Audio
| Output impedance |
22 Ω |
| Frequency range |
20 - 20000 Hz |
| Input impedance |
47000 Ω |
| Crosstalk (1kHz) |
68 dB |
| Signal-to-Noise Ratio (SNR) |
80 dB |
| Total Harmonic Distortion (THD) |
0.02% |
Ports & interfaces
| Line outputs (RCA) |
4 |
| AC (power) in |
Y |
Additionally
| On/Off switch |
Y |
| Wireless technologies |
Wired |
Unbalanced, 47k Ohms In, 20Hz-20kHz, S/N 80dB, 1/4" jack, 3.15Kg
<b>Features:</b>
- Four totally independent stereo high-power headphone amplifier/line distribution channels in a convenient single rack package
- Easy-to-operate unit allows maximum variety of monitoring and stereo line level signal distribution options
- Input source select switches and Phone and Line 1/4” TRS stereo outputs on each channel
- Four independent stereo input sections (each with servo-balanced L/R 1/4” TRS jacks) enable independent selection of any of the four stereo signals for each headphone amp/line distribution channel
- Selection of up to four completely independent monitor signals for each set of headphones connected to the HPA-4 allows optimum monitoring flexibility, or four separate choices for each channel’s Line Output (enabling many audio switching/routing solutions)
- Separate volume control for each channel adjusts the level to both phone and parallel line outputs
- Easily expandable for optimum versatility in any application—up to four HPA-4s can be daisy-chained for additional fully selectable headphone/line distribution requirements
- No-compromise circuit design, stringently selected tight-tolerance components and low-noise, extremely linear amps for reference-quality, transparent audio with maximum headroom even at extremely high headphone volume levels
- High-quality, rugged construction for maximum reliability
- Shielded internal dual regulated power supply with ~115V(60Hz)/~230V(50Hz) select switch and fused IEC power cord connector
