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SKU: OSD-AMP200 2-Channel 125W Per Channel, High Current Class A/B Stereo Amplifier Toroidal Transformers - AMP200

Purchase 2-Channel 125W Per Channel, High Current Class A/B Stereo Amplifier Toroidal Transformers - AMP200
  • SKU: OSD-AMP200 high-power-stereo-amplifier

    2-Channel 125W Per Channel, High Current Class A/B Stereo Amplifier Toroidal Transformers - AMP200

  • $299.99

    Compare at: $449.99 You Save $150.00

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A team OSD favorite, the AMP200 is a high current 2-channel amp with loads of features. This amp lets you home run (directly to the back of the amp) two pairs of speakers or 4 speakers total. Since it's high current, you can add up to 4 pairs of speakers (8 speakers total) by adding OSD speakers selectors such as the DSM4. Rated at 80 Watts per channel at 8 ohms, the OSD-AMP200 is overload stable so it's ideal for use anywhere clean power is needed. It also includes a dual source switching circuit. When you connect two independent sources number (say your iPod and a TV in another room) source one takes priority when it is active. When source one is turned off, source number two comes on. Note: You cannot play two sources simultaneously. For this feature you need a multi-channel amp like our MX1260. Step-up features rarely seen in amps of this price range include a built-in voltage meter, and front mounted volume and balance trim controls. 

High Performance, High Current Power 
Rated at 80 watts per channel at 8 ohms, and stable down to 2 ohms, the OSD-AMP200 is overload stable so it's ideal for use anywhere clean power is needed. It also includes a dual source switching automatic circuit. Step-up features rarely seen in amps of this price range include a built-in voltage meter, and front mounted volume and balance trim controls. 

AMP200 offers 80 watts RMS per channel of power, with bridgeable outputs for up to 250 watts RMS. A, B, or A+B speaker selector switches make managing connected outputs easy. And a signal-sensing power on feature lets the amp power up automatically when you power on your source. 

Automatic Source Switching 
The AMP200 can automatically switch between connected sources, thanks to a priority signal-sensing feature. So if you have your iPod connected to input 2, then decide you want to watch a movie, when the DVD player connected to the main input 1 is turned on, the AMP120 will automatically switch to that source. 

A variable delay control lets you adjust the amount of time needed to "listen" for a signal from your main input, between 3 and 15 seconds, so things like gaps between CD tracks won't accidentally switch your inputs. 

Works with Smartphones, iPods, and Other Portable Devices 
Use the AMP200 to connect your Smartphone or other portable music device (as long as you have a headphone jack.) The AMP200 includes two RCA signal level inputs marked as red for right and white for left. Using an RCA-to-mini stereo cable (sold separately), plug the 3.5mm stereo connector into the headphone output of your iPod or other portable device, then connect the RCAs to one of the inputs of the AMP200.

