Product Code: HPA
The HPAJr Headphone Amplifier is a compact, battery / external dc powered unit designed to interface full-sized professional headphones to a variety of audio input sources. Now you won't be limited to small, poor quality "in-ear" or "walkman" type headphones for your monitoring or listening needs.
The HPAJr will allow you to drive headphones of many impedances to more than adequate listening levels with a full, rich sound not obtainable at low output levels or with lightweight "personal" earpiece / headphones.
You can use the HPAJr for such professional purposes as increasing monitor levels from: mixers, portable VCR's, tape recorders or R-DAT's; personal listening to keyboards and synthesizers or monitoring of home studio gear. Compact and durable, the HPAJr comes with a sturdy belt clip for complete portability.
SPECIFICATIONS:
| Frequency Range: 5Hz - 30kHz. +- 0.25dB
|
| Operational Modes: Stereo or Mono selectable.
|
| Input: ¼" Phone jack. 50k ohm impedance.
|
| Input Sensitivity (Selectable): @ -10dBm = 245mV @ -30dBm = 25mV
|
Output: ¼" jack. 4 ohm - 600 ohm impedance.
"Y'' Cable:.... HPA Jr will drive 2 headphones on a "Y'' cable but the
total load impedance should not be less than 8 ohms.
|
Total Output Level:
| Power Supply
| Output Z
| Output Power
| Output Voltage
|
|---|
| 12V
| 600 ohms
| 120mW
| 6V
|
|---|
| 12V
| 8 ohms
| 3W
| 3.5V
|
|---|
| 18V
| 600 ohms
| 160mW
| 7V
|
|---|
| 18V
| 8 ohms
| 5W
| 4.5V
|
|---|
| Power requirements: Batteries - 2 @ 9V (alkaline preferred). External - 12Vdc - 18Vdc @ 300mA via 3.5mm jack.
|
| Approvals: -
Emissions: - EN 55022 B - FCC Class B Immunity: - EN 55024 B
|
| Size (W x H x D); Weight: 2-7/8" x 5¼" x 1½"; 8 oz.
|
| Case Material: Painted aluminium.
|
Price on application – please contact us.
