Specs:

RUSSOUND A2100 2x100 Stereo Digital Amplifier

• Continuous Output Power:
  
• 100W @ 8 Ohms < 0.1% THD+N
  
• 125W @ 4 Ohms < 0.5% THD +N
  
• 225W Bridged @ 8 Ohms < 0.2% THD+N
  
• Minimum Impedance: Stereo mode - 4 ohms bridged mode - 8 ohms
  
• Power Requirements (Autoswitching Power Supply):
  
• North American and European Models:100VAC to 240VAC 50/60Hz 2.5A IEC 320 type
• connector with 3 terminal detachable power cord
  
• Standby Power: <0.5 Watts
  
• Rack Ears: Included
  
• Parts and Labor Warranty: 2 years
  
• Product Dimensions: 8.5in. W x 10.5in. D x 1.75in. H (21.59 x 26.67 x 4.45 cm)
  
• Product Weight: 4.10 lbs. (1.9 kg)
  
• Shipping Dimensions: 15in.W x 11.25in.D x 4.75in.H (38 x 28.6 x 12cm) single unit
  
• Shipping Weight: 6.75 lbs. (3.1 kg)
  

Features:

• Space-saving 1/2-rack design combines easily with other Russound 1/2-rack products
  
• Class D amplifier
  
• Powerful 100 watts per channel at 8 ohms
  
• Bridgeable to 225 watts at 8 ohms
  
• 12v trigger input and output for automated turn-on
  
• Buffered line output for easy expansion to additional amplifiers as needed
  
• Easy-to-Use cable lock included to prevent unwanted disconnects when servicing an installation
  
• Removable screw-down speaker connectors for easy, reliable connections
  
• Rack mount ears for both 1/2-rack and full-rack width mounting are included in the box
  
• International Power Supply - Order the A2100i model for use outside of the USA. Includes UK, EURO, and AUS cords
  

Overview:

The A2100 Digital Amplifier is designed to add high quality, high powered stereo amplification to any audio system. Ideal for adding extra power wherever needed or for adding additional speakers as needed, it is the perfect choice for larger rooms or outdoor zones. The space-saving design allows for an easy fit in any equipment rack and the installer-friendly integration features allow it to blend seamlessly into a system and activate automatically with other devices as needed.

Review: