Yung SD500 500W Class D Subwoofer Plate Amplifier Module No Boost

Brand:| Model: SD500
For applications that demand extreme levels of continuous, high-quality power, the Yung SD500 Class D subwoofer amplifier module produces 500 watts RMS at 4 ohms.
A restocked/refurbished, or Open Box unit of the product is available -- see it now
  • Class D amplifier circuit with switching power supply provides excellent efficiency
  • Capable of sustained, continuous output without thermal shutdown
  • Built-in limiter circuit protection prevents peak overloads
  • Low-level, high-level, and LFE inputs for flexible interconnection
  • Manual and automatic on/off mode options
  • Fully adjustable phase, gain, and crossover points ensure system optimization
  • Switchable 115/230V input voltage
Part # 
Weight: 7.05 lbs.  
List Price$299.99
Regular Price$238.58
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Part # 301-512
Qty:  EA
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Product Details

Yung SD500 500W Class D Subwoofer Plate Amplifier Module No Boost

Yung International's SD Series Class D subwoofer power amplifiers are equipped with the unique ability to operate continuously at full rated output—a performance attribute not shared by most home audio amp designs. The benefits of this remarkable reserve capacity include solid, punchy dynamic range and fewer "nuisance" shutdowns when operated at sustained high levels.

The amplifiers are also extremely compact, lightweight, and cool-running, allowing users to enjoy the advantages of compact system form factors and flexibility of placement. An internal peak limiting circuit prevents amplifier overload, and protection against internal and external faults is also provided. Input power requirements are user configurable to either 115 VAC or 230 VAC line voltage.

Room optimization and system integration are accomplished easily, thanks to the SD Series amps' inclusion of fully variable level, crossover frequency, and phase controls. Signal input is connected via dual RCA-type jacks, including the means to accept the output of an A/V receiver's LFE output, and dual RCA jacks are also provided to facilitate line level loop-through. The amplifier also accepts high (or speaker) level input signals through binding post terminals. When in standby mode, the amp's full active operation is engaged by signal presence of less than 1/2 watt.

Specifications: • Measured power output: 500 watts RMS into 4 ohms @ < 1.0% THD • Signal to noise ratio (at rated power): >90 dB • Input sensitivity (@ low level): 210 mV/50 Hz • Input sensitivity (@ high level): 3.0V/50 Hz • Low pass adjustment: 40 Hz to 200 Hz • Phase adjustment: Continuously variable from 0º (normal) to 180º (reverse) • Power requirements: Switchable, 115/230 VAC, 50/60 Hz • Dimensions: 9-7/8" W x 10-5/8" H x 3" D; Cutout dimensions: 8-7/8" W x 9-3/4" H.

Yung SD500 500W Class D Subwoofer Plate Amplifier Module No Boost
  • BrandYung International
  • ModelSD500
  • Part Number301-512
  • UPC844632095641
  • Product CategorySubwoofer Plate Amplifiers
  • Unit of MeasureEA
  • Product Rating
    (6 Reviews)
  • Weight7.05 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.

