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Home / Product Category / New items / Nero-XD 200W HiFi DAC 2-Channel Class D Stereo Power Amplifier, Bluetooth® Wireless, Optical, RCA, 3.5MM Inputs, Remote Control

Nero-XD 200W HiFi DAC 2-Channel Class D Stereo Power Amplifier, Bluetooth® Wireless, Optical, RCA, 3.5MM Inputs, Remote Control

Product code: Nero-XD

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Features & Specifications

A Powerful Class D Wireless/Wired Integrated Amplifier
From OSD Audio comes NERO, a compact and powerful wireless and wired stereo amplifier that serves up big sound for two-channel and 2.1 audio systems. Capable of driving high-end tower and bookshelf speakers with pure clarity and volume, NERO will more than satisfy old-school 2-channel analog hobbyists as well as digital streaming enthusiasts. An extremely efficient Class D amplifier, the build quality is sturdy, yet NERO is compact enough to hide away in a closet. NERO also includes a built-in 4.1 Bluetooth wireless receiver, so you can stream your favorite jams as far as 65 feet away.

Includes Digital and Old School Interfaces
This powerful Class D amp includes input and output connections to accommodate any system configuration, such as analog RCA stereo pair and auxiliary 3.5mm for headphones or direct connection to your portable devices. NERO also includes a USB connection and a Tos-link fiber-optic interface.

Your Ears Will Thank You
NERO includes an audiophile quality DAC converter (16 to 24 bits), so you’ll enjoy true high definition audio, as well as RCA inputs to connect to a subwoofer.

OSD Audio's 1st Bluetooth® Wireless Integrated Amplifier. 


How to use, different examples for each input

  • Connect your subwoofer to SUB out.
  • Connect your CD player via its RCA cable to the RCA L/R input. Make sure you connect the “L” plug to the left input channel and the “R“ plug to the right input channel.
  • Connect your phone/tablet/MP3 via an AUX cable to Line In.
  • Connect your DVD player via its optical fiber cable to the Optical Input.
  • Connect your speakers to the Speaker Output. Make sure you connect the -/+ and the L/R cables to the correct input.


Note: Remember to press the desired source button on the remote control for the audio source to work.



  • Design Type: Class D
  • Peak Power Output: 2 x 50W 8 ohm; 2 X 75W 4 ohm
  • Maximum 8 ohm stereo output power at 1% THD+N: 30W
  • Maximum 4 ohm stereo output power at 1% THD+N: 60W
  • Sensitivity: Digital, 0db input; Analog, 0.6Vrms
  • Frequency Response: 20Hz to 20kHz
  • Impedance: 8 ohm to 4 ohm stable
  • Signal to Noise Ratio: >95dB A-weighted
  • Signal Sensing: Power On and Trigger Mode
  • Automatic source switching
  • DSP (Digital Signal Processing): Yes
  • Maximum Sample Rate: 44.1kHz, 48kHz, 96kHz, 192kHz
  • Bit Resolution: 16-24 bits
  • Gain: Analog, 30dB
  • DAC is by Cirrus Logic CS8416 which support 24Bit/192kHz
  • Bluetooth® Range: 33'
  • Input and Output Terminals: main speaker input/output, RCA L/R, SUB out, optical input, power input
  • Rack Mountable? No
  • Remote Included? Yes
  • Dimensions (W x H x D): 7.5" x 2.15" x 5.5"
  • Weight: 2.8 Lbs
  • Warranty: 2 years



  View Owner's Manual            Product Information


12 Questions & 12 Answers
Bill O'Shea
from Boston, MA asked:
November 14, 2019
I have a pair of Newton Outdoor 52 speakers from Cambridge SoundWorks - specs attached. Will the Nero-XD 200W adequately drive these speakers? 

I have them mounted to play outdoors in the yard.

If not can you recommend an alternative?

1 Answer
Hi Bill:

It should be a good match except that the NERO XD is sold out. The NERO Stream XD would be an even better match, check it out on our site. 


