Yung SD200 200W Class D Subwoofer Plate Amplifier Module No Boost

Brand:| Model: SD200
High efficiency and the ability to produce full output continuously are important features of the Yung SD200 200W Class D subwoofer amplifier module, in addition to its small size, high fidelity, and economical price.
  • 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 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: 3.05 lbs.  
List Price$199.99
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Part # 301-504
Qty:  EA
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Product Details

Yung SD200 200W 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. 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: 200 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 • 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: 8" W x 7" H x 2-1/4" D; Cutout dimensions: 7-1/4" W x 6-1/4" H.

Yung SD200 200W Class D Subwoofer Plate Amplifier Module No Boost
  • BrandYung International
  • ModelSD200
  • Part Number301-504
  • UPC844632095603
  • Product CategorySubwoofer Plate Amplifiers
  • Unit of MeasureEA
  • Product Rating
    (17 Reviews)
  • Weight3.05 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 SD200 200W Class D Subwoofer Plate Amplifier Module No Boost
Yung SD200 200W Class D Subwoofer Plate Amplifier Module No Boost is rated 4.7059 out of 5 by 17.
Rated 5 out of 5 by from Great performance and valueThe amp in my Polk Audio PSW110 died. I was tempted to upgrade to a better subwoofer but I gave this amp a try because of the very attractive price. I had to widen the opening a little but that was no big deal. Once that was done, the rest took me no more than 15 minutes to complete.This amp is significantly more powerful (200 W vs 70 W), the bass extension was immediately obvious. Getting proper settings (frequency, phase, volume) took many hours, which was expected. In the end, I am quite happy with the performance. I think the best feature is the availability of the continuous phase adjustment. Most cheaper subwoofers don't have this option of continuous phase adjustment, only 0 or 180 available. In my case, it turns out 110 is about optimal. I cannot over emphasized enough the importance of proper settings, otherwise, it can indeed sound thin or boomy.I am not a big bass fan; I just want a subwoofer to complement the main speakers for mainly music. I don't need the subwoofer to shake the floor for movies, but the performance is respectable if the volume is turned up.So far so good, I do have a minor complaint. The speaker connectors have different sizes. One of them is smaller such that it does not match the speaker connector. I had to replace it with the proper size connector. Not a major pain but irritation.
Date published: 2015-04-20
Rated 5 out of 5 by from Great Replacement Sub for JBL PB-12I don't know how long it will last, but the Yung 200 watt I bought from Parts Express sounds at least as good as the original JBL amp in my PB-12. There were no problems mounting the new amp and it started right up. The only thing that could be improved is the clearance between the electronics and the edge of the mounting plate. It could be a little more, but it still was not a problem. The price was very attractive, and overall I am very pleased with the Yung and Parts Express.
Date published: 2015-03-31
Rated 5 out of 5 by from Replacement for Infinity BU-120Had my third failure with my BU-120. Was not going to get in repaired again. Saw the dimensions on this SD200 was similar. Took my dremel and removed 1/8 - 1/4" from the height opening on the BU-120 box unit and replaced the speaker connectors so they would match up to the SD200 amp. Drilled new mounting holes and my subwoofer was up and running in <45 minutes. Shipping was fast plus the sound and performance quality met my expectations.
Date published: 2015-03-27
Rated 5 out of 5 by from Nice unit!I bought this to replace a plate amplifier in a JBL ES150 ported 10" front firing sub that had fried itself. The Yung was smaller in size and less RMS wattage than the original amplifier. I had to craft a wooden adaptor plate to make the Yung fit, and I mounted it sideways. Anyway, very pleased with amplifier and the outcome of the efforts. Tight bass, very punchy and the 200wat rms output is plenty for my purposes. I'd love to build another sub with this unit.
Date published: 2015-03-27
Rated 4 out of 5 by from Great replacement for the Infinity BU-120 sub ampI have used it about a week to replace a defective amp on Infinity BU120 subwoofer. It fit cabinet with minimum modification to cabinet and sounds as good or better than factory amp. Runs cool.
Date published: 2015-01-08
Rated 5 out of 5 by from Punchy little suckerWonderful little amp. I use it to power an outboard, ported cylinder sub, since I do not care to have amplifiers installed in the sub box, mainly because I am paranoid about something shaking loose. The amp has been installed in a small box, with binding posts on the side to facilitate using speaker wires.I previously purchased the SD-300 version and use it the same way, with still another ported cylinder sub I built, although the outboard box I built is a bit larger. With either unit, the box can be stashed out of the way once the connections are completed.Both of the subs are 4 ohms, but I have built a third that is 8 ohms and the only thing about the SD-200 and SD-300 that I do not like is that the spec sheets do not offer up 8-ohm power ratings; just 4 ohm. I have also ordered another SD-200 (this one with the 6-dB boost at 35 Hz, because the third cylinder sub is rather small sealed-box job with 8-inch woofers at the top and bottom), and will report on that one down the line.A picture of both units is attached.Howard Ferstler
Date published: 2014-10-08
  • 2015-07-01T07:13CST
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  • clientName_PartsExpressInternational

Product Q&A

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Yung SD200 200W Class D Subwoofer Plate Amplifier Module No Boost

Can I somehow bypass auto on/off (permanent on)? It looses signal (green light is still on). If I reconnect audio input it works again. If I reconnect main power it reads the signal again. Sometimes it works OK for hours.

Asked by: Kangaroo
Unfortunately the auto-on feature is not able to be bypassed. If the amplifier is shutting off at low volumes, try boosting the subwoofer output on the receiver and compensating by turning the gain down on the amplifier.
Answered by: MattP
Date published: 2015-06-10

Is this amp stable at 2 ohms? I am thinking of using it to drive two 4 ohm bass shakers in parallel. I know I can wire the shakers in series for an 8 ohm load, but that halves the output power.

Asked by: ebsebs
This amplifier is only stable down to 4 ohms. A 2 ohm load can damage it.
Answered by: Chrisf
Date published: 2015-03-31

I am replacing A amp from A RCA 200 watt sub-woofer  will this amp work for A placement 

Asked by: slipknot
The enclosure will probably require modifications in order for the new amp to fit, but if this is something you are able to do and the original woofer is 4 ohms this will work well.
Answered by: MattP
Date published: 2015-03-17

Considering the type low pass filter in this amp, is there any advantage (or possible disadvantage) in using an Impedance Equalization Circuit on the sub driver? I'm intending to use the 10" DCS255-4 in a TL cabinet.

Asked by: BOBinMIZZU
Even at the highest crossover setting there would be no advantage to an impedance EQ circuit on a subwoofer like this.
Answered by: MattP
Date published: 2015-03-11

What is the power output rating at 8 ohms? 

Asked by: Turtleboyjolo
Doubling resistance usually halves the current, so the output power into 8 ohms will be roughly 100 watts.
Answered by: MattP
Date published: 2015-01-16

Hey can I use this amp if I wanted to wirer up 2 five inch sub's @ 6ohms @80watts each they are from a old JVC hybrid system 

Asked by: dee dub
This amp will work but you will have to wire the subs in series for a 12 ohm load.
Answered by: MattP
Date published: 2015-01-12
  • 2015-07-01T08:41CST
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