all the subtle and refined characteristics they have over the R55Ti towers (top end, a pristine upper midrange and being less colored or more neutral).

The R5Bi bookshelf speakers have a more open and clearer top end.

The point source KEF Uni-Q drivers provide a smooth and detailed frequency response along with a tight, focused image and the larger 6.5" Uni-Q of the Q300 allows for better low end response then the Q100's 5.25" driver without stepping up to the larger Q700 tower

From the first moment that I heard Martin Logan products in my home there was a sense of immense clarity over my previous system (a top end system from a respected vendor).

This can be important if one is using an amplifier that isn’t rated for high wattage, or for those looking for really loud levels for movies or music, as well as those sitting farther away from their speakers.

I purchased this set during one of Amazon's Gold Box sales for $499 (I thought that was a great deal until I heard they were selling them at one point for $350)

If your system can handle them, these are one of the best deals going on high end speakers right

When I purchased these speakers they were just under $350 and at that price point they are a great deal.

Awesome speakers and at the sale price there asking now, probably one of the best deals in a bookshelf speaker you will ever find

But don't get me wrong, the sound quality on these speakers is really good.

They are of course also excellent for pure music with a clear, detailed sound quality not to be missed

I had to return the first set of speakers due to poor sound quality.

I wanted to go with a smaller speaker set but they were either too expensive or they lacked the quality of the 12s

Compared to the 1005.2 this system has a way richer sound quality

My wife and I found the clarity to be excellent and made understanding vocals, and thus following conversations, easy

However, I found myself preferring the pristine clarity and more openness of the bookshelf speakers for both movies and music, especially for music

They can get as loud as I want without losing any clarity or balance

The clarity is amazing -- I am hearing the plucking of strings, whether orchestral or guitar, with such full dimension that the sound seems to reverberate in the room

Clarity on these is amazing and they seem to sound even better the louder they go

As I am unlikely to spend $3.5k on electrostatic fronts (haha, I don't even have the space for them in my small living room), I am sticking to the M12s, especially because I am convinced ML replaced them with an inferior product at a higher price

I would defiantly recommend this product to anyone at the price off $499

This gives me time to try multiple placement and toe-in scenarios and to check out sonic characteristics, soundstage attributes, and overall sonic appeal of speakers.

As you can see above, the tall R55Ti’s hardly overwhelmed the small R5Bi’s.

The R55Ti’s are more sensitive than their R5Bi little brothers, which one would expect with more drivers and larger drivers.

These speakers have the crispest highs and best soundstage of any sub-2500 dollar speakers I have heard

Accurate response..nice soundstage and suprisingly good lows.

Then again, I wouldn’t recommend any bookshelf speaker and not many tower speakers without integrating a capable subwoofer.

The bass response is great although I definitely missed the subwoofer, but was nevertheless surprised at the depth of the lower registers

Once satisfied, I incorporate my subwoofer and listen to music for a few more days.

The subwoofer sounded great with songs like In My Feelings from my Spotify account

As you can see above, the tall R55Ti’s hardly overwhelmed the small R5Bi’s.

Not worth spending anything close to a $1000, many systems can be had for under $500.

The build quality was on par with a superior system and the value of it all was incredible!

in summary, great system for less than $500, but for a $1000

As you can see above, the tall R55Ti’s hardly overwhelmed the small R5Bi’s.

but the system is nice for the price and fills up the room.

The Q300 drivers are only a bit larger, at 6.5", but give richer, deeper bass.

The sound was as good as it gets from the technology employed in the speakers, but the bass actually deepened after burn-in, which upset the sound balance by my standards

Of course, the inherent weaknesses (directionality, somewhat uncontrolled bass b/o the ported design, and a lack of polished, high treble) remained, but I still believe that the M12 is possibly the best choice for the price

The highs are the best I have heard and they have quite good bass for a 6.5" speaker.

As the bass port is in the back, 2-3 feet between the speakers and the wall behind them prevents boomy/unpredictable bass response