Warning: California's Proposition 65


This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to

  • Design Type: Class A/B
  • Peak Power Output: 200 Watts per channel
  • Maximum 8 ohm stereo output power at less than 0.2% THD+N: 80W
  • Maximum 4 ohm stereo output power at less than 0.2% THD+N: 125W
  • Maximum 8 ohm Bridged-Mono output power at less than 0.2% THD+N: 250W
  • Frequency Response: (20Hz to 20kHz) +0.0dB, -0.5dB
  • Impedance: 8 ohm to 2 ohm stable
  • Signal to Noise Ratio: -103dB referred to rated power at 4 ohms
  • Turn on options: maunal on, signal sensing, and 12V Trigger mode
  • Unique Automatic Dual Source Priority Switching with Speaker Level Input Option
  • Input and Output Terminals: Interrupting line input, main input/output, 12V trigger, speaker zone A output, speaker zone B output, RCA input (4 total)
  • Rack Mountable? Yes
  • Dual Source Switching? Yes
  • Dimensions (W x H x D): 16.5" x 3.5" x 13.5"
  • Weight: 30 Lbs
  • Warranty: 2 years
129 Questions asked
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NateB • 12/17/2019, 2:17:43 PM I'm still confused after the answer to ChrisJ from Philadelphia. If I wanted to run 4 pair of 8ohm in-ceiling speakers all from this amp, is that possible? If two pair were wired in parallel on each output, would that demand 250w total from the amp? And if the max output is only 200w, that's going to be a problem.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Nate: Good question, this amplifier is considered a High Current Amplifier that is 2 ohm stable. It features a High Output Toroidal Power Supply, Plenty of internal capacitance (able to supply and recharge stored current) all discreet components and Ample internal Heat sink to help dissipate the heat generated by the current demand. It weighs in at 24 pounds. I said it can handle three pair of 8 ohm speakers which would be a 2.6 ohm load. It will not handle 4 pair in parallel unless you use either a high power speaker selector or speaker selector with impedance matching Volume controls. You could use an impedance matching Volume Control on on two pair and connected to Speaker output A and a second two pair on a impedance matching Volume Control connected to Speaker B. Both Volume Controls would need to be set to 4X. This amp is built to run at 4 ohm load all day long. If you want to run it at 8 ohm it would be like driving your corvette at 35 miles an hour on the highway. TL/4192
JR • 12/17/2019, 2:17:43 PM I have the AMP200 and am currently using it to power my 2 front speakers in my 7.1.4 Dolby Atmos setup. I'm considering adding your OSD IWS10 or IWS88 to my setup and removing my bulky subwoofer. Would the AMP200 be able to power the subwoofer in addition to my 2 front speakers? Also, which subwoofer do you recommend of the two noted? The location would be lower front left corner of room approx. 12' from seating. Thank you for your help!
Customer Service • 12/17/2019, 2:17:43 PM
Hi JR: Good question, but I do not believe the AMP200 will help you out. Plus placement of your sub woofer can be critical. The advantage of the bulky sub woofer is you have the ability of determining where the best location (for most bass) is for your room being it is a self powered dedicated enclosure. Of course since you already have it you can place the bulky sub in front of the location you are planning to install the sub in the wall and see how it sounds compared to its original location. The problem with the low frequencies is the size of the sign way that can create dead zones in the room. Which is one of the reasons most receivers have two sub outputs (not to just sell you another sub). So if you can determine the location to add an in-wall sub will work. You will need an external dedicated mono sub amplifier complete with crossover, gain and phase control to power it. The latest craze is to have one sub connected to sub 1 output and a second sub connected to your center channel. I am assuming you are using the AMP200 for Right and left front and the external amplifier for your center channel. This would leave a pre amp connection for your center channel to output to your powered sub or external sub amp with a in-wall sub like our IWS10. Both the Pre amp and speaker level outputs are hot at the same time. on most Receivers (check your owner's manual to be sure). If you don't have the owners manual you can easily download one on line. Hope that was not too confusing, if you need additional help you can contact me at TL/4205
John • 12/17/2019, 2:17:43 PM I don't understand. The amplifier page lists this as AMP200 High Current 100W RMS x 2 Channel while the specs say 200 watts per channel. The AMP300 says AMP300 High Current 150W RMS x 2 Channel and those specs say 350 watts per channel. I'm looking at both the AP840 and AP850 (pair). I'm just as confused on the speaker specifications. Why is the frequency range on the higher priced AP850's 45Hz to 22kHz while the AP840 is listed at 30Hz to 22kHz so it would seem both handle 200 watts peak but the cheaper AP840's have better bass response? Are these typos?
Customer Service • 12/17/2019, 2:17:43 PM
HI John: The actual specs are in each owner's manual. The AMP200 is 80 watts at 8 ohm 125 at 4 ohms and 200 W at 2 ohm 250 Watt Bridged Mono (8 ohm) AMP300: 150 Watts at 8 ohm 235 watts at 4 ohm 350 watts at 2 ohm 470 watts Bridged Mono Technically you can drive three pair of 8 ohm speakers in parallel off the output of the AMP200 or AMP300 (2.6 ohm load). You can drive a 2 pair off speaker A and 1 pair of of speaker B and play both A and B at the same time.You could drive all three off Speaker A but could not use Speaker B. Both these amplifiers are High Current (needed to play at 2 ohm) total discrete components, ample internal heat sinking and lots of internal capacitance. On the AP 850 versus AP 840 the Frequency Response on the AP 850 should be 37 Hz versus 45 Hz, technically a broader frequency response 30 vs 37 Hz but the AP 850 is a better sounding speaker that also features a 70V option. By far our best 8" 2 way patio speaker. TL/4212
Joe • 12/17/2019, 2:17:43 PM Is this the same amp? Sure looks like it.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Joe: The OSD Amplifier has the identical features as the AudioSource unit. Both are High Current Amplifiers. The AudioSource changed the cosmetics to include front panel LEDs and and three way indicator ring around the power button. We added the two power meters to our version. Performance is identical. I know since I was at AudioSource when they made the change to a different supplier. OSD worked with the original supplier to create the same amp for them. I have since joined OSD. Our biggest advantage here is we work directly with the end user like yourself and have a much better understand of all its features and applications. TL/4218
Vinny • 12/17/2019, 2:17:43 PM This unit has no sub out. Can I use the line level output to a sub amp?
Customer Service • 12/17/2019, 2:17:43 PM
Hi Vinny: The AMP200 has two input Lines; Line 1 input and Line 2 input plus line 2 output. You can connect the sub amplifier to the line 2 output but you must use line 2 input since only the signal from Line 2 input is passed through to Line 2 Output. Note: If you are using sub woofer amplifier like our OSD SMP250 you can connect the AMP200 using the Speaker B output (if available) to the speaker level inputs on the SMP250. Then the sub-woofer can play either from Line 1 input or Line 2 input. TL/4274