Product Comparison: Alpine SWR-10D2 vs FLI FT12A-F6

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General Specifications
About the Product
These redesigned, fourth-generation Type-R subwoofers include several enhanced features to achieve even cleaner, deeper bass extension, faster, more accurate transients and even greater output capability than before.
FLI Active enclosures come with a built in amplifier purpose built to power the driver. With curved metallic heat-sync the amplifier sits neatly into the enclosure finished off with a flared for smoother airflow.
Key Specs
Driver Diameter
10 in.
12 in.
Power RMS
1000 watts
400 watts
4 ohms
4 ohms
Size & Weight
5.88 in.
13.4 in.
9.1 in.
19.7 in.
9.1 in.
16.9 in.
9.92 lbs.
22.05 lbs.
What customers say about "Size & Weight"
Alpine SWR-10D2 2000W 10 inch Type R Series Subwoofer
  • Installed them under the back seat of my truck Dodge Ram. Was easy to connect and perfectly fits.
  • This is the best single 10" sub I've ever heard. Good sizes etc.
  • Super hard сlean hitting bass and still till now people can not believe all that is coming from one little 10 inch sub.
  • Nice build, good materials and quality. Good universal size for any car.
  • It's heavy and and almost too large to be enclosed in a speaker box.
FLI FT12A-F6 12" Car Amplified subwoofer enclosure 1000 Watts
  • Excellent product. The sub is not big for the sound that it gives.
  • Highly recommend this! Not common construction with good size and lightweight.
  • Good performance and great looking! Very easy to lift when I was installing this.
  • It took up nearly half of my little boot space and it has a brilliant appearance appeal.
  • The sub is quietly big. Opening my boot exposes the sub to onlookers so I'll try to cover it with some light fabric to allow air ventilation.
Amplifier Class
Max. Frequency Response
200 Hz
1500 Hz
Min. Frequency Response
26 Hz
25 Hz
82 dB
90 dB
Peak Power
3000 watts
1200 watts
What customers say about "Audio"
Alpine SWR-10D2 2000W 10 inch Type R Series Subwoofer
  • Hardest hit subs I've owned. They bump harder than my 12" and 10" woofers.
  • Exceeded my expectations! I cannot even tell you how loud they are.
  • Great Big sound from a 10” inch speaker. Highly recommend!
  • Nice tight bass and can handle massive amounts of wattage and it never distorts.
  • Pushing them at about 550 RMS. They rattle and shake the box they're in too hard.
  • Be aware that these are afterall just 10s so they won't get down low like 12s or 15s.
FLI FT12A-F6 12" Car Amplified subwoofer enclosure 1000 Watts
  • Purchased this not too long ago, think the sound quality for the price is amazing.
  • Great sub at the best price! It just gives all that I need.
  • So happy wired it up and sounds amazing would defo use this seller again!
  • This sub is brilliant to multiply a thousand times for anyone wanting to upgrade on a budget.
  • Suddenly the bass is decidedly weak when it drops. Don't recommend to buy.
Optimized HAMR Surround, FEA Optimized, Redial Vented VC Heat Sink, Airflow Management System, Concealed Mount Gasket System, 4-Layer Dual Voice Coil, Kevlar Treated Pulp Cone
Wiring Kit Included, Built in amplifier, Curved metallic heat-sync
Frequency, Bass mode, Gain
What customers say about "Features"
Alpine SWR-10D2 2000W 10 inch Type R Series Subwoofer
  • I would recommend these for people who want a lot of bass. These are definitely worth every penny.
  • Bass quality is good and clean. Very loud, very happy with it.
  • A vented enclosure and the output made this sub phenomenal.
  • The material of which the subbuffer is made perfectly complements the overall quality of the product.
  • Out of box these do not come with mounting screws like some other subs do, so you may need to go to your local hardware store and pick up some screws.
FLI FT12A-F6 12" Car Amplified subwoofer enclosure 1000 Watts
  • Great buy item comes with wires so it was up and running within 1Hour, Amazing Sub and Price.
  • The thing literally shake my small Nissan. The sub creates a vibrating effect on my heart and head with every thing shaking around me.
  • The Subwoofer itself has gain, bass and crossover dials which make it a pleasure to listen to after you have set it right.
  • It only worked for 6 months and then the subwoofer got blown and stopped working! not a good quality!
  • I cannot adjust the bass to its fullest because there will be too much vibration and rattles.
Spring loaded
Low-level inputs (RCA), Power connections, High-level inputs
What customers say about "Connectivity"
Alpine SWR-10D2 2000W 10 inch Type R Series Subwoofer
  • I connected the 2 Alpine's bridged together into a 2ohm load so they'll hit harder. It ratttles the inside of my car like crazy!
  • Wired into 4 ohms and I am very surprised how well this sounds. No distortion.
  • Flexible connections two voice coils at 1 OHM or 4 OHM or even 1 single voice coil at 2 OHM, 24 pounds of power, great deal.
  • I have an AUTOTEK AT 1000 amplifier installed in my car and these Alpine sub-buffers complement it perfectly.
  • Sub feels weak when connected to Mtx x500d. I had better some better expectations for that.
FLI FT12A-F6 12" Car Amplified subwoofer enclosure 1000 Watts
  • This connected with aftermarket door speakers is all you really need off and all passengers i've had were amazed with the sound.
  • Perfectly complements the native acoustics - exactly what I was looking for.
  • It's not easy to connect for yourself. Running the power cable from the engine into cabin is the main difficulties and needs tools to lose loads of bits and pieces out of the way.
  • The lack of a power connector, instead of bolt clamps, is a little inconvenient if you need to quickly release the trunk for bulk cargo.
  • Snap connectors are not included, and you will need these to connect to an existing remote wire.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
1 year(s)
Other Information

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