| Description: | Portable Audio Headphone Amplifier |
| Weight: | 157 grams (5.5 oz) including alkaline battery |
| Power Souce: |
- Optional Lithium-Ion Rechargeable System, or,
- 9-volt Alkaline, or, - 9.6V Lithium Non-rechargeable |
| External Power Supply: | Optional Lithium-Ion Charger |
| Battery Charge Time (approximate): | Lithium FastCharge System: <1.5 hours |
| Battery Life (approximate) | Alkaline: 50 hours Lithium-Ion: 40 hours Lithium NON-rechargeable: 100 hours |
| Maximum Gain: |
+20.6 dB (gain boost enabled)
+12.7 dB (gain boost disabled) |
| Frequency Response (20-20,000Hz, typical) : | +0.1dB, -0.4dB |
| -3dB Point (typical) : |
21 kHz at top end;
9 Hz at low end |
|
Total Harmonic Distortion
(front panel, typical) |
0.0007% |
|
Intermodulation Distortion
(front panel, typical) |
0.005% |
|
Signal to Noise ratio
(20-20,000Hz, front panel, typical) : |
103dB |
|
Dynamic Range
(20-20,000Hz, front panel, typical) : |
103dB |
|
Bass Boost
|
+6dB @ 100Hz when enabled |
|
Treble Boost
|
+3dB @ 10kHz when enabled |
| Crossfeed |
Active, User-adjustable from mono to 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) |
| Integrated Voltmeter accuracy (typical) | ±100mV |
| Mechanicals |
Anodized aluminum case;
Glossy laser-anodized faceplate; Polished aluminum volume knob; FR-4 dual-layer Printed Circuit Board with 1 oz. copper |
| Other Features |
Flashlight Mode: Turns on both LEDs to full brightness; Dimming mode: Allows user to optionally dim the blue LED; Fully configurable amplification and buffering using gold-plated sockets. |
| 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. |