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In your basket: 0 Article, 0,00 EUR
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Bobby
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The is the brandnew BOBBY Pure-Class-A, Fully Balanced Headphone Amplifier. Can be used with balanced headphones, but also with normal 6.35mm plug headhones. High & low impedance heaphones are supported. High End Digital Volume Control. Selection buttons for Source, Stage and Gain. Great LED information display.
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Features
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Probably the Best and most High End Buy in the market today at this price level !
The new Bobby is a Pure-Class-A, Fully Balanced Headphone Amplifier with both single-Ended Signals/Inputs and Balanced Signals/Inputs interface. With a high-quality digitgal volume control chip (PGA2311) Bobby does reduce the distortion of the sound & error. The audio signal is enhanced by four fully identical amplifying circuits, Tone Tuning by high-quality active/passive components (Wima, Vishay BC). The appearance of Bobby with it's black and sliver color, showing the good brand image of Firestone Audio.
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Firestone Audio Bobby Class A, Balanced Headphone Amplifier
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Take a closer look ! (click to view)
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Specifications
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Amplifier Structure：Compose by four Operational
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Amplifiers and Medium Power Transistor. High current
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High amplitude and fully balanced with bias control.
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Power Structure: Automatic transfer switching equipment with low noise, Stand by and Power on mode, Tow-leveled Power supply adjustment.
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Headphone Impedance: 16 ohm to 600 ohm.
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Volume Control: Three-leveled switch
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(±0.5dB, ±1dB, ±2dB), with mute control.
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Circuit Protect: Output short / over current protect.
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Digital Volume Control： TI – PGA2311
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Operational Amplifier： TI – OPA604
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Power Transistor: IR – IRF630 / IRF9630
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Dimensions
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Depth : 310 mm without volume button. Add 22 mm for volume button.
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Width : 220 mm
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Heigth : 55 mm without feet, 63 mm with feet
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Weight : 3429 gram
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Audio Performance
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Audio Performance - RCA input (1kHz sine wave, 2Vrms output)
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Frequency response (From 40Hz to 15kHz),dB :+0.02~-0.13
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Dynamic range ,dB (A) : 103.8
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THD% : 0.0003
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Stereo crosstalk dB:-104.3
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Audio Performance - RCA standard input (1kHz sine wave, 2Vrms output)
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Frequency response (From 40Hz to 15kHz),dB :+0.02~-0.13
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Dynamic range ,dB (A) : 106.5
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THD% : 0.0003
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Stereo crosstalk dB:-104.6
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Audio Performance - XLR input (1kHz sine wave, 2Vrms output)
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Frequency response (From 40Hz to 15kHz),dB :+0.02~-0.13
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Dynamic range ,dB (A) : 103.5
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THD% : 0.0004
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Stereo crosstalk dB:-104.5
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Audio Performance - XLR standard input (1kHz sine wave, 2Vrms output)
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Frequency response (From 40Hz to 15kHz),dB :+0.02~-0.13
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Dynamic range ,dB (A) : 106.0
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THD% : 0.0003
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Stereo crosstalk dB:-106.1
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Connectivity
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Line Input : 1 RCA jack (Single-Ended) & 1 XLR jack (Balanced)
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Line Output : 2x 6.3mm phone jack (Single-Ended) & 1 XLR phone jack (Balanced)
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Scope of Supply
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Bobby
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Power cable
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User manual
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Warranty card
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Review
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Read the Review of Francesco Donadel Campbell from HDPHONICReview BOBBY Headphone Amplifier
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