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Hi-Fi Amplifier > Cute Beyond Headphone > Firestone Audio Co., Ltd. |
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Feature Cute Beyond is a kind of Pure Class-A Headphone Amplifier with low noise/low distortion features. Adopting both Series and Shunt types can let the users select their ideal type of Volume Control. High electric current output can pretty much drive headphones of any impedance. OP amplifier can be changed by yourself to turn the tone. Using Cute Curve can easily make you enjoy high-quality and awesome sound. Technical Specifications * Amplifier Structure : Coupling capacitor less, Single-End with Class-A * Power Structure : Virtual-Ground power supply * Gain Control : Low (attenuation 20dB) / High (normal) * Volume Control : Series / shunt mode selectable * Headphone Impedance : 32 ohm to 600 ohm * Circuit Protect : Output short / over current protect * Main OPAmp : TI ? OPA2604 * Servo OPAmp : TI ? TL072 Audio Performance (1kHz sine wave, 2Vrms output) Frequency response (From 40Hz to 15kHz) : 40Hz +0.01dB, 15kHz -0.02dB Noise level (1kHz, A-Weighted) : -104.7dB Dynamic range (1kHz, A-Weighted) : 104.6dB THD% : 0.0018% Stereo crosstalk : -90.0dB Connectivity * Line Input : 1 of RCA jack * Line Output : 1 of 6.4mm phone jack System Requirements * Using in any equipment with Line-out or Pre-out function Package Contents * Beyond * DC24V 0.5A power adapter * User manual * Warranty card * Wrench Service & Technical Support If you have any problems about using this product, please contact distributors of Firestone Audio Corporation; send the E-mail to the E-mail address of Firestone Audio Co., Ltd. or directly contact to our company. The following is the information of Firestone Audio Corporation: Firestone Audio Co., Ltd. Address: Rm. 2, 19F., No.97, Sec. 4, Chongsin Rd., Sanchong City, Taipei County 241, Taiwan (R.O.C.) Website: http://www.firestone-audio.com E-mail Address: tech@firestone-audio.com.tw
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