| Description: | Portable Audio Headphone Amplifier |
| Weight: | 140 grams (4.9 oz) including alkaline battery |
| Power Souce: |
- 9-volt alkaline, NiMH, NiCd battery, or,
- 8.4-volt NiMH or NiCD battery, and/or, - External Power Supply |
| External Power Supply: |
1.3mm Barrel-type connector power jack, center pin positive. If using built-in NiMH battery charger:
If not using battery charger: Optional Lithium charger can also be used. |
| Battery Charge Time (using built-in charger, typical): | Lithium FastCharge System: 2 hours Trickle charge NiMH: 15 hours |
| Battery Life (typical) | Alkaline: 50 hours Lithium: 40 hours |
| Maximum Gain: |
+23.1 dB (gain jumpers in)
+12.7 dB (gain jumpers out) |
| 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
(typical) |
0.002% |
|
Intermodulation Distortion
(typical) |
0.007% |
|
Signal to Noise ratio
(20-20,000Hz, typical) : |
100dB |
|
Dynamic Range
(20-20,000Hz, typical) : |
100dB |
|
Bass Boost
|
+6dB @ 100Hz when enabled |
| Crossfeed |
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. |