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How To Use - JB Systems amp 150.4 Bedienungsanleitung

4 channel class-d amplifier
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14. BINDING POST output CH2: use this output when the speaker cable has no Speakon
15. SPEAKON output CH1+2: this Speakon
 CH1: 1+ = positive (red) wire, 1- = negative (black) wire
 CH2: 2+ = positive (red) wire, 2- = negative (black) wire
 BRIDGE: 1+ = positive (red) wire, 2- = negative (black) wire
16. OPERATION MODE switch: Used to set the operation mode of amplifier 1 (CH3+4):
 STEREO: The most common operation mode, CH3+4 are routed to their corresponding outputs.
 PARALLEL: only the mono signal on input channel3 (17) is used to drive both outputs CH3+4.
 BRIDGE: used when you need more power. Only the mono signal on input channel3 (17) is used
to drive the combined "bridged" output. Only speakers with impedance >8ohm are allowed.
17. XLR input CH3: you can connect a balanced or unbalanced signal, both XLR and ¼" jacks can be used.
18. XLR input CH4: you can connect a balanced or unbalanced signal, both XLR and ¼" jacks can be used.
Only used while amplifier 2 works in stereo mode (16).
19. BINDING POST output CH3: use this output when the speaker cable has no Speakon connector.
20. BINDING POST output CH4: use this output when the speaker cable has no Speakon
21. SPEAKON output CH3+4: this Speakon
 CH3: 1+ = positive (red) wire, 1- = negative (black) wire
 CH4: 2+ = positive (red) wire, 2- = negative (black) wire
 BRIDGE: 1+ = positive (red) wire, 2- = negative (black) wire
22. POWER input: Use the supplied power cable to connect the amplifier to the mains. This connector also
holds a 20mm glass fuse. Always replace a blown fuse by another with exactly the same specifications.
(fuse specifications can be found on the rear panel, next to the power input connector)

HOW TO USE

Both amplifiers can be configured separately in 3ways to obtain several configurations.
STEREO OPERATION ON ALL 4 CHANNELS:
Used to drive 2 stereo outputs (4 channels): 4x 80Wrms @ 8Ω ~ 4x 150Wrms @ 4ohm.
Using binding post outputs:
®
Using SpeakON
outputs:
 Connect the stereo audio signals to the inputs 1+2 (11/12) and 3+4 (17/18)
 Set the operation mode switches (10/16) to "stereo"
 Connect the speakers to the outputs as shown on the drawings.
 Set input gain knobs (3/4/5/6) to zero
 Make sure there's a music signal at the input
 Turn the amplifier on (2)
 Adjust the gain knobs (3/4/5/6) to the desired level
JB SYSTEMS
®
®
output is a combined connector for both CH1 and CH2.
®
output is a combined connector for both CH3 and CH4.
4/34
USER MANUAL
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connector.
®
connector.
AMP 150.4

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