Rolls Bellari HA543 Headphone Amplifier

The Bellari HA543 sets a new standard for what is possible in a headphone amp. With XLR balanced inputs, 1/4” and 1/8” headphone outputs, a Pass thru (RCA out) that also works when using the XLR inputs, Mute switch, Power switch and Enhance feature. The Bellari HA543 is a truly remarkable headphone amp. While the HA543 is not the least expensive headphone amplifier available it is truly one to own.

Key Features

• Stereo XLR balanced inputs
• 1/4” and 1/8” headphone outputs
• Pass thru (RCA out) that also works when using the XLR inputs
• Mute, Power switch and Enhance feature

Technical Specifications

Input Impedance
10K Ohms unbalanced - 20K Balanced
Max Input Level
+14 dBV
Max Gain
20 dB
Output Power
326 mW/side, 652 mW/Channel (62 Ohms)
Frequency Response
3 Hz - 59 kHz +/- 3 db
S/N Ratio
92 dB
THD
<.008%
IMD
<.008%
Phase Shift (In to Out)
less than 10 deg.
Slew Rate
2 V per microsecond
Crosstalk
- 75 dB
Size
4.5” x 1.5” x 3”
Headphone impedance
8 Ohms to 600 Ohms