Four independent stereo headphone amps in a half 1RU package.

The 4-Channel SM Pro Audio Q-AMP Enhanced Headphone Amp delivers high-quality audio in a stylish, small-footprint unit. Upgraded to include SM Pro Audio's E-Series circuit design improvements, the Q-AMP demonstrates how SM Pro Audio's compact Value series of audio products has received a major revision in terms of appearance and performance.

E-Series circuit design, component selection, and manufacturing offer an additional level of quality to the already successful HP4V.

The headphone amp is housed in a stylish extruded aluminum external chassis that can be rackmounted using SM Pro Audio's RM-1 single unit rackmount adaptor. A single Q-AMP can be mounted in the center of the rack, or 2 Q-AMPs can fit side by side. SM Pro Audio includes robust connectors for all of the Q-AMP headphone amp's inputs and outputs.

SM Pro Audio Q-AMP Enhanced 4-Channel Headphone Amp Features:

• Four independent, high-power stereo amplifiers in half-1RU package
• High-quality audio even at extremely high volume levels
• Two independent stereo input sections
• 1/4" (6.5mm) and 1/8" (3.5mm) stereo headphone outputs per channel
• Output level control for each channel
• Independent selection of input for each output
• High-quality components and rugged construction

Why pay more for a headphone amp when you don't have to? Order today!

SM Pro Audio Q-AMP Enhanced 4-Channel Headphone Amp Specifications:

• Audio Inputs:
• Connectors: 1/4" jack
• Type: unbalanced
• Impedance: 47k Ohms
• Peak input level: +25dB
• Gain control range: 40dB
  
  Headphone Power Amplifier Outputs:
• 1/4" and 1/8" stereo outputs
• Max. output level 300mW@32 Ohms (max 1W@32 Ohms)
• Output impedance 22 Ohms
• Max. gain +20dB
  
  Dist, Freq, S/N Ratio & Crosstalk:
• Frequency response: 20Hz~20kHz, 0dB~-2dB
• Distortion: 0.02%
• S/N Ratio: better than 80dB
• Crosstalk rejection: >72dB@1kHz;-20dBinput
  
  Power Supply:
• Mains voltages: USA/Canada ~ 120V AC, 60Hz
• General export model: ~ 100-120V AC, ~ 200-240 V AC, 50-60Hz
• Power consumption: 6.5VA
• Fuse: 100-120 V AC: 630 mA (slow-blow)
• 200-240 V AC: 315 mA (slow-blow)
• Mains connection: Using External Power Supply 16Vac
• Physical Dimension (HxWxD): 1 3/4" (44.5mm) , 19" (482.6mm), 8 1/2" (217mm)
• Net weight: approx. 3.15 kg