KV2 Audio ESP4000 User Manual
Page 10
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Important Information for using the ESP4000 in “Bridge Mono” Mode
As well as being a high quality multi channel amplifier solution the ESP4000 is capable of working in “Bridge Mono” mode.
This requires the utilisation of two channels working together to produce a larger single output - suitable for driving large sub-
woofers or high powered full range boxes.
CAUTION:
YOU CAN ONLY BRIDGE OUTPUTS 1 & 2 OR OUTPUTS 3 & 4. ATTEMPTING TO BRIDGE OUTPUTS
1 & 3 OR 2 & 4 COULD CAUSE SERIOUS AND PERMANENT DAMAGE TO THE AMPLIFIER AND THE LOAD.
To do this you must take the positive output from CH1 (RED) and feed the positive side of the high powered loudspeaker loud.
You must then take the positive output from CH2 (RED, situated directly below CH1’s positive red terminal) and feed the neg-
ative side of the high powered loudspeaker load.
This has correctly connected the high powered loudspeaker load to both CH1 & CH2 ready to be driven in Bridge Mono mode.
To ensure the amplifier channels are working together correctly in this mode you must feed the Main Input Signal into ONLY
CH1 before linking across to CH2 with a special phase reversal lead. To make this lead you must modify a standard XLR patch
cable so that pins 2 and 3 (Hot and Cold) are swapped AT ONE END ONLY. This results in Pin 2+ at one end going to Pin 3-
at the other. The Through Output of CH1 should then be connected to the Main Input socket of CH2 using ONLY THE PHASE
REVERSED CONNECTION LEAD.
The same can be done with CH3 & CH4 to provide two independent Bridge Mono amplifiers capable of delivering 1800W per
channel into 4ohms.
NOTE:
If Bridge Mono is your specific requirement, particularly driving subwoofers, you may prefer to utilise a KV2
Audio VHD3200 subwoofer amplifier which will of fer the same power output but with improved performance. For
applications where the high powered loudspeaker load is required to produce a full range signal, including Mid and
High frequency reproduction above 1kHz an ESP4000 will offer superior results.
Input level potentiometers of each bridged channel must be set to the same level. Channels 3 and 4 can also be used in the same way to achieve the same ends.
CAUTION
!
NOTE
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DESIGNED BY KV2 AUDIO
MANUFACTURED IN THE EUROPEAN UNION
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4ohm 1800W
Chapter 4: Running the ESP4000
in “Bridge Mono” Mode
PHASE REVERSE CABLE
SIGNAL INPUT