Submitted by: Tim Leahy on November 14, 2019

from Boynton Beach Fl. asked:
December 4, 2018
I have a Yamaha Subwoofer with single subwoofer cable out and plug it in to Sub out on Nero Amp.when I power on Subwoofer there is no sound comming from amp.
1 Answer
Hi Mike: Have you connected the Nero (subwoofer output) to the Powered Subwoofer (does your sub specify right or left input)? What source were you listening to when you powered the Subwoofer? Did the AMP go into protection or was your source light still on, just not playing anymore? Did you hear low frequencies from the Powered Subwoofer when the NERO stopped playing? Did you try more than one cable to connect the NERO to the Powered Subwoofer? Please let me know. TL/5318
Submitted by: Tim Leahy on December 9, 2018

from maryland asked:
November 9, 2018
will this amp power two thunder pro 2 heavy duty speaker mtx?
1 Answer
HI Dave: Good question, Yes on the TP1100, maybe on the TP1200 and probably not on the TP2400. All three are 4 ohms and a high Sensitivity; 92dB on average, so it does not take a lot of power to get them playing. The NERO is both Class D and an 8-ohm Integrated Amplifier that can handle a 4-ohm load. The Class D allows it to be in a smaller package, but it is also over 90 percent efficient. It also has an excellent 16 to 24 bit DAC (D to A Converter) for the Bluetooth and an Optical input. Peak power output is 200 Watts, above the TP1100 and just under the 300W peak of the TP1200. Good choice TL/5277
Submitted by: Tim Leahy on November 11, 2018

from San diego asked:
July 24, 2018
Will this work with two pairs the ACE 850 8†speakers and a subwoofer? Will I need more power for the sub?
1 Answer
HI Richard: The NERO is an ideal match for the two pair of ACE-850 in-ceiling speakers. You would wire them in parallel with both pairs home run back to the NERO or daisy chained together. The NERO features four source input options including a Bluetooth Built-in receiver, a 3.5mm line-in, RCA aux input and last but not least a Digital Fiber Optic. Ideal for setting up a connection with an Apple Airport Express, Google Chromcast Audio or a digital connection with most Flat Panel TV. As far as part two, regarding the subwoofer, you would need to add an external powered Sub. Great news, the NERO features a dedicated sub output (single RCA pre-out) that has a variable output so it is controlled by both the front panel Volume Control Knob and Remote Control that comes with the NERO. TL/5124
Submitted by: Tim Leahy on August 1, 2018

from naperville Il asked:
May 20, 2018
Would this be able to be connected to an ISS6 and not damage the unit?
1 Answer
Hi Dan: I do not see why not, the unit has some punch to it and will do a 4-ohm load. You just need to decide whether you will use Impedance matching volume controls or use the internal protection switch on the ISS6. If you use the Impedance matching Volume Controls you will need a VC for each zone connected. If you use these then you need to make sure the Protection switch on the ISS6 is off/disabled. If you forgo the volume controls you will need to make sure you enable the internal protection switch. This will cut you power handling per channel down to 70 watts versus the 140 rated when bypassing the protection. 70 watts should work fine with the NERO. TL/4992
Submitted by: Tim Leahy on May 21, 2018

from Richmond, VA asked:
May 9, 2018
Can this be used with your svc300 volume control and two ceiling mounted ICE800WRS 8" speakers?
1 Answer
Hi Jason: Before I answer that let me ask you about your setup. You are choosing the outdoor weather resistant ICE800WRS speaker along with an indoor Volume Control and our new NERO Integrated Power Amplifier with Bluetooth? First I would suggest upgrading the speakers to a pair of ICE840WRS or depending on your area do 2 pair of ICE640WRS and get broader coverage. The Nero can power two pair of 8 ohm speakers in parallel. The NERO also has a Volume Control on its front panel. So if you were looking for a Volume control to be located nearer the speakers and not worried about impedance matching I would suggest going with our resister based model the VKR120 or outdoor resistor model the OVC305R. These would be a better match with the audiophile sound quality of the NERO. Please let me know more about your layout/application. I could better answer your question with a little more info. My contact info is TL/4970
Submitted by: Tim Leahy on May 9, 2018

