REAR PANEL
1-800-854-2235
www.carvin.com
A
US
H400
HEADPHONE AMP
SERIAL NUMBER
90-250 VAC
INTERNAL FUSE
10 VA 50-60Hz
CH 1
CH 2
CH 3
CH 4
AUX OUTPUTS
LEFT
B
RIGHT
B
LEFT
A
RIGHT
A
GND
LIFT
GND
LIFT
MADE IN
THE
3
4
H400
FOUR CHANNEL
..
HEADPHONE AMP
INPUT A
010
5
010
5
010
5
INPUT A
010
5
010
5
010
5
INPUT B
LEVEL
PHONES
INPUT B
OUT
AUX IN
MONO
PHONES
PHONES
AUX IN
PK
SIG
AUX IN
MONO
OUTPUT
LEVEL
PHONES
OUT
AUX IN
MONO
X IN
NO
POWER
12
14
14
13
13
FRONT PANEL FEATURES:
1. AUX INPUT JACK
Receives stereo or mono inputs from sources to be heard only at
the related PHONES output. Adjust the input level with the LEVEL
PHONES control then adjust INPUTs A&B accordingly.
2. PHONES OUTPUT JACK
Plug headphones into this jack. Start with the LEVEL PHONES at a
low setting to avoid damage to your hearing or to headphones.
3. PHONES LEVEL CONTROL (AUX IN)
Adjusts the output volume heard at the PHONES jack and the input
level from the AUX IN jack.
4. INPUT A CONTROL
Adjusts the volume of INPUT A going to the LEVEL PHONES heard
at the PHONES jack for the related channel 1-4.
5. INPUT B CONTROL
Adjusts the volume of INPUT B going to the LEVEL PHONES heard
at the PHONES jack for the related channel 1-4.
6. SIG LED
Shows when a signal is present at the PHONES jack output.
7. PK LED
Shows when the output signal of the channel is being overdriven.
Reduce the PHONES LEVEL control if the LED lights.
8. MONO AUX IN SWITCH
Pressing the MONO AUX IN switch IN causes the AUX IN jack to
receive signal from the TIP conductor only, sending the same
signal to Left and Right.
9. MONO OUT SWITCH
Pressing the MONO OUT switch IN sends the same MONO signal
to both the Left and Right sides of the PHONES jack.
10. POWER
Push this switch to the UP position to apply power to the unit.
The POWER LED will display to show that the
H400
is on.
REAR PANEL FEATURES:
11. LINE CORD:
The exclusive built-in auto switching power supply allows you to
connect any voltage from 90 to 255v 50-60Hz. Use a 3-conductor
line cord for maximum safety. If the
H400
is to be plugged into a
2-prong outlet, use a quality 3-to-2 prong grounded adapter. Do
not defeat the grounding pin of your AC line cord.
12. AUX PHONES OUTPUTS 1-4:
These jacks are connected in parallel with the corresponding
PHONES jacks on the front panel. When using both the front and
rear outputs of a channel, use headphones of similar
impedances. Using headphones of different impedances on the
same channel may result in radically different volume levels.
13. XLR AND 1/4” INPUT JACKS A&B:
Connect your inputs here. Adjust the levels at each output
channel with the INPUT A and INPUT B controls. If MONO
sources are being monitored, use the MONO OUT switches on
the front panel. A total of four MONO inputs can be used in this
case.
14. GROUND LIFT SWITCH:
This switch lifts the grounds on the inputs and outputs when
pressed IN. This is useful for eliminating ground loops.
11
8
7
6
FRONT PANEL
9
13
13
1
3
2
4
5
10