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amp suggestions

Discussion in 'Audio' started by 85k5blzr, May 24, 2001.

  1. 85k5blzr

    85k5blzr 1/2 ton status

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    What is a good amp that can put out 300 RMS watts @ 2ohm without getting too hot and actually work well for 2 Polk EX II 12"s that are rated 400 max and 150 RMS? I'm looking for something that is easy on the pocketbook, but will get the job done nicely. Just picked my subs up, box, and 3 year warranty for less than $300!

    K5 just upgraded to rig status! [​IMG]
     
  2. 91gmcjimmyCH_IL

    91gmcjimmyCH_IL 1/2 ton status

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    I would not run an amp at two ohms. some run better and safer at two ohms but in my experience blow fuses and get extremely hot. get a more powerfull amp and run them and higher ohms.
     
  3. Prembird

    Prembird 1/2 ton status

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    why would you want to run your subs at 2 ohm??? it will make the amp run hotter then it needs to... if you have 2 4ohm subs and wanted to run them parrell to get your 2 ohm load i would suggest you run them in stereo off the amp... get a good 150 x2 atleast to do it... or get a 4 channel and bridge each side down... as for the amp you should get... in a moderate price range... pioneer, jbl, etc.. (you get what you pay for) shell out a couple extra bucks and get something nice... it will last longer, play cleaner, and you usually end up with a better warranty on it..

    Prembird

    If it aint loud then turn it up!
     
  4. Hathaway

    Hathaway 1/2 ton status

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    A Dclass mono amp will work fine with your 2ohm load. Dclass amps are more efficient (ie the amp won't get as hot at a 2ohm mono load as an AB stereo amp will bridged to 4ohm mono) and the footprint of the amps is usually smaller. I personally don't like how subs sound when run in stereo.

    Rockford Fosgate makes the 200a1 which I've heard does close to 300x1 at 2ohm, I think DEI might make a mono amp that does about 300x1 at 2ohm. Just look around. I think your on the right track rather than getting a 2 channel amp and running them at 4ohms....

    Dan, '86 K5, 5.0L v8, NP208, TH700R4, open 10bolts front and rear, 3.43gearing, K&N filter, 31x10.50R15 Trailhandlers
     
  5. 85k5blzr

    85k5blzr 1/2 ton status

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    I was thinking about a Sony Xm1502 SX. THe specs seem pretty good...760W max power (380W x2 @2O ) 150W x2 into 4O , 20-20kHz, at 0.04% THD 190W x2 into 2O , 20-20kHz, at 0.01% THD 380W x1 into 4O , 20-20kHz, at 0.01% THD Variable 50-300Hz Hi/Lo-pass filter High-Current MOSFET Output Stage MOSFET Power Supply Line-level and Speaker Level Inputs Gold Plated Recess Connectors Frequency Response - 5-50,000Hz (+0/-3dB) Harmonic Distortion - 0.005% or less at 1kHz, 4 ohms Speaker Impedance - 2 - 8 ohms stereo, 4 - 8 ohms bridged Input level adjustment range - 0.2 - 6.0 Volts (line level), 0.4 - 12.0 Volts (speaker level) Power Supply Voltage - 10.5 - 16 Volts Current Drain - At rated output: 40 Amps at 4 ohms, remote input 2 mA Chassis Dimensions: 358 x 50 x 264mm (w/h/d) (14-1/8" x 2" x 10-1/2")

    Anyone ever heard one or seen one in action??? If so what are your opinions?


    K5 just upgraded to rig status! [​IMG]
     
  6. im_2gr82h8

    im_2gr82h8 Registered Member

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    from what my friends say (they work at 3 different sterio shops in town, goodguys, cartoys and foss) the sony amps arn't all that they hype them to be. Shure they look big and impressive but if you pop the cover you will see that there is a lot of wasted space inside. As for 2 ohms, as long as you get a good amp you will be fine. I have been running 2 amps at 1 ohm for 3 years and have had no problem. And, yes i do work them hard.
    I personally have always liked Rckford power series amps for subs. I ran mine at .25 ohm for a couple of months with no prob. The only reason im not anymore is it was way to loud, and my charging system had no chance of keeping up with the power draw.
    In other words, go with a good amp like RF or JL and you will have no problem running at 1 ohm little lone 2 ohms.
     

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