Milton Grice
from Butler, Al asked:
April 10, 2018
Can you mount the amp outside, I have a pair of AP650 and RSUB 300 subwoofer on my deck it is hooked up to my house Amp , I would love to have it to a separate Amp what do recommend
1 Answer
Hi Milton: The Nero would not be considered for outdoor duty but could be used close to your home amp which has a wire coming from the outside already. You should also consider adding an dedicated Subwoofer amplifier (like our SMP250) that would be connected to the sub out of the NERO and in fact features a variable output so the Master Volume control on the front and Remote control controls the volume level of the speaker outputs as well as the sub out. You could also run a IR receiver kit so you could use you remote control outside as well. Good luck TL/4899
Submitted by: Tim Leahy on April 17, 2018

from Pittsburgh asked:
April 5, 2018
Are you Going to release a Wi-Fi enabled amplifier?
1 Answer
Hi Robert: I do not believe there are any plans to have a Wi-Fi enabled amp. We already will work with Alexa, Chrome-cast audio and SONOS. Besides the NERO we will have a couple of XMP amplifiers with Bluetooth built in. The nice thing is the NERO also has Digital Fiber Optic input as one of four source inputs. TL/4890
Submitted by: Tim Leahy on April 17, 2018

from Sunrise, Florida asked:
March 18, 2018
I see the amplifier has a sub out does volume go up and down on the sub when you turn the main volume up and down . Right now I have a 200 watt mini Pyle Amp I got the sub plug in but when I turn down the main volume the sub does not turn down with the main volume. Before your amp I would to know.
1 Answer
HI Mike: You are in luck, the NERO 's Sub Out is variable so it is controls the volume with the master Volume Knob on the front panel for all inputs including Bluetooth, Aux in, Fiber Optic and Unbalanced RCA (R&L). Add to that it is 4 ohm stable so you can connect 2 pair of 8 ohm speakers. TL/4850
Submitted by: Customer Service - Q&A on April 15, 2018

Bill Sykes
from KY asked:
February 16, 2018
Does this amplifier make a receiver bluetooth capable?
1 Answer
HI Bill: Good question, this is a complete package where you just add Speakers. It does have a pre amp Sub output for connecting a Powered Subwoofer or Dedicated Sub Amp and passive sub woofer. It also has three inputs (RCA pair, 3.5mm stereo or Digital Fiber Optic) besides the Bluetooth Receiver built in. It features a 16-24 bit DAC. It does not have a pre amp connection to be added as separate source to a receiver. TL/4806
Submitted by: Customer Service - Q&A on February 16, 2018

from Thompsons Station, TN asked:
February 16, 2018
Is there a setting for 4 ohm or 8 ohm resistance, or does the receiver automatically sense and adjust?
1 Answer
Hi Tim: The Unit is rated to go down to 4 ohm which means you can connect two pair of 8 ohm speakers in parallel or a single pair of 4 ohm and of course a single pair of 8 ohm. It automatically attempts to deliver the load based upon what you connect to it. It does feature a 16-24 bit internal DAC and multiple inputs. TL/4802
Submitted by: Customer Service - Q&A on February 16, 2018

from Windermere, FL asked:
February 21, 2018
Can you change the bluetooth advertised name? pin code? If a large order were made could you customize name/code at factory?
1 Answer
Hi Christopher: The thing you can do right now is change the name of the NERO or whatever Bluetooth Receiver like our XWB50 in-wall Bluetooth amp/receiver in your Bluetooth enabled (Smartphone/tablet). I am pretty sure you can do that in Android not sure of apple. Most of all our Bluetooth products have the same codes for their respective product line. Our BTP650 all have the same code, the AP525 have a different code than the AP650 but the same code as all AP525. We have been recommending our WXB500 for whole House audio especially in the bedrooms where you have a choice of Bluetooth or hard wired input. I can talk to out factory about feasibility of having different codes for each unit. Typical MOQ for OEM can be 300 plus units. TL/4811
Submitted by: Customer Service - Q&A on February 21, 2018

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