I have the Polk MM651's paired up with a Rockford Fosgate PBR300x2 amp installed on my HD Street Glide and am pushing over 150 watts per channel. The speakers sound fantastic in a 2ch motorcycle environment and have more than enough volume and clarity on the road. I don't believe you will find a better 2ch Harley set-up than this for the money!

Ordered this speaker for my HD Street Glide, I wish these were the first one I bought, the sound is very clear and crisp compared to the Infinity Kappa 60.9c. MM61 is lighter and produce better bass.

I love Polk products for their sound quality and value. These coaxes have a 2.7ohm imp to help draw more power from your amp, have high rms handling, a directional tweeter, are marine certified, come with everything you need to install and have a fantastic outboard in line crossover. The result is a great sounding speaker with an incredible value. Polk always gives you great quality and more bang for your buck!

These are the best sounding speakers out there for the money BAR NONE! These were installed in my 2007 Harley Davidson bat wing fairing with the Rockford Fosgate PBR300X2 amplifier. I'm hearing notes to songs I've been playing for years that I never knew existed at 70 MPH! I've had much more expensive speakers in my bikes over the years and these outperform every last one of them! If you ride a Harley and you are on the speaker merry go round. . . Go out and get these now!! Make sure you amp these speakers with a 2 ohm compatible amp pushing at least 50-75 RMS as they are 2.7 ohms. You won't be disappointed!

I just finished installing these and WOW! Every sound, every note is crystal clear... I'm driving 160 watts per channel to these speakers and WOW! At first i was going to get the 6x8, but the RMS was higher for the 6 1/2. The 6 1/2 are 100watts RMS, so i just bought the speaker adapters. Slight mod, but it came out perfect. These are the best speakers i have ever had and i listen to all kinds of music. I sat in the driveway and listen to 32 CDs, from rock, hip hop, country, Jaz, R&B and Go Go. Just an amazing sound... Thank you Sonic!!

Very, Very good speaker, krystal clear mids and highs, they sounds amazing in my 96 Tacoma extended cab.

I had these along with the matching 6 x 9s. All around great sound - high sensitivity and power handling. Very clear highs and as capable as anything I've owned in a 6.5" for bass.

I would not recommend because after 2 weeks in my truck the outside rubber pieces of the speaker came apart and i had to change them out with morel spekers and it cost me money.

I bought these to install into my Polaris rzr into the factory Polaris pods. I had to trim the openings of the pods a bit to make them fit but running off of deck power they are plenty loud. They have been covered in mud an snow. I have cleaned them with indirect spray from a pressure washer. They still look and sound great.

Great sound from a small magnet 6 1/2. Really delivers on the low end and great clarity on the mids & highs.

Small magnet size also allows for installation in tight spaces. Highly recommended for a coax install.

These are incredible, so smooth and accurate, my music selection is from hard rock to classical and these baby's perform!! I have these in the rear doors and the mm6501 components in the front and the punch these deliver is hard hitting if you crank them and mellow and full stage for my classical music at a moderate volume. I love these speakers and are my first choice from now on!!! I highly recommend these speakers, the quality is all Polk and as in the name "Mobile Moniters" you will not be dissatisfied. Rating: FIVE STARS They are worth the price!!and they have individual cross overs also to help with the sound image.

Son installed these in his boat. Great sound quality.

With these speakers. They handle alot of power and sound great while doing it. these are some of the best sounding 6.5's that I've had.

I bought these speakers for my 99 Accord LX 4 door. Warning they will not fit without modification to your speaker grille in your door. I had to cut out most of the speaker grille to get them to fit. I used a 3/4 inch plastic speaker spacer so the magnet wouldn't hit the window. You probably could use a 1/2 inch spacer but you will still need to cut your speaker grille out. These speakers sound better and throw out a lot more bass then the stock speakers. I current only have them wired to my Alpine cd player so I'm sure they will sound a lot better wired to an amp.

Bought two pairs of these and they sound great and get loud. I have them ampd.

These sound really good , i suggest using an amp to power them to get the full potential. 100 watts per channel is all you need.

Its a real amazing speakers
high quality POLK Audio product

strong buy

For the money there ok. I got rid of them and got the momo 6.5 and these suckers freaking rock

100 watts RMS handeling! These speaker are being powered by 100 watts per channel and I only have the gains up 1/3 of the way and it's loud. My front stage keeps up with the subs. I only wish that the subs were a little louder however, my hearing is worth more than 130db in my car. You should try them out.

Installed these in a Beneteau Flyer 12 (Cabin Cruiser) to replace the Pioneers that came from the factory.

These are absolutely fantastic. The sound is crisp and clear, with very balanced mids and highs. The bass response is good at first, and gets much better as the speakers are broken in. They sound better than the Focal Access 6.5'' my friend put in his Antares 12.

The carbon composite basket and high quality materials make these speakers a good bet for a boat (the inside portion at least) as they will not degrade with the salty air. They look absolutely amazing too.

The only problem was that the crossovers where difficult to place. I glued them to the inside bulkhead near the speaker using silicone glue, which secures them with no problem.

These speakers really started rockin after a short break-in period. Pushin them with the Arc 125.2 mini.

I installed these in my new boat which had 3 pairs of them driven by an Alpine 4x 125 digital amp. They are some of the cleanest 61/2 in speakers I have ever heard I would buy them again they are awesome

I bought 3 pairs of these to put in an open bow boat to replace the stock Sony marine grade speakers. Although I did have to pilot drill new mounting holes on each speaker, they fit perfectly into the boat's speaker cutouts. Not too tight, not too loose. (I had Alpine type R's in the last boat and they were a very tight fit) They look and sound great in the boat! Remember that you'll need to also find a place to mount the external crossover block which can be tricky in a boat. The open air environment of a boat requires that a system be able to play loud, and these achieve that well. I run them down to about 100 Hz and I have them matched with a 12 inch sealed Alpine type R. I have about 75 watts RMS running to these speakers through their own amp. I would highly recommend these speakers for marine use.

Great sounding two way components. Can handle the power well and sound great at any volume

I just installed these speakers in today and they sound really clear and good mid bass ..these speakers are a really great buy and i would buy again

Great value and crystal clear sound, to match high amp output

I got these thinking they were more than they are. They are ok but nothing more.

I purchased these for Motorcycle 05 Ultra Classic Harley, and used the Loud Lids amp set up OMG the difference. You can compare it to August in Arizona and Winter in the North Pole, From stock to this setup there is that much of a difference. Yes I have tried 4 other companies used there speaker but these are Quality (Products) not just some B.S. you will notice a difference.
Oh yeah, and I'm pushing 425 watts out of them with NO DISTORTION

Great sound and value. Very satisfied with this product.

Product was new and what I expected.