| Description | Portable Audio Headphone Amplifier |
| Weight | 157 grams (5.5oz) |
| Power Source | Lithium-Ion Rechargeable System, or,
9-volt Alkaline, or,
9.6V Lithium non-rechargeable |
| External Power Supply | Optional Lithium-Ion adapter/charger, 120-240VAC, 50/60Hz worlwide compatible |
| Battery Charge Time (approx.) | 1.5 hours |
| Battery Life (approx, depending on installed options | Alkaline: 50 hours
Lithium-Ion: 40 hours
Lithium NON-rechargeable: 100 hours |
| Maximum Gain | +12.7dB (Gain Boost disabled)
+20.6dB (Gain Boost enabled) |
| Frequency Response (20-20,000Hz, typical, front panel input | +0.1dB, -0.4dB |
| -3dB Point (typical, front panel input) | 21 kHz at top end
9 Hz at low end |
| Total Harmonic Distortion THD (typical, front panel input) | 0.0007% |
| Intermodulation Distortion (typical, front panel input) | 0.005% |
| Signal to Noise ratio (20-20,000Hz, typical, front panel input) | 103dB |
| Dynamic Range (20-20,000Hz, typical, front panel input) | 103dB |
| Bass Boost (approx.) | +6dB @ 100Hz |
| Treble Boost (approx) | +3dB @ 10kHz |
| Crossfeed | Active, user-adjustable from mono to near-stereo using potentiometer;
User can bypass using pushbutton |
| Auto Power-OFF | User selects between 1, 3, or 6 hour poweroff interval, or unit can be set to stay on indefinitely. |
| Status Indicators | Two LEDs (one blue, one amber), indicating: low battery warning, battery voltage, and power |
| Integrated Voltmeter accuracy (typical) | ±100mV |
| Mechanicals |
- Anodized aluminum case
- Glossy anodized & etched face plate
- Polished aluminum volume knob
- FR-4 dual-layer impedance-controlled Printed Circuit Board with 1 oz. copper
|
| Output Impedance | User-switchable between 0Ω and 75Ω |
| Convenience |
- Fully configurable amplification and buffering using gold-plated sockets.
- Turn on both LEDs to full brightness;
- Dimming mode: Allows user to optionally dim the blue LED;
|
| USB DAC | Texas Instruments/Burr-Brown PCM2704 USB DAC, 0.006% THD; 44.1/48kHz, USB 2.0 Compliant; Native compatibility with Windows XP, Vista; MAC OSX, OS9; most Linux installs. |
