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Cute Beyond
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"Cute Beyond" headphone Amplifier
Available with Grey and Blue faceplate.
This class A Amplifier is optimized for a wide range of load impedances, suitable almost all the headphones from ER4P (27 ohm) to AKG K240DF (600 ohm). This high bandwidth, extreme low noise design (lower than -107db) yields greater than 105 dB of dynamic range and exceeds the capabilities of the human ear, ensuring to handle any difficult headphone.
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Two gain settings, selectable by a convenient switch, allow for quick and easy optimization for high or low efficiency headphones. With user changeable opamps and Shunt/Series type input volume control to suit different tastes.
Other features include Short Circuit, Thermal protection, and external auto switching power supply 100-240VAC.
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Specifications
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OPA2227 for main amplifier, current boosters made by NPN/PNP power transistors
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Class A amplifier
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Extra low output resistance ( Zo < 0.05 ohms),high current capacity ( 200mA per channel)
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6Hz~300Khz ,-1dB at 100 ohms loading,very low noise
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Max. output 6Vrms ( 24VDC adaptor), internal gain control switch (Low/High), easy to match 8 to 600 ohms headphones
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Volume control free to switch to Series or Shunt, for more sensitivity.
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OPAMPS are exchangeable. You can swap and tune tone yourself
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"Anti-dummy" power supply protection, 110V/220V auto-switching adaptor
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Size: 11 x 8 x 5 cm
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Weight: 500g
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Available front plate colors: Red, Blue, Gray
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Headphone Match Table
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| 600 |
60 |
106 |
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| 300 |
120 |
118 |
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| 120 |
300 |
119 |
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| 75 |
480 |
119 |
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| 32 |
320 |
121 |
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