See all parts that fit your 2011 A5
800W Max, Class D Monoblock Amplifier
PA Series Class D Monoblock Car Amplifier • 200W x 1 chan. @ 4 ohm • 300W x 1 chan. @ 2 ohm • 400W x 1 chan. @ 1 ohm • 800W x 1 chan. Max • 1 ohm stable • Preamp RCA outputs
Learn more about the pa4001
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
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480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
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600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
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360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
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600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System
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250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers
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330W Peak (110W RMS) 6.5" Club Series 2-way 3-ohm Shallow Mount Coaxial Car Speakers
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600W Peak (300W RMS) 6.5" PRO Series Full Range Coaxial 4-ohm Speakers
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600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers
$49.99
List price $59.99
PA Series Class D Monoblock Car Amplifier • 200W x 1 chan. @ 4 ohm • 300W x 1 chan. @ 2 ohm • 400W x 1 chan. @ 1 ohm • 800W x 1 chan. Max • 1 ohm stable • Preamp RCA outputs
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Infinity Reference 10001A (AMPRF10001AAM)
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Manufacturer:
Model Number:
PA400.1
Weight:
11.50lbs
Internal SKU:
pa4001
Internal Product ID:
13579
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Great amp!
Bought this amp (PA400) to match the polk dxi 12" dual voice coil sub. Built custom enclosure based on polk's specs and wired to 2 ohms and can't believe how good it sounds. Just one sub and it has clean, tight and thunderous bass reproduction no matter what music i listen to at all volume levels. For the money, I have never heard anything that comes close to this. Great job Polk Audio!!!
8 found this helpful
Perfect, perfect, ...
Compact amplifier PA400.1 is perfect solution in this category. I listen only music in my car. I am not "alegoric car" from Rio de Janeiro!
8 found this helpful
Looking 4 a 1 ohm stable amp?
Looking for a one ohm stable amp. 400watts rms @ 1 ohm for my JBL 12" power series (Block-beater BTW! :) This amp is a perfect match. POLK Audio is #1 next to JL, Crossfire, JBL, MTX, Sundown, Audioque, Digital Designs, RE Audio, and such. Can't go wrong never overheats Clean power all the time.
7 found this helpful
good amp
Good amp works great not many problems yet and ive owned it for about 7 months. Ive got it in a crown vic police interceptor powering a pair of kicker L3 12's and feeding it with signal is a Kenwood KDC-HD548U. Sound is great. However on the head unit the volume rang is 0 - 35 and it sounds best up to 27 but when i play a song with loads of bass and i turn it up to around 32 the amp turns off and i have to turn it back down and wait around a minute or turn the headunit off and back on again not sure if thats the headunit or the amp. Other than that the amp is great also keep in mind that different amps reproduce bass in different ranges better than others like in this set up the mid and higher bass is loud and clear but you get around the subsonic range and then it seams like its struggling to reproduce the bass.
5 found this helpful
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NVX XIV25 V-Series 2-Channel RCA Cable
16.4 ft of V-Series 2-Channel RCA Audio Premium Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology
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25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire
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16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)
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200 Amp Relay Isolator (BIR200)
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500 Amp Relay Isolator (BIR500)
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True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block
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Belva Nine Function Digital Multimeter
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
