Lab 12 HPA Owner's Manual - page 6
LAB12 HPA Handcrafted Tube Headphone Amplifier/Preamplifier with Usb Dac
Rear Panel
HPA Rear panel
In rear panel you will find the connection inputs and outputs.
On the left side is the selector knob (A). You can select thru a USB and two analog inputs.
Bellow the selector knob you can see the USB (type B) input (B). USB can receive audio signals up to
48Khz/16bit.
On the right of selector and USB input you will find the two analog RCA inputs named 1 and 2 (C
and
D).
In the middle of rear panel you will also find the preamplifier out with a pair of single-ended RCA
analog audio output connectors (E).
Bellow the preamplifier output it is a coaxial output (F). You can receive the USB digital signal to
connect to another DAC.
To the right side you will find an IEC AC input (H). Below IEC input is located the main fuse holder
(I) and the Power switch (J).