Bash 500S Digital Subwoofer Plate Amplifier 500W RMS

Brand:| Model: 500S
The Bash 500 watt Subwoofer Amplifier offers the combination of clean output and high power which makes the BASH amplifiers some of the best sounding subwoofer amplifiers on the market.
A restocked/refurbished, or Open Box unit of the product is available -- see it now
  • High power output in a compact, lightweight design
  • Speaker and line level inputs for connection to any stereo
  • Limiting circuit prevents audible clipping and protects woofers
  • Auto On/Off detects an input signal eliminating the need to power the amp on
  • Phase reversal switch allows for optimal room placement
Part # 
Weight: 6 lbs.  
List Price$399.99
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Buy 2-up$235.55
Part # 300-752
Qty:  EA
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Product Details

Bash 500S Digital Subwoofer Plate Amplifier 500W RMS

BASH patented subwoofer amplifier technology was developed to offer extreme amounts of power without the wasted heat and energy of traditional amplifier designs. Add to this an intelligent circuit design, and you get benefits such as extremely low distortion and high signal to noise ratios. The combination of clean output and high power makes the BASH amplifiers some of the best sounding subwoofer amplifiers on the market. Features: 50 to 150 Hz low-pass crossover, 0° or 180° phase, line level inputs, speaker level inputs, line outputs, master on/off switch, auto on.

• 500 watts RMS @ 0.5% THD into 4 ohm load
• Signal to noise ratio: 105 dB (A-weighted)
• Dimensions: 12" W x 8" H x 3-1/2" D
• Cabinet cutout: 11" x 7"
• Line-in and high-level in crossovers: Adjustable 50 to 150 Hz, 12 dB/octave low-pass crossover, a fixed 230 Hz, 12 dB/octave low-pass crossover, and a fixed 330 Hz, 12 dB/octave low-pass crossover
• Two stacked LFE-in crossovers: A fixed 230 Hz, 12 dB/octave low-pass crossover, and a fixed 330 Hz, 12 dB/octave low-pass crossover

Bash 500S Digital Subwoofer Plate Amplifier 500W RMS
  • BrandBash
  • Model500S
  • Part Number300-752
  • UPC844632001390
  • Product CategorySubwoofer Plate Amplifiers
  • Unit of MeasureEA
  • Product Rating
    (79 Reviews)
  • Weight6 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Bash 500S Digital Subwoofer Plate Amplifier 500W RMS
in the Subwoofer Plate Amplifiers product category.


