Alpine spx-17 ref vs. Polk momo mmc6500 vs. Kappa perfect 6.1

[DRIFTIR]

Hello to the community. I am in the process of replacing my great 8 year old pioneer premier door speakers with some decent components. I have been researching for the last 2 months on different component sets. Going from store to store to personally listen to the $900.00 sets to the $300.00 sets. After much research I've brought it down to a few sets. Mid bass, power and Bang for buck was what i kept in mind..With that being said it came down to infinity kappa perfect 6.1, Boston acoustic pro 60, Polk audio momo mmc6500 and last but not least the alpine spx-17 ref, i was also impressed with the diamond audio d661a's. But the first 4 are my choices..Leaning more to the alpine spx-17 ref.

Now after all that researching i naturally had to do the same here on the forums regarding opinions on clearance issues custom fitting and ease of installation. Sad to say from my searches not to many people here actually bought the sets im looking at. I was hoping to keep the stock grill and not do much modification. From what i researched so far i see that our doors can actually take 6.75' speakers without the plastic basket. Please correct me if I am wrong. I also noticed some members here had a depth clearance of 2.5 and some cleared 2.7. I understand I have to respect the clearance room or the window going to it's full down position will be impossible. So looking at the 4 choices i broke it down to three.

Polk Audio MMC6500 $129.99 rms 125 4ohms
Speaker Size 6 1/2
Design 2-way
Tweeter Design 1" Dome
Tweeter Composition Silk/Polymer composite
Woofer Composition Lacquered carbon-fiber
Woofer Surround Rubber
Specifications
Sensitivity 90 dB
Frequency Response 43 - 25k Hz
RMS Power Range (Watts) 10-125
Peak Power Handling (Watts) 250
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 1/2
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5 1/16
Top Mount Depth (with magnet boot removed): 1.676"
Mounting Height: 1.109"
Flange Height: 0.951"


alpine spx-17ref $188.00 rms 150 4ohms
Speaker Size 6 3/4
Design 2-way
Tweeter Design Ring Dome
Tweeter Composition ---
Woofer Composition Aluminum
Woofer Surround Butyl Rubber
Specifications
Sensitivity 88 dB
Frequency Response 35 - 40k Hz
RMS Power Range (Watts) 8-75
Peak Power Handling (Watts) 225
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 9/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5 5/16


Infinity kappa perfect 6.1 $199 .99 rms 100 4ohms
speaker size: 6 1/2
Design 2-way
Tweeter Design Dome
Tweeter Composition Anodized Aluminum
Woofer Composition Anodized Aluminum
Woofer Surround Butyl rubber
Specifications
Sensitivity 90 dB at 1 volt
Frequency Response 75 - 23k Hz
RMS Power Range (Watts) 25-100
Peak Power Handling (Watts) 400
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 5/8
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5 1/16

Boston acoustic pro 60 $255.00 rms 125
Speaker Size: 6-1/2"
Design: 2-way Component System
Tweeter Design: Dome
Tweeter Composition: Type M2 Alloy
Woofer Composition: Copolymer
Woofer Surround: Rubber
Sensitivity: 90 dB
Frequency Response: 50 - 22000 Hz
RMS Power Handling: 125 watts
Peak Power Handling: 250 watts
Impedance: 3 ohms
Top Mount Depth: 2-7/16"
Bottom-mount depth: N/A
Cutout Dimensions: 5-5/16

I'm trying to figure out what's going to fit and clear with minimal cutting and modification? I want to keep the stock door grill. I am leaning towards the alpine spx-17 ref as they had excellent midbass and were almost as clear and bright as the kappa's for me. The bostons were awesome and sounded like minature subs..Also great but not that much difference to pay the extra $ in my opnion. Thank you so much for reading and for your time guys.

Ray.

[3000gtskickass]

i personally would go either alpine or boston.. infinity just sucks expecially their subs i blew 2 400 wt 12in infinity reference subs on a 400 wt audiobahn amp

[DRIFTIR]

Yeah I been leaning towards alpine or boston but i'm a bit uneasy of the mounting clearance. Hopefully I can get some audiophiles to give me some recommendations.

[O_ROD]

I personally like a smooth and laid back high end, with punchy mid bass and an extended low end instead of punchy bass.

My favorite affordable sets are the Diamond Audio C6, Pioneer Premiere series.

The best and not so affordable would be the Alpine F#1's and the Seas PS165's.

Have fun

[Dave57]

Looks like the Alpine are 75w Alpine Electronics of America, Inc. - SPX-17REF

Keep in mind. They just don't sound the same in the car too. Especially when underpowered. Don't forget; The doors need inner and outer soundproofing with a dampening pad in back of the mid.

We've had a 91,2,3,5,7,&9 3k's & Been around long enough to know who posted the depth... and it's wrong, all will fit fairly easily. All will need the spider grill pulled from the door grills just use a side cutter and then trim the infinity emblem pins if you have them. I've installed some 7" D971's and the grills still fit and the speakers would have cleared without any mounting surface. They just needed a mounting surface to mount them securely.

[DRIFTIR]

Thanks for the help guys. Dave thank yos a bunch. I actually went through a few of your posts in my searches and tried to soak up some of your knowledge in the area. I"m glad you answered me personally. That's awesome. So Dave if you don't mind me asking what would your choice be from my decisions from best to worst. REading through your posts you seem to know a lot on the audio side.

Thank you.

[Dave57]

My hearing loss is significant and it takes out the ability to hear highs correctly. So my tastes differ.

I'm not a polk fan at all and the bostons I've heard were short on the bass. They haven’t made 661's for a few years. The 661's I was lucky enough to get already in the car I really liked, but they were the older eaton version. Infinity is infinity. I haven't heard the alpine yet. I have a set of DLS Ultimate I never installed. Mostly because I wanted to try 200w/ch up front and the bass a 7 inch would possibly give I put the 971's in.

ALso DJ was selling focals for a good price.

[DRIFTIR]

Awesome. I see your for diamond audio all the way. I actually have some diamond audio M351's sitting here that were given to me 5 years ago as a gift. My buddy swore by diamond audio. But i never game them a chance. I noticed u mentioned the alpines only have 75w and they soind diff. in the vehicle. Did u mean you think there a little weak in terms of power?

Thanks

[wraith]

I have Boston Pros-love em

[Dave57]

Originally Posted by DRIFTIR

Awesome. I see your for diamond audio all the way. I actually have some diamond audio M351's sitting here that were given to me 5 years ago as a gift. My buddy swore by diamond audio. But i never game them a chance. I noticed u mentioned the alpines only have 75w and they soind diff. in the vehicle. Did u mean you think there a little weak in terms of power?

Thanks

If you like the sound go for it.