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Yung SD500 500W Class D Subwoofer Plate Amplifier Module No Boost
Yung SD500 500W Class D Subwoofer Plate Amplifier Module No Boost is rated 4.8333 out of 5 by 6.
Rated 5 out of 5 by from Built well, performs greatFrom the weight of it, (especially compared to what it replaced for me) I could immediately tell it was good quality. It's running 2 12's in a large party room and while it gets warm after a couple hours of serious abuse, it doesn't miss a beat, distort, or otherwise complain. Major bang for the buck.
Date published: 2014-12-05
Rated 5 out of 5 by from nice valueBought 2 of these on sale to power the sub portion of my towers. Nice amp for the money well made provides plenty of power. Little on the large side would be nice if it was a bit narrower. Can't complain since most comparable sub amps are similar in size. Don't hesitate to pick one up, and if it’s on sale get it quick because they sell out fast.
Date published: 2014-03-12
Rated 5 out of 5 by from Solid performerBought two of these units for two subs I just put together using 12" 4 ohm drivers. The amps have solid low bass capability and run pretty cool. No hum or noise problems at all. My only wish is that the auto turn on feature could either be disabled or had a lower input threshold to turn on. I sometimes have to give it a good volume shot to kick them in. Seem like they are pretty well built units.
Date published: 2014-03-03
Rated 5 out of 5 by from greatBought this to replace my dayton audio spa250 that was underpowering my 2 dxi 10" polk subs what a difference in sound quality and power
Date published: 2014-01-25
Rated 4 out of 5 by from So far, so goodI have had this amp only for a couple of weeks. It's driving a Dayton Ultimax 15. It sounds great. Drives the Ultimax effortlessly.When run hard, the surface of the amp is a little warmer -- maybe a bit warmer than I expected out of a class D. Minimal speaker hum. Unnoticable unless you put your ear directly to the speaker. Amp adjustments are great. I do wish it had an adjustable low pass filter, but so far the speaker is performing just fine without it. No complaints as of now.
Date published: 2014-01-21
Rated 5 out of 5 by from Tested with music and theater, results; impressed!Setup:2 of these no-boost amps (most home theater/AV receivers have sub/LFE adjustments anyways).2 dual-4 ohm voice coil subs run in series for an 8 ohm load.Open air enclosure in the basement.Been using it now for little over a month, and other than a few things falling off the wall, my impressions are nothing but solid! Inspecting the insides, you can tell they were looking to make this last! So many aspects of the design (visually) show they addressed all the areas that would ensure long term reliability. Though I installed this in an open-vented location (instead of sealed in a sub-box), there was care in making sure the heat generating chips would have adequate cooling ability. Upon running it hard for a time, I only found the outside of the case getting warm, nothing inside got that warm. This proves they knew it would be in an enclosed environment where there would be no real air-exchange inside. So the biggest dissipaters of heat would be able to conduct through the outside of the case, very nice, must be someone used this at home and decided what would actually be best, instead of waiting for negative feedback telling them they did not do their testing properly, ending with their reputation suffer even more from that. I was stuck with two dual-4 ohm voice coil subs leftover from my last setup, but found that with 2 of these amps running 8 ohms worked quite well (two 4 ohm coils run in series to make 8 in this setup, since two 4 ohms run parallel would make 2 ohms, that this amp won’t do, fine by me). Bass is tight, fluid and musical on songs, as very powerful and gut wrenching for home theater awe! Adjustments are the ones you want, and work as promised.Only thing I can add is it would be nice to include screws to mount it, not a big deal though, just plan ahead to keep the excitement going once you get it and want to put it onto action. Remote control over-ride for late night movie viewing would be a fancy feature request, run from an app off your phone of course, though you can get a 15 amp-rated wireless remote control device for the plug outlet easy enough to silence these at night, I have 2 (1 for each amp ;-).A very good piece of gear!
Date published: 2013-12-18

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.
Yung SD500 500W Class D Subwoofer Plate Amplifier Module No Boost

Can I use this amp to drive car sub pioneer 1200 watts?

Asked by: konstantin
Yes as long as the load to the amp is 4 ohms or higher.
Answered by: MattP
Date published: 2014-11-14

I would like to build a powered sub for a small PA for a RnB band. I have some free Infinity car subs (12s) wondered if it is worth the endeavor or possibly the duty cycle of a music reinforcement system is too great for a home amp.

Asked by: MikeR1959
We do not recommend using any of our subwoofer plate amplifiers for this application.
Answered by: MattP
Date published: 2014-07-08

how do i get this to power down?  once on it never turns off?  even with all wires removed but power, green light is on and plate is hot?  

Asked by: HighPerf
This sounds like a possible amplifier problem. Please call or email our Tech department for further instructions regarding this, 800-338-0531 x1 or tech@parts-express.com.
Answered by: MattP
Date published: 2014-02-03

Can this handle a 2ohm load? 

Asked by: Rossta45
Unfortunately no, this will only handle a 4 ohm load.
Answered by: MattP
Date published: 2014-01-20

Low pass?

Probably a dumb question, but I've never dealt with plate amps before: What sort of signal are the RCA inputs expecting? Already low-passed (as in, receiver LFE output)? Or is full-spectrum line-level signal OK there? Same question for the "speaker level" inputs.Basically, for my application I want to block/remove the inputs that can't accept a full-range, line-level signal (say, from a receiver, DJ mixer, etc).
Asked by: daniels1
The RCA and speaker level inputs will accept full range or low frequency inputs. The crossover in the plate amp will limit the amount of high frequencies going to the subwoofer.
Answered by: MattP
Date published: 2013-11-08

(2) 8 ohm cabinets- follow-up for MattP

"You will have to put an output jack on the cab with the amp and run the second cab from that jack."-- MattPMatt, do you have a recommendation on the best way to do that?
Asked by: Bongo Dave
There are many ways to do this. The easiest would probably be a set of standard binding posts wired in parallel to the woofer in the cabinet with the amplifier and a similar set of binding posts in the passive cabinet. Run standard speaker wire between the two.
Answered by: MattP
Date published: 2013-08-15

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