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GAIN

Min

Max

INPUT

HIGH LEVEL

Figure 1. Shows a diagram on how to connect the high level input. Using the optional 
Neutik lead, connect the XXLS400 to the output of your amplifier via your existing speaker 
plug or to a spare set of speaker terminals if available. In effect you are Bi-Wiring your 
XXLS400 to your power amp. Please note that the Neutrik cable has only three leads and is 
arranged this way to preserve the star earthing of your amplifier (assuming it has a star 
earth arrangement).

To connect the high level lead you will need to connect the RED wire to the RED terminal of 
the RIGHT hand speaker terminal of your power amp. Connect the WHITE wire to the Red 
terminal of the LEFT hand channel speaker terminal of your power amp. The BLACK wire 
is connected to either one of the BLACK speaker terminals of your power amplifier. This is 
important as some power amplifiers do not like their black terminals joined. Now plug the 
neutrik connector into the high level input of the XXLS400. The Neutrik plug will fit only one 
way as it has a key. Next push the plug in then turn clockwise until you feel it latch. To undo 
the Neutrik plug, pull back the silver lever on the Neutrik plug and turn counter-clockwise.

Please Note: 

It may not be possible or advisable to connect the high level input directly to 

an amplifier that has a class d digital output. Please check with the supplier of your 
amplifier that this form of connection is possible.

If you do have a class d amplifier and are unable to use the high level input, then BK have 
developed a sonicaly transparent isolator that overcomes this problem. Please contact us 
for further details.

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CONNECTING UP USING THE HIGH LEVEL INPUT

Figure 1.

Black

Red

Black

Red

RIGHT

LEFT

White

Red

Black

Method 1 - To Connect to a Power Amplifier Using the High Level Input

Neutrik Speakon Interconnect

Summary of Contents for XXLS400

Page 1: ...XXLS400 OWNERS MANUAL Subwoofer System...

Page 2: ...fety instructions 2 3 4 5 Setting up your XXLS400 6 Controls and their functions Connecting up your XXLS400 Connecting up using the high level input Connecting up using the low level input 7 Specifica...

Page 3: ...use this apparatus near water or allow to get wet 5 Keep well ventilated 6 Do not install near heat sources such as radiators stoves etc 7 Protect the power cord from damage 8 Disconnect from the powe...

Page 4: ...vel input are unbalanced and would normally be sourced from the LFE output of an AC3 decoder Alternatively the low level input can be connected to a dedicated sub out of a processor for single outputs...

Page 5: ...power amplifier This is important as some power amplifiers do not like their black terminals joined Now plug the neutrik connector into the high level input of the XXLS400 The Neutrik plug will fit on...

Page 6: ...cessor If a sub out is not available then you can use a spare set of pre amp outputs If you only have a single sub woofer output socket on your equipment then connect up using one of the pairs of lead...

Page 7: ...re on the low level input using a film track Adjust the gain control until the level of the bass from your subwoofer matches the level from your main system speakers Now slowly adjust the frequency co...

Page 8: ...rs for connection to pre amp output Dolby output or other dedicated sub outputs In the Out L F E Position the filter is opened wide to allow the optimum performance from processor 1 2 3 4 5 6 230V 50...

Page 9: ...a Neutrik Speakon connector Low level 10K unbalanced via gold plated RCA connectors 110 120v 220 240v where applicable Phase control 0 and 180 Deg High and low level mixing capability Automatic Speake...

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