Rack Rail
C-20
Amplifier
Front Panel
Screws
Insulating
Washers
Fig. 1: Rack Mounting Detail
INTRODUCTION:
GETTING STARTED:
Thank you for selecting and purchasing the C-20. Your studio monitors are a critical element in the countless decisions
made during recording, mixing, and mastering and must deliver a transparent, neutral sound so you have the information you
need to choose and place microphones, set eq’s, balance mixes; ie, to deliver exceptional product. Together with the
NHTPro A-20 system, the sonically-matched, C-20 Center Channel monitor system delivers state-of-the-art multi-channel
monitoring capability.
If you require assistance at any time during or after the setup process, call our Customer Service Hot Line at 1-800-NHT-
9993 (648-9993). You can also visit our web site at www.nhtpro.com for more in-depth technical information.
The C-20 is unique in that it combines a dedicated control amplifier with a separate loudspeaker cabinet, using controlled
impedance cables that actually form part of the crossover network. By designing the system as an integral package of control
amp, cables, and monitor, many of the advantages of self-powered speakers can be realized without the possible attendant
performance compromises.
The following are included in the Control Amplifier carton:
1 - Control Amplifier
1 - 20' Monitor Output Cables
1 - 6' IEC Power Cord
4 - 10-32 Rack Mounting Screws
1 - Warranty Registration Card
8 - Plastic Insulating Washers
WARNING: The C-20 monitor speaker must only be used with the C-20 or A-20 Control Amp, cables, and
vice versa.
INITIAL INSTALLATION:
The C-20 Control Amplifier may be used on a shelf, or mounted in a standard 19” equipment rack using the screws and
washers supplied. For rack mounting, remove and retain the four feet from the bottom of the amp chassis using a #2
Philips screwdriver. One vertical rack space is required, but we recommend you leave at least one additional open space
above
below the C-20 Control Amplifier for improved cooling, as you would with any high power amplifier. For
table or shelf use, the four feet must remain attached to allow for air circulation. As a starting point for speaker
placement, position the C-20 monitor equidistant between the left and right monitors. Also, place the C-20 monitor so
that the front baffles of all three speakers are the same distance from your listening position. For more detailed speaker
placement information see page 7.
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