Polk Audio PA200.4 4-Channel Bridgeable Power Amplifier Review
Tuesday, September 28, 2010
by Vera Smith
- Leave a comment
Average Reviews:
(More customer reviews)I purchased this Polk Audio PA200.4 amplifier as part of an (initially) reasonably priced stereo upgrade for my 2006 Prius.However, when I received and installed the unit, I found that it introduced a noticeable (and extremely annoying) hiss into my system.This noise was present in all of my speakers (especially the tweeters) at any volume even when the amplifier wasn't connected to any inputs.Thinking that it was a problem with the particular unit that I received, I exchanged it for an identical unit and had the same issue.Eventually, I replaced this Polk amp with a nicer (and more expensive) JL Audio XD400/4 amplifier, which provided much cleaner and more powerful output in a smaller package.I understand that these amps are not directly comparable due to their price difference, but my experience has been to avoid the bottom-line amps from any manufacturer.I have been enjoying a more expensive Polk amp in my other car for the last few years, so I don't suggest that Polk amps all have this issue.However, the PA200.4 is certainly a dud in their product line.*Note: I should also mention that the coating on the rails of this Polk amp seems to corrode over time such that a white powdery finish forms at the surface.The first unit that I received had this problem worse than the second, but it was apparent in both.Although this "corrosion powder" looks like it will brush off, it is impossible to remove completely.
Click Here to see more reviews about: Polk Audio PA200.4 4-Channel Bridgeable Power Amplifier
Product Description:
With multiple configurations available, the Polk Audio PA200.4 power amplifier is ideal for audio setup use. 4-channel, dual bridge-mono (2-channel), or dual simultaneous stereo/mono operation provide a variety of configurations and setups: 4-channel for front and rear speakers; 2 speakers and a sub; as 2 subwoofers; or as 2 subs and 4-channels in passive-tri mode all allow you to set up your system the way you want to. Cast aluminum textured end caps for optimized heat dissipation and hiding of connectors. Solid aluminum logo and model panel back lit in cobalt blue. Remote Subwoofer Level Adjuster included.
Want to buy Polk Audio PA200.4 4-Channel Bridgeable Power Amplifier at other amazon sites? Click the corresponding icon below:
LEGACY LA1400 2000 Watts Mono Block MOSFET Power Amplifier Review
Sunday, September 26, 2010
by Vera Smith
- Leave a comment
Average Reviews:
(More customer reviews)this product works fine has all the things it sees. the rms is only 275w x 1 2ohms!! so its really not enough for any good sub-woofer.
Click Here to see more reviews about: LEGACY LA1400 2000 Watts Mono Block MOSFET Power Amplifier
Product Description:
2000W x 1 Output @ 2 Ohms Mono Block Subwoofer Amplifier2 Ohm StableMOSFET Power SupplyVariable Low-Pass : 40 Hz-250 HzVariable Input Level (Gain) Control : 6V-200mVVariable Bass Boost : 0~+18dBVariable Subsonic Filter : 10Hz~100Hz, 24dB/OctaveSub Sonic SwitchThermal / Overload / Short Circuit ProtectionSoft Turn On/Off Phase Control 0-180 degreeCustom Terminal Block for Speaker ConnectionPower & Protection LED IndicatorLow Level RCA Input : 10K OhmsLine Level RCA OutputFrequency Response : 20 Hz-250 HzSignal to Noise Ratio: >90dBTHD:0.1 %2x40 Amp Maxi Type FuseSlim Size Amplifier Design For Easy InstallationDimensions: 10.74"W x1.69"H x 12"L
Want to buy LEGACY LA1400 2000 Watts Mono Block MOSFET Power Amplifier at other amazon sites? Click the corresponding icon below:
Polk Audio PA500 4 4-Channel Bridgeable Power Amplifier Review
Tuesday, September 21, 2010
by Vera Smith
- Leave a comment
Average Reviews:
(More customer reviews)Love these amps.I was using Sony before but not any more.These amplifiers are clean sounding,well built and are capable of many applications.
Click Here to see more reviews about: Polk Audio PA500 4 4-Channel Bridgeable Power Amplifier
Product Description:
The Polk Audio PA500.4 4-channel power amplifier packs an incredible amount of power into one single unit. Use it for 4 main speakers, a bi-amped component set, or 2 mains and a subwoofer. The choice is yours. Cast aluminum textured end caps for optimized heat dissipation and hiding of connectors. Solid aluminum logo and model panel back lit in cobalt blue. Light Bar/Fan Output-Connect an optional LED light bar or cooling fan for custom installations. Remote Subwoofer Level Adjuster included.
Want to buy Polk Audio PA500 4 4-Channel Bridgeable Power Amplifier at other amazon sites? Click the corresponding icon below:
