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Lear FSM-2 V2 Portable Headphone Amplifer

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Lear FSM-2 V2 Portable Headphone Amplifer
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INTRODUCTION LEAR FSM-02V2 is an integrated high-fidelity grade headphone amplifier with flexible and outstanding functions! FSM-02V2 is built with a total of 2 stage amplification circuits, plus an individual MOSFET Class-A channel; They are the individual hardware EQ (Equalizer) plus individual power amplification and the individual switchable MOSFET Class-A output stage. Each of the EQ and power amplification circuit has a 3 step control, which can be used to select the Crystal clear high, completely Bypass or powerful bass sound style and also the Low, Mid or High Gain for perfect matching with different impedance earphones and headphones. The MOSFET Class-A channel is switchable with the 3 step On/Off switch and output directly from an individual 3.5mm headphone jack. There are no OPAMPs or fixed circuit design which can work perfectly with all headphones, so we made the FSM-02V2 to become OPAMP exchangeable plus amplifier module exchangeable, it lets you to make your own choice of OPAMPs or fined tuned module selection , they give the best performance for any of your gears! The exchangeable power amplification stage means you can exchange LEAR or 3rd party designed and made module (it can be an special tuned parallel OPAMP module with own gain stage or the sound enhancement effect module ...etc.)to achieve their special goals! FSM-02V2 supports an external power supply from DC5V~18V, so it can easily become one of your high quality desktop amplifier, and also the built in Li-Poly rechargeable battery can be charged via USB and work at the same time! FEATURES At least 6 different sound style inside 1 machine when using with any headphones (There are 2 EQ+Bypass for both Phone out and independent Class-A out) OPAMPs (1 for EQ stage , 1 for output amplification and 1 for Class-A) are exchangeable. Amplifier module is user exchangeable (Announced later on http://lear.hk),replace by LEAR or 3rd party design! 3 step (Lo/Mi/Hi) GAIN control for the best matching with both low and high impedance earphones/headphones. Independent MOSFET Class-A output for enjoy the "Tube Amp" sound at the independent 3.5mm output jack(Normal output and Class-A output are separated to 2 independent 3.5mm headphone jack and which is on/off selectable via a 3 step switch) Built in 3000mAh Li-poly rechargeable battery and charging via standard USB or DC5V USB adapter. Support External power supply form DC5V to 18V (Regulated power supply is recommended), simply change the FSM-02V2 to a desktop grade amplifier.

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