Amplifiers, New Products

Transform Your Home Theater with OSD’s HTA Series Amplifiers

The OSD HTA Series amplifiers, featuring models like the HTA4200, HTA5200, and HTA7200, represent the pinnacle of home theater audio excellence. Designed to deliver powerful multi-channel output with up to 210W per channel, these amplifiers ensure an immersive audio experience that mimics the intensity of commercial cinema sound levels. With meticulously engineered specifications including a high signal-to-noise ratio and minimal distortion, the HTA Series stands out for its superior audio clarity and robust performance. Enhanced with RCA inputs for versatile connectivity, these amplifiers offer both audiophiles and casual listeners an affordable solution to achieve premium sound in their own home theaters.

Difference Between XA Series and HTA Series

The HTA amplifiers are the latest range of Home Theater Amps from OSD and include some significant improvements over our previous XA amplifiers.
The key areas we worked on were larger cases for better cooling, increased power output levels, multiple toroidal transformers, very low standby power consumption and improved Signal to Noise Ratio (SNR).

Why are these important and what do they mean?

  • Better cooling means a longer life, particularly when placing the amps in a rack or cadenza.
  • Low standby power consumption saves you money and helps the environment.
  • Higher power levels are important to achieve a peak sound pressure level of 105dB to equal the experience of a movie theater.
  • Using multiple transformers ensures that when all channels are playing at high levels there is no restriction on the power available.

SNR is a measurement of how noisy the equipment is compared to the soundtrack being played. With an SNR of 110dB these amps are extremely quiet. Good amplifiers are rated above 100dB SNR. Great amps such as our new HTA amps are rated at 110dB at full power. Combining these important requirements is difficult and usually very expensive. Our ability to source great components at low prices coupled with our low overhead, and factory direct prices gives us a tremendous advantage.

In summary, OSD’s HTA Series amplifiers set a new benchmark for home theater systems, distinguishing themselves from the earlier XA Series with enhanced features designed for the ultimate audio experience. From improved cooling systems that extend the lifespan of your equipment, to the eco-friendly low standby power consumption and exceptional power capabilities that bring cinema-level sound right into your living room, the HTA Series is engineered to impress. With an SNR of 110dB, these amplifiers operate with whisper-quiet efficiency, ensuring that nothing distracts from the purity of the sound. For those looking to invest in a state-of-the-art audio solution that offers both performance and value, the HTA Series from OSD is an unbeatable choice. Embrace the future of sound with OSD, where advanced technology meets sophisticated audio engineering.

HTA4200


  • All Channel Output:
    • 4 Ohms @1% THD – 210W
    • 8 Ohms @1% THD – 145W
    • 4 Ohms @0.1% THD – 180W
    • 8 Ohms @0.1% THD – 125W
  • Single Channel Output:
    • 4 Ohms @1% THD – 265W
    • 8 Ohms @1% THD – 180W
    • 4 Ohms @0.1% THD – 235W
  • Bridge Rating 8Ohms: 400W
  • Frequency Response: 5Hz – 50KHz, +/- 3dB
  • Input Sensitivity: 1V
  • Signal to Noise:
    • Rated Power: 110dB
    • 1W: 105dB
  • Class AB
  • Air Cooled
  • 12V Trigger
  • Idle Current: 0.14 Amps
  • Max Current All Channels: 10.7 Amps
  • Transformer: Toroidal
  • Capacitors: 4 x 10000uF
  • Power Supply: 110/240V
  • Rack Mountable: Shelf
  • Weight: 51 lbs
  • Dimensions: 6.3″ x 17.1″ x 16.57″
  • Warranty: 5 Years

HTA5200


  • All Channel Output:
    • 4 Ohms @1% THD – 210W
    • 8 Ohms @1% THD – 145W
    • 4 Ohms @0.1% THD – 180W
    • 8 Ohms @0.1% THD – 125W
  • Single Channel Output:
    • 4 Ohms @1% THD – 265W
    • 8 Ohms @1% THD – 180W
    • 4 Ohms @0.1% THD – 235W
  • Frequency Response: 5Hz – 50KHz, +/- 3dB
  • Input Sensitivity: 1V
  • Signal to Noise:
    • Rated Power: 110dB
    • 1W: 105dB
  • Class AB
  • Air Cooled
  • 12V Trigger
  • Idle Current: 0.14 Amps
  • Max Current All Channels: 13.6 Amps
  • Transformer: 2 x Toroidal
  • Capacitors: 4 x 10000uF
  • Power Supply: 110/240V
  • Rack Mountable: Shelf
  • Weight: 63 lbs
  • Dimensions: 6.3″ x 17.1″ x 16.57″
  • Warranty: 5 Years

HTA7200


  • All Channel Output:
    • 4 Ohms @1% THD – 210W
    • 8 Ohms @1% THD – 145W
    • 4 Ohms @0.1% THD – 180W
    • 8 Ohms @0.1% THD – 125W
  • Single Channel Output:
    • 4 Ohms @1% THD – 265W
    • 8 Ohms @1% THD – 180W
    • 4 Ohms @0.1% THD – 235W
  • Frequency Response: 5Hz – 50KHz, +/- 3dB
  • Input Sensitivity: 1V
  • Signal to Noise:
    • Rated Power: 110dB
    • 1W: 105dB
  • Class AB
  • Air Cooled
  • 12V Trigger
  • Idle Current: 0.14 Amps
  • Max Current All Channels: 19 Amps
  • Transformer: 2 x Toroidal
  • Capacitors: 4 x 1000uF
  • Power Supply: 110-240V
  • Rack Mountable: Shelf
  • Weight: 71 lbs
  • Dimensions: 6.3″ x 17.1″ x 16.57″
  • Warranty: 5 Years

Have any questions reach out to our team!