Nemesis Owners Manual NA320 Bass Guitar Amplifier THE LEADER IN BASS AMPLIFICATION. © 08/19/2005 by U. S. Music Corp.
Bass Guitar Amplifier NEMESIS NA-320 OPERATION MANUAL Publishing Date 08-19-2005 FOREWORD Congratulations on the purchase of your new Nemesis NA320 Integrated Amplifier System. All of us at Eden are totally committed to providing you with the very best bass guitar systems in their class.
The Nemesis line of amplifiers is the result of our research and development in combining high performance and compact size. Just as a skilled craftsman needs good quality tools that won't let him down on the job, so does a good musician. We hope you enjoy the tool we’ve created for you. Have fun; play low! Please read this manual in its entirety before operating your new amplifier. Failure to do so could result in misuse or damage.
CAUTION! Your ears are your most important piece of equipment. Unfortunately, they cannot be replaced as easily as your other gear. Please take the following warning seriously. This product, when used in combination with loudspeakers and/or additional amplification may be capable of producing sound levels that could cause permanent hearing loss. DO NOT operate at high volume levels or at a level that is uncomfortable.
FRONT PANEL FEATURES Input Jack – Designed to accept a standard ¼ inch mono phone plug. For best results use a high quality shielded cable to connect your instrument to the amplifier. The input is buffered and will handle standard passive, high level active, and piezo input signals. Gain Control – Regulates the first gain stage of the preamplifier and controls the amount of signal available to the system. Input Pad – Pull slightly on the Gain control to engage a –12dB pad.
Three Band Tone Controls – Divides the audio spectrum into three bands: Bass, Mid, and Treble. The Bass and Treble controls are shelving type filters. The Mid control is a band pass type filter. These controls give you a broad general control of the tone shaping. Master Volume – Controls the main stage sound level and the Head Phone outputs. Headphone Jack – Accepts a standard ¼ inch stereo or mono headphone plug. It can also be used as a Master Output send to slave another amplifier.
The cooling system also features a high temperature thermal safety system, which will activate a circuit if the operating temperature goes above 200 degrees F. This circuit will automatically turn off the output of the system in the event of overheating. It will automatically reset itself as soon as the unit cools down to a safe operating temperature. NOTE: the D.I. will continue to operate normally even when the amplifier is in thermal safety mode. Only the stage sound will be lost.
IMPORTANT NOTE: In order to operate properly in other parts of the world, your amplifier may require minor modifications. These modifications must be made by a QUALIFIED technician. Contact your local distributor for further information. Speaker Outputs – These consist of two ¼ inch jacks and two NL-4 connector (sometimes called a Speakon). The jacks are wired in parallel. The total speaker load impedance should not go below 2 ohms. On NL-4 connectors, we use +1, -1 connections. D.I.
Tuner Out Jack – This standard ¼ inch jack is designed to provide a pregain signal for connection to a tuner. It can also be used to provide pre-tone signal to other devices such as a direct box or console. The signal is enough to provide adequate signal to virtually every tuner on the market. OPERATING INSTRUCTIONS Mechanical and Thermal Issues – During operation, your amplifier should always be placed away from sources of moisture or heat.
IMPORTANT NOTE: Before you plug in your unit for the first time, please do the following things. First, turn the power switch to the OFF position. Check the back of your unit for the correct voltage notation for your county of operation. Once you’ve ensured correct voltage, set the Master Volume control to minimum (fully counter-clockwise). Set the tone controls to the center position (12:00 or 0). Turn the Enhance control to the minimum position.
Setting the Compressor - If you want to use compression, engage it now by turning the Compressor Defeat switch OFF. The compressor light will now blink when your gain goes above the compression threshold. This will generally show up more on the lower notes, or when you employ Slapping. (A properly compressed Slap sound is very cool, indeed.) If you want more compression, increase the Input Gain a little at a time, until you achieve the amount of compression you desire.
Using the EQ Controls – Before you begin to twiddle knobs, let’s talk about a few things. Excessive boosting of one or more EQ frequencies may cause an overload in the EQ section. If this happens, the EQ Clip light will engage. This is a Very Bad Thing and needs to be corrected immediately.
Here are a couple of tips to help you dial in your desired tone: For a great fretless tone, dial in a little extra at approximately 550Hz. For extra grind for Rock and other aggressive music, add a little at 1-1.2KHz or 2-2.2KHz – or both! Remember, though, that a little goes a long way. Don’t over boost. NOTE: Remember that the tone you get when playing alone may not cut through as well as you’d like when playing with others.
Frequency enhancement results from cabinet placement and room acoustics. A cabinet placed on the floor will have the lower frequencies boosted by about 3 dB. Placement against a wall adds another 3 dB. A corner adds 3 dB more. Consequently you may find a surprising boominess to your sound. Certain qualities in the room itself can also enhance the lower frequencies, further contributing to this problem. Frequently this effect is more noticeable in the audience than it is on stage.
Headphone Jack as a Line Driver – On some occasions (such as highvolume or outdoor situations) it may be desirable to use the NA320 along with an additional power amplifier and added cabinets. A standard shielded instrument cable may be used to connect from the headphone jack of the unit to an unbalanced input of a standard power amplifier. This will provide a signal that is post-EQ and after the Master Volume control, allowing the entire system to be controlled from the NA320.
The Magic Smoke – Few people realize just how much magic goes into creating Great Bass Tone. It isn’t something you normally need worry about. Just have fun and leave all that to us. However – and this is very important – if you ever release the Magic Smoke from your amplifier this is indeed a Very Bad Thing, perhaps the worst thing you can do.
If you have problems, please call the USM Customer Service Dept. at: 1-800-USSOUND (1-800-877-6863) When you hear the voice prompt, Press 1 on your phone’s keypad. Please ship Authorized Returns for service to: Eden Electronics P.O. Box 338 115 2nd Street Montrose, Minnesota 55363 Email eden@eden-electronics.com Website http://www.eden-electronics.com Eden Electronics C/O U.S. Music Corp. 444 E. Courtland Rd.
