Wholesale Free Shipping Matrix "m-stage" Headphone Amplifier USB with OPA627AP Class A Biasing Mod
Introduction
The M-stage is a fairly basic headphone amp. It features 2 sets of RCA inputs on the rear, which are selectable via a switch on the front panel. It also has a line out which enables the unit to be used as a pre-amp. Aside from the input selection switch, the front panel features a single 1/4” headphone jack and a volume control knob. A power switch is located on the rear, just next to the IEC power cable receptacle. It really is a very simple design. The only somewhat unique feature is the pair of gain selectors on the bottom. Users can easily switch from 0, 10, 18, or 20 dB of gain, independent for each channel, with the simple flip of a few dip switches.
Features
Specifications
Output Power: 200 mW / 300 Ω, 400 mW / 60 Ω
Input Impedance: 47 kΩ
Output Impedance: Line out 60 Ω, headphone out 5 Ω
Frequency Response: 10 Hz (-0.3dB) - 35 KHz (-1 dB)
Signal / Noise Ratio: >95 dB @ 0 dB
Distortion: <0.001 % (6 mW / 300 Ω)
Power Requirements
Power: AC 220-240V 50/60Hz or AC 100-120V 50/60Hz
Power Consumption: <15W
Other Specifications
Weight: 1.5KG
Dimensions: 28 x 11 x 4.2 (L x W x H cm)
Accessories
Power Cable (US/EU/AU optional)
User’s manual (Chinese/English)
Accessories
All latest versions of Windows and Mac OS