KEY FEATURES
-6-channel headphone amplifier with 3 headphone outs per channel
-Main input gain control, individual channel headphone output gain control
-Individual channel Left/Right muting and Mono switching
-Front panel Direct In
-Dedicated LED level metering for Main In and individual channels
-Individual channel Aux In with Balance control knob to mix Main and Aux levels
-Main Output for daisy-chaining multiple units
-Balanced Main Inputs and Outputs
-Left and Right Mute and Mono/Stereo monitor switches with dedicated LED's per -channel
-Dual voltage power supply for transformer-free international use
DESCRIPTION
The Alto HPA6 is a moderately priced and feature-laden 6-channel stereo headphone amplifier, offering 3 headphone outputs per channel, distributed between the front and rear panels.
The HPA6 features individual output control and level metering for each channel, in addition to Left and Right Mute switching, Mono/Stereo monitor switches, and Balance controls for mixing the Main and Aux input levels on each channel. The rear panel Main inputs and outputs are balanced, on XLR and 1/4" TRS connectors, and the power supply is a convenient dual voltage type.
The HPA6 is a low-noise, high-value solution for stage or studio headphone monitoring.
SPECIFICATIONS
| Number of Channels | 6 |
| Input Connections | Rear: 2 x XLR Female Main Inputs, Balanced 2 x 1/4" TRS Phone Main Inputs, Balanced Front:1 x 1/4" Stereo Phone Direct In 6 x 1/4" Stereo Phone Aux In |
| Output Connectors | Rear: 2 x XLR Male Main Outputs, Balanced 2 x 1/4" TRS Phone Main Outputs, Balanced 12 x 1/4" Stereo Headphone Outs* Front: 6 x 1/4" Stereo Headphone Outs * 6 pairs labeled Headphone Out 1,2,3,4,5 and 6, wired in parallel with corresponding front panel Channels 1,2,3,4,5, and 6 Headphone Outs |
| Maximum Output Level | 21 dBm |
| Function Controls | 1 x Input Gain Knob 6 x Balance per Channel Knobs 6 x Output Gain per Channel Knobs 6 x Left Mute Switches(with Indicator) 6 x Right Mute Switches(with Indicator) 6 x Mono/Stereo Mode Switches(with Indicator) |
| Frequency Response | 10 Hz - 50 kHz, /-3 dB |
| THD N | 0.005% typ.@ 4 dBu, 1 kHz, Gain 1 |
| Noise | >90 dB, unweighted, 22 Hz - 22 kHz(>95 dB @ 4 dBu) |
| Display | 1 x 8-digit LED Meter Bars(Input)* 6 x 4-digit LED Meter Bars(Output)** *-18/-12/-6/0/ 6/ 12/ 18dbu/Clip **-24/0/ 12dBu/Clip |
| Dimensions | 19 x 8.5 x 1.7" (483 x 217 x 44mm) |
| Weight | 6.4 lb (2.9 kg) |
| Specialties | Dual Voltage Power Supply 3 Headphone Outputs per Channel Mono/Stereo Monitor Switching for each Channel |
