INTRODUCTION:
Thank you for selecting and purchasing the M-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. Multiple M-20’s deliver 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.
GETTING STARTED:
The M-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 of fully integrated designs.
WARNING: The M-20 monitor speaker must only be used with the M-20 Control Amp, cables, and vice versa.
The following are included in the Control Amplifier carton:
1- Control Amplifier
1- 6' IEC Power Cord
1- Warranty Registration Card
Screws
M-20
Amplifier 
Front Panel
1 - 20' Monitor Output Cable
4- 10-32 Rack Mounting Screws
8- Plastic Insulating Washers
Insulating
Washers
Rack Rail
Fig. 1: Rack Mounting Detail
INITIAL INSTALLATION:
The M-20 Control Amplifier may be used on a shelf, or mounted in a standard 19” equipment rack using the screws and washers supplied. One vertical rack space is required, but we recommend you leave at least one additional open space above and below the M-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 all M-20 monitors equidistant from the listening position. For more detailed speaker placement information see page 7.
