9
8
How to Connect Your Portable Desktop Amp
How to Connect your Portable Desktop Amp
#2 To a home CD player or other Analog Sources via RCA outputs
#1 To a portable player via Headphone jack or line out.
If your source has RCA outputs, an RCA to RCA interconnect cable will connect the
Portable Desktop. Plug the RCA inputs into the back of the Portable Desktop Amp, and
connect the other end to the line output of your analog source. If your source only has
an 1/8in line out or a headphone jack, then go up to #1. If your CD player has digital
outputs, skip to the next page.
- Switch the Source Selector Switch to analog.
- Switch Analog Input Switch to unbalanced.
All hard drive & CD players provide a headphone jack.* An RCA to Mini Cable will al-
low you to connect the headphone jack/line out of your player into the RCA inputs on
the Portable Desktop and a mini to mini cable will allow you to connect to the mini
outputs on the Portable Desktop. Be sure to note that as always, red or ‘R’, designates
right channel on RCA inputs. On the front panel, switch the Source Selector Switch to
analog
.
*Use line out if your player has it. Line out bypasses the player’s volume control completely; use
the amp’s instead.
RCA Inputs
Interconnect Cable
RCA Mini Cable
Headphone Jack
RCA
Inputs
RCA Outputs
#4 DAC Option: To your Computer or other digital source via USB,
coaxial, or optical output
The most convenient and common way to get a high quality signal out of your com-
puter or UMPC is with the USB output. (If you have optical or coaxial outputs on your
machine, then skip to the next section.) Simply plug a USB cable into your computer,
and plug the smaller end into the back of the amp. In most cases your computer will
instantly recognize the amplifier, but you will need to restart your music management
program. If your computer does not recognize the device, restart; if it still is not rec-
ognized, you may need to go into your control panel/audio devices or system prefer-
ences/sound output and select ‘USB Audio Codec’ as your default audio device.
- Switch the Source Selector Switch to ‘digital’.
- Switch the Digital Input Selector Switch to‘USB’.
Connecting to your Computer:
You will need an appropriate optical cable, visit headphone.com to purchase a cable.
Plug one end into your source and connect the other end into the appropriate input on
the back of the amp.
- Switch the Source Selector Switch to ‘digital’.
- Switch the Digital Input Selector Switch to ‘optical’.
USB
USB Input
Mini to RCA Cable
RCA Inputs
Most self-powered speakers have RCA inputs, in which case you will use a 1/8in mini
to RCA cable to attach to the Portable Desktop Amp. Attach the cable to the pre-amp
output on the rear of the Portable Desktop Amp. Plug the other end into the input of
your speakers.
#3 Using Self Powered Speakers with the Desktop Portable
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom w
ww.headphone
.com toll free 800-82
8-8184 outside U.S. 1-406-587-9466
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom w
ww.headphone
.com toll free 800-82
8-8184 outside U.S. 1-406-587-9466
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom w
ww.headphone
.com toll free 800-82
8-8184 outside U.S. 1-406-587-9466
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom www.headpho
ne.com toll free 800-828-8184 outside U.S. 1-406-587-9466
pre-amp
output
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom w
ww.headphone
.com toll free 800-82
8-8184 outside U.S. 1-406-587-9466
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom w
ww.headphone
.com toll free 800-82
8-8184 outside U.S. 1-406-587-9466
optical Cable
Optical Input
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom w
ww.headphone
.com toll free 800-82
8-8184 outside U.S. 1-406-587-9466
mini optical
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom w
ww.headphone
.com toll free 800-82
8-8184 outside U.S. 1-406-587-9466
To A home CD player with Optical/Coaxial outputs:
You will need an appropriate coaxial or optical cable, visit headphone.com to purchase
a cable. Plug one end into your source and connect the other end into the appropriate
input on the back of the amp.
- Switch the Source Selector Switch to ‘digital’.
- Switch the Digital Input Selector Switch to ‘coaxial’ or ‘optical’.
optical input
USB input
optical
USB
digital input
selector
coaxial
power
source
5 VDC
digital
analog
+/- 15 VDC
5 VDC battery
coaxial input
source
selector
1/8”
input
battery
+/- 15VDC
power input
L
R
parallel analog inputs (use one only)
+
HeadRoom w
ww.headphone
.com toll free 800-82
8-8184 outside U.S. 1-406-587-9466
Coaxial Cable
Coaxial Input
optical Cable
Optical Input
mini Input
Mini-Mini Cable
mini B
A
