Bash 300S Digital Subwoofer Plate Amplifier 300W RMS

Brand:| Model: 300S
BASH's patented 300 watt Subwoofer Amplifier technology was developed to offer extreme amounts of power with an efficient operation that escapes most traditional amplifier designs.
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 and phase reversal switch
  • No wasted heat and energy for efficient operation
Part # 
Weight: 3.75 lbs.  
List Price$299.99
You Save43%
Your Price
Buy 2-up$149.87
Part # 300-750
Qty:  EA
Available Payment Methods

Product Details

Bash 300S Digital Subwoofer Plate Amplifier 300W RMS

BASH patented 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, LFE input, master on/off switch, auto on.

• 300 watts RMS @ 0.5% THD into 4 ohm load
• Signal to noise ratio: 105 dB (A-weighted)
• Dimensions: 11" W x 7" H x 4" D
• Cabinet cutout: 10" x 6-1/4"
• Line-in and high-level in crossovers: Adjustable 50 to 150 Hz, 12 dB/octave low-pass crossover, and a fixed 330 Hz, 12 dB/octave low-pass crossover
• LFE-in crossover: Fixed 330 Hz, 12 dB/octave low-pass crossover 

Bash 300S Digital Subwoofer Plate Amplifier 300W RMS
  • BrandBash
  • Model300S
  • Part Number300-750
  • UPC844632001383
  • Product CategorySubwoofer Plate Amplifiers
  • Unit of MeasureEA
  • Product Rating
    (142 Reviews)
  • Weight3.75 lbs.
  • California Prop 65

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

View similar products to the Bash 300S Digital Subwoofer Plate Amplifier 300W RMS
in the Subwoofer Plate Amplifiers product category.


Bash 300S Digital Subwoofer Plate Amplifier 300W RMS
Bash 300S Digital Subwoofer Plate Amplifier 300W RMS is rated 4.3873 out of 5 by 142.
Rated 5 out of 5 by from Outstanding PowerI purchased the Bash 300S digital Subwoofer Plate Amplifier to power my Episode In-Wall Dual 8 inch Woofers, and I couldn't be more pleased. It was easy to set-up, and the power on/standby feature is awesome. When I turn on my Pioneer VSX-1123 Receiver and 80 inch LCD, the Bash amp kicks on at the first request for low frequency. I've only had it for a couple of weeks, but thus far, I'm very pleased. My only complaint, I wish it came in an enclose or the manufacturer offered an enclose for sale.
Date published: 2014-06-12
Rated 4 out of 5 by from 1st one was D.O.A.I recently purchased this Dash 300S to power my Digger 8 subwoofer build. The first one was D.O.A. I had to immediately turn around and order a second one and arrange a return of the first. The second one was $5 cheaper than the first due to a sale or promotion or coupon or something, but nontheless, the return was painless including a pre-paid shipping label from Parts Express. I returned the first amp while the second was ordered and just asked for a refund on the first. This was the quickest way for me to get a second amp in my hands. However, when my refund was processed, they refunded me the cheaper amount ($5 less) which is the second amp, not the first. But it was still a painless transaction and I didn't even bother to complain. The ease was worth the $5.00 SO I will give Parts Express 4 stars on the quick and painless return of my amp and refund of the "wrong" purchase.The second amp is working flawlessly so far. Look up the Digger 8 sub build if you are interested in seeing what this amp will do. It truly does rattle things 25 feet away from the sub, eventually had to turn it down because things were falling off of shelves in other rooms. I give the subwoofer designer their due credit for this coupled with this good amp. Either alone would not produce these results. LFE is truly off the hook.
Date published: 2014-06-12
Rated 4 out of 5 by from Great Little AmpBought this in the UK did not realize that it only works on 110v, but after getting a step down transformer in running this with my Dayton Audio 12" Sub, it does an amazing job. Tried using both the LFE input and RCA input and the LFE input works nicely by matching with my other speakers!
Date published: 2014-05-26
Rated 5 out of 5 by from Amazing Bass, how sweet the sound!Built a DIY sub and got way, way WAY more than I thought possible. Dynamic! For anyone who isn't convinced enough information in the 100 Hz and below isn't worth the effort. Take the jump! You too will be amazed.
Date published: 2014-04-07
Rated 5 out of 5 by from Used on Klipsch RW12DUsed the power supply board from this amp to replace the burned out power supply that was original to my Klipsch RW12D. I did not use the entire amp, just the power supply. So far has worked great.
Date published: 2014-03-03
Rated 5 out of 5 by from Works very well! Worth the priceHooked this beauty up to an old school 13 inch 8ohm woofer in a large sealed cabinet, and it sounds amazing! I'm unsure of it's output at 8ohms, but it's definitely adequate. It fills my room (20x18x7) and shakes the walls. For the size and weight it seems unconvincing that it's really 300wrms into 4ohms but I'd definitely believe it after hooking it up. Friends were also impressed at the sound it produced.Cons: Didn't come with screws, internal wiring to driver seems a bit thin. I replaced it with thicker wire. Minor cons, still a 5 star product.
Date published: 2014-02-27

