Ultimate UHC4 - Bridging and 2+1 Mode

5
1.4 Installation- Self-
Bridging, 2+1 Mode
BRIDGED MONO- UHC4UHC4, , UHC2UHC2
Connect a 4Ω or 2Ω ohm speaker or
multiple speaker load to the terminals
marked “(+), BRIDGE, (-)”, making
sure they match the polarity of the
connections at the speakers.
Caution!
⇒ Speaker or multiple speaker loads totaling less than 4 ohms are not
recommended for “Bridged” or “2+1 Mode” to the 4 channel output
terminals of the UHC5UHC5, and may damage the amplifier.
2+1 MODE- (TRI-MODE)
Simultaneous stereo and mono operation, “2+1 Mode”, requires a passive
crossover to send low frequencies to the mono speaker and higher
frequencies to the stereo speakers. The following table lists the
component values for a 6 dB/Octave crossover at common frequencies
using 4 ohm speakers:
FREQUENCY INDUCTOR CAPACITOR
80 Hz 7.5 mH 470 uF
100 Hz 6.5 mH 330 uF
120 Hz 5.5 mH 330 uF
150 Hz 4 mH 220 uF
2+1 MODE WIRING DIAGRAM-
Use 100 Volt, non-polar capacitors, and connect them in series with the
stereo speakers as shown in the diagram. Connect the inductor in series
(+)
(
-
)
+
-
(+)
(
-
)
(+)
(
-
)
(+)
(
-
)
4 Ohm 16 Ohm12 Ohm8 Ohm
SERIES CONNECTION USING 4 OHM SPEAKERS
A
M
P
L
I
F
I
E
R
O
U
T
P
U
T
(L+) (L-) (R+) (R-)
( + ) ( - )
BRIDGE
SPEAKER