Bash 500S Digital Subwoofer Plate Amplifier 500W RMS
Bash 500S Digital Subwoofer Plate Amplifier 500W RMS is rated 4.2785 out of 5 by 79.
Rated 5 out of 5 by from Very user friendly!I bought this amp for the Knock-Down MDF 1.5 cu. ft. Subwoofer Cabinet & 12" Infinity sub I already had. Wow! This thing packs a punch!
Date published: 2015-03-04
Rated 3 out of 5 by from SQ far from good but it works and does rated powerOwned for over a year now and it's still working. Had to replace one of the fuses, no idea why it blew. Upgraded the speaker wire and terminals going onto the board. I've used it on a few different subs/enclosures and it is loud and definitely does rated power, if not a tad bit more than rated power.The limiter circuit, as a previous reviewer stated, needs some work, or needs removed completely. It absolutely kills every bit of sound quality this amp may have. The limiter is constantly adjusting itself not only at high volumes but medium volumes as well. This leaves me constantly adjusting the "volume" knob for different media, switching between movies/music etc. The limiter is not as noticeable on movies, but music is another story. This amp is not for music. The limiter also gives the amp just a plain muddy sound. It's not tight, nor accurate, nor even sounding, no matter the enclosure type. I've tried sealed, ported, and T-line boxes, and even the sealed enclosure sounded muddy.The 6dB slope crossover leaves MUCH to be desired. Even with the crossover set at 50hz, voices and midbass still come through, how much they come through depends on the enclosure and my T-line box is what brought me to notice how weak the crossover is. With my T-line, it's almost as if the crossover isn't even there. And yes the LFE switch is switched to crossover so it's not the LFE switch, and there is a difference between LFE and crossover, so it's just a really really weak crossover. A selectable 6dB/12dB/18dB/24dB switch is needed and would be perfect.I dabble between home and car audio and consider myself an "audiophile"/SQ kind of guy, and usually home audio manufacturers have the sound quality enthusiast in mind. Not the case with this amp. My car subwoofer amplifier is leaps and bounds ahead of this amp in terms of sound quality and it puts this amp to shame. It has selectable 12/18/24dB crossover switch (yeah, they didn't even bother with the useless 6dB crossover), adjustable bass EQ frequency and level, a high damping factor, and no darn stupid clip limiter, which makes for a darn good sounding amplifier. Take notes, BASH engineers.I gave this amp 3 stars because it still works and it does rated power. Those are the only good things about this amp. I suppose it looks nice as well. The build quality is meh. The sound is meh. The power is good.
Date published: 2015-01-11
Rated 5 out of 5 by from Bash 500sNice plate amp. 1/4 turn on the power and the house shakes. Great price point and value. 300s is probably power enough for most sub applications in home theater, but all the headroom makes a person giddy. 500s if the neighbors aren't cool. 185 dollars. Definite loud power.
Date published: 2014-06-23
Rated 3 out of 5 by from Meh. Limiter circuit limits sound quality too.Lots of power, but you can hear the current limiter working, even at moderate levels. Transient punch is reduced to transient smoosh. This is compared to running the same sub on an old Adcom GFA-555. That may not sound like a fair comparison, but I am referring to the sound at moderate levels that should not tax either amp.Also, after about 18 months, mine blew a pair of mosfet switchers in the power supply. I've repaired it, simply by replacing them, but in the process, I observed that there is very little overkill in this design. It's components are running near their limits. The capacitors are pretty cheap. Very nice circuit board though.Ultimately, this is built just like a mid-range computer power supply.Meh.
Date published: 2014-04-02
Rated 5 out of 5 by from Polk Audio PSW 1200I have a Polk Audio PSW 1200 which is the biggest home audio powered sub they ever made. Dual 12" subs weighing in at 110 lbs. I bought this thing new and had it now for about 10 yrs. The amp went out in it and Polk has no replacements so I had it repaired which lasted about a yr. Researching a comparable replacement amp that could push two 12" s I took a chance on this amp. This amp is slightly smaller than the original Polk amp so I made a plate out of wood and mounted this amp into it. With this amp it put this sub to a new level. The amount bass this sub puts out now far exceeds the original set up from Polk. They cut themselves short by under powering the amp they put into it. I mainly use my system for home theater and it's like a new piece of equipment. Last night we watched Polar Express (yes, it's Christmas eve) and when the train came down the road I thought it was coming through my house. Very impressed and glad I resurrected an old friend by purchasing the Bash 500. Awesome job!!! My neighbors may not be as happy as I am though.
Date published: 2013-12-24
Rated 5 out of 5 by from Excellent!For my application this amp seemed to be my best choice for overall diversity. I run a coax from LFE on a Technics 5.1 receiver, sounds great so far. It's home to a custom 3.75 CuFt. Ported box(including bracing and internal weighting#. The box also utilizes a parts express 6"x17" flared precision port. Speaker is a MITEK 15" DVC#2 ohm per vc#. The amp is perfect for versatility, if down the road I want to scrap the current application I can use this amp for something else. VERY HIGH POWER and clean too. Zero distortion! Auto turn off works fine with the receiver I am using. Seems to be an efficient and cost effective design. No need to be concerned about the open design with exposed circuitry, you do not need to build a separate enclosure, it is made this way on purpose to help keep the amp cool. The exposed circuitry is extremely ridged, I would not recommend creating your own enclosure unless you use some sort of project box with internal fan#which would only draw dust into the circuit boards and heat sinks). If I hear a bass head driving down the street, I can easily break his windows with my bass from the house with this amp. PERFECT for music and home theatre applications.
Date published: 2013-10-24
  • 2015-03-26T08:55CST
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Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Bash 500S Digital Subwoofer Plate Amplifier 500W RMS

Because of the internal construction of my subwoofer, I'd have to mount the Bash 500S amp so that its long dimension would be vertical.  Could this cause any problem?

Asked by: pookie
No this will not cause any problems with the amplifier.
Answered by: MattP
Date published: 2015-02-24

I blew this amp by pushing it too hard.  I read in a Q&A your offer to evaluate and possibly repair another plate amp for the cost of shipping.  Would I by any chance have an offer like that on the table?  You guys are so awesome I wouldn't be surprised!

Asked by: Spencer RRT
The repairs can only be performed on Dayton brand amplifiers unfortunately, we cannot repair Bash or Yung plate amps.
Answered by: MattP
Date published: 2015-02-17

Will this work as a replacement for Mirage BPS-400

Asked by: retiredman
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-02-13

Hello, I am looking into getting the Dayton Audio 18" Ultimax Subwoofer and cabinet package would this amp power this subwoofer well?

Asked by: JohnNorman
In terms of power, this is an excellent amplifier for that subwoofer.
Answered by: Chrisf
Date published: 2015-02-09

i have 2 8 inch ct sound tropos car subs and would like to know if this amp would work with them there dual voice coils 2 ohms per coil 250 rms each speaker. 

Asked by: JBJP
This amp will work, but you will have to wire everything together in series to present an 8 ohm load to the amplifier.
Answered by: MattP
Date published: 2015-02-11

I need the cut out dimensions for a Bash 500 amp

Asked by: DrMoW
The cutout for the Bash amp is 11 x 7"
Answered by: TomI
Date published: 2015-02-02
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