Polk MM651 vs J&M vs Rokker vs Other "High End" Speakers
#51
04-18-2012, 08:19 PM
#52
04-18-2012, 08:38 PM
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#53
04-18-2012, 09:06 PM
I've got the rockford fosgate power series 6.5's AND the polk mm561's (powered by the RF300PBRx2). Sound quality wise they were very similar- maybe some better imaging with the polks (which I was surprised to notice on the bike). I replaced the RF's with the Polks (for the marine grade certification) but hurt a Polk on my way back from bikeweek (after probably 30 hrs of listening time cranked up on the interstate. One of the woofers started working intermittently.
Now- here's the thing. When I called Crutchfield and told them I was having a problem with one the speakers the guy asked me for my order number and said "no problem- sounds like the voice coil is coming apart. I will send you a new one. When you get it, just send me back your bad one." They even emailed me a pre-paid UPS form to send the failed speaker back no charge. They sent a brand new set of speakers to me so I sent them my original pair back. No muss, no fuss, didn't cost me a dime in shipping. That is amazing. When I used to run the J&M's and would have a failure they would not send a replacement until they recieved the bad one at their dock and then had at least a few days to look at it. I lost a speaker right before a cross-country trip one time and they refused to work with me. I had to put my factory speakers back in because I couldn't get a J&M replacment for a week or two while they diddled around. I got sick of that and stopped buying J&M. I don't know if their customer service still blows but I got my fill of it and won't spend any more of my money there.
I've got the RF's in now....will probably run them a while before putting the polks back in. I'm tempted to put the polks in my truck - I have a full set of polks in there now but its a cheaper series (dB).
Now- here's the thing. When I called Crutchfield and told them I was having a problem with one the speakers the guy asked me for my order number and said "no problem- sounds like the voice coil is coming apart. I will send you a new one. When you get it, just send me back your bad one." They even emailed me a pre-paid UPS form to send the failed speaker back no charge. They sent a brand new set of speakers to me so I sent them my original pair back. No muss, no fuss, didn't cost me a dime in shipping. That is amazing. When I used to run the J&M's and would have a failure they would not send a replacement until they recieved the bad one at their dock and then had at least a few days to look at it. I lost a speaker right before a cross-country trip one time and they refused to work with me. I had to put my factory speakers back in because I couldn't get a J&M replacment for a week or two while they diddled around. I got sick of that and stopped buying J&M. I don't know if their customer service still blows but I got my fill of it and won't spend any more of my money there.
I've got the RF's in now....will probably run them a while before putting the polks back in. I'm tempted to put the polks in my truck - I have a full set of polks in there now but its a cheaper series (dB).
+1 Crutchfields customer service is A+..... I love my Polk MM651's
#55
04-19-2012, 08:17 AM
Outstanding HDF Member
In simple math terms,....................the Polk has 3.3 times more distortion than the Alpine.
How this converts to the final product out of the speakers ........... I don't know.
Polk does make some good stuff though.
Not always , but usually...........you get what you pay for. The Alpine is twice the cost of the Polk. Is it twice as good ?? I doubt it. Is it better. I surely think so.
Either way,...........it should sound good on your bike. I have 2 of the Alpine 600watts stacked, so I have 1 dedicated 150 watt channel for each speaker, ( 8 ).
Good luck with your system !
#56
04-19-2012, 09:22 AM
Ultimate HDF Member
I had the Polk DB series 6.5s and traded them out for the MM series, the DBs are good, but the MMs sound better, much better mid range and high which you hear more on the bike anyway. Crutchfield has been running a sale on the MMs for awhile, a couple of other places have them slightly cheaper, but Crutchfield has great service so I went with them. Remember the MMs are 2.7 ohms, they will work with a 4 ohm amp, but I would advise having an amp that is 2 ohm stable.
#58
04-19-2012, 02:27 PM
#59
05-15-2012, 08:09 AM
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