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 300S Digital Subwoofer Plate Amplifier 300W RMS

Hi, I have JBL PB12 subwoofer, after 4 years, fire, I would like to know this amplifier serves as a substitute to the original.

Asked by: vianajulio
It will work well although the cabinet will require modifications in order for it to fit properly.
Answered by: MattP
Date published: 2014-07-08

I have a Klipsch RW-12.   Has anyone used this a replacement as the cutout width is 7" and the original OEM plate width = 7 7/8".   Second do the two plastic connectors match up on the PC board?

Asked by: oldtimer85
This amplifier works well as a replacement for a lot of Klipsch subwoofer models, although cabinet modifications are almost always required for it to fit. I'm not sure which connection on the PC board you are referring to, this amplifier has 18" wire leads to connect to the woofer.
Answered by: MattP
Date published: 2014-06-25

Can I use the Bash 300S as amplifier for my Main LCR speakers? I am thinking of getting 3 of the BASH 300S and build a DIY amp for front LCR channels. Is this possible? 

Asked by: ajayknair
If you are wanting to use this to power your LCR speakers unfortunately it will not work since this is a subwoofer amplifier and is only designed to play low frequencies.
Answered by: MattP
Date published: 2014-06-09

How do you connect this and your monitors without a subwoofer output?  Do you daisy chain the speaker wire (amp speaker out -> Monitors -> Bash 300)? 

Asked by: MatsJ
Yes you can either split the output from the amplifier and send one set to the monitors or one set to the subwoofer, or daisy chain from the amp to the subwoofer and on to the monitors.
Answered by: MattP
Date published: 2014-06-09

What are the dimensions?

Asked by: opusxx
• Dimensions: 11" W x 7" H x 4" D• Cabinet cutout: 10" x 6-1/4"
Answered by: Chrisf
Date published: 2014-06-03

At a certain volume this amp keeps on shutting off. Is theyre a reason why?

Asked by: Chewy
There are many potential reasons for this to happen, it could be a short somewhere, its simply being over powered and thermally shutting off, the woofer resistance could be less than 4 ohms or it may simply be defective. I would troubleshoot as much as possible, if its only happening at higher volume levels it is probably going into thermal shut down.
Answered by: MattP
Date published: 2014-05-02

Customer Projects

Customer projects that include: Bash 300S Digital Subwoofer Plate Amplifier 300W RMS

If you built a project using this product, post it in the Parts Express Project Gallery.

Customer Discussions

If you would like to start a discussion about this product, post a thread in the TechTalk Customer Forum.
Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Parts Express
725 Pleasant Valley Dr.Springboro,OH45066USA

© 1996-2014 Parts Express, All Rights Reserved