Eden NEMESIS NC-200A Manuel utilisateur

NEMESIS NC-200A

OPERATION MANUAL

Publishing Date 6/10/96 Rev.4

Congratulations on your purchase of your new NEMESIS Combo

Amplifier system. This manual will cover all (4) versions of the NEMESIS

Combos. These include the NC-210,NC-410,NC-112,and NC-115.

All of these models currently use the NC-200 Power Amplifier System.

All of us at the NEMESIS factory are totally committed to providing you

with the very best Bass Guitar systems in their class. We hand build

them all right here in the USA.

Our goal is to offer to you, both the outstanding performance quality of a

top notch professional Bass Amplification system and a reasonable price

point. Our goal is to make the Nemesis line such a great value that you

really can't afford not to own one. The NEMESIS operation is solely

owned by EDEN ELECTRONICS, one of the very best Manufacturers of

Fine Bass Amplification equipment in the world .

The NEMESIS products group encompasses an entire array of new

technologies, fabrication techniques, and materials. It is in fact a

revolution in Bass Equipment and manufacturing technology. We have

taken FET power device technology, computer optimized circuit design

and years of research and testing to evolve our new electronics package

( the NC-200). This is a great step forward in performance, reliability,

and value. We have spent years researching new materials and

manufacturing techniques that are both optimum for acoustic enclosures

and friendly to the environment.

We have developed a new and truly revolutionary method of making

loud speaker enclosures. Our new production process allows us to use

recycled wood and paper products in a unique way that is very

environmentally friendly. The process also gives us a more integral

Bass enclosure that is much stronger than traditional plywood boxes.

The new enclosure is equal or better sounding than the traditional

enclosures, has better structural quality and weighs less than older

designs. Additionally it helps the environment and reduces our total cost

of manufacturing and ultimately your cost of purchase.

The NEMESIS Combo line is the result of our attempt to combine High

performance and compact size together with light weight construction

and a great value for the working Bass player. A skilled craftsman needs

good quality tools that won't let him down on the job, and so does a

good musician.

GENERAL FEATURES

Your Nemesis Combo has all the following features; a 200 Watt FET

power amplifier, Passive thermal cooling, Automatic Thermal protection

circuit ,a Compressor Limiter with In/Out switch, Enhance Control,

Parameteric Tone control with In/Out switch, 3 Band Tone control,

Speaker On/Off switch, Headphones, Aux speaker output, full D.I. with

ground lift switch and Level control, Effect Loop, powerful 2" Voice Coil

Loud speakers, and a separate tuner output jack. Your unit may be

equipped with small plastic plugs that can be inserted into the unused

jacks in the unit. These are used to reduce the noise of air rushing out of

these jacks under high volume playing conditions. They are easy to

remove as well as insert.

SET UP AND GETTING STARTED

To turn on your Nemesis Combo you will need to do a few things the

first time . If your unit was shipped directly to you from a dealer check

carefully for hidden freight damage before you attempt to operate the

unit. If you find any damage, notify your dealer and the freight line

immediately. If you picked up your unit from your dealer it was probably

set up and tested out already. Just in case we suggest that you go

through the set up now.

INITIAL SET UP

Before you plug in your unit for the first time please do the following

things. First turn the power switch to the off position. Then set the

Master Volume control to (0). Set the tone controls to the center position

or (0). Turn the Enhance control to the Minimum position. Set the

parametric controls to the center (0). Set the Gain control to

approximately the 9:00 position to start with. Set the compressor in the

(On) position and set the Parametric switch in the (Off) position. On the

back of the unit set the Internal Speaker switch in the (ON) position. This

will set your amplifier up flat and with the auto compressor operating.

Now plug in the power cord to the inlet on the back of the unit. Use only

a safe grounded receptacle for proper operation at 120 V. A.C. 60Hz.

Now you can plug in your Bass and turn on the unit. Turn the master up

until you reach a comfortable sound level and we will go through the

tone controls and other features.

OPERATION and DESCRIPTION of CONTROLS

INPUT JACK

The input Jack will accept most Bass Guitar output levels. If you have a

dual battery Bass with output in excess of +10dBm you probably will

have to turn the output of your Bass down to avoid clipping the input.

The jack should except most passive and active Basses.

GAIN CONTROL/ and-12db pull to pad

This control regulates the first amplification stage and controls the

overall system gain. The compressor automatically tracks the input level

and follows the gain. You control the compressor threshold by setting

the gain lower or higher, depending on how much compression effect

you want. The compressor is provided with a bypass to defeat the

compressor operation. Some of the new dual battery Bass Guitars have

unusually high output levels. If you own one of these Basses it mat be

necessary to engage the -12dB Pad in order to properly match correct

signal levels with this unit. The pad is engaged by pulling up on the Gain

control knob.

ACTIVE LIGHT and COMPRESSOR ON/OFF SWITCH

This light indicates the best spot to operate the amplifier at. When the

compressor is engaged the light indicates compressor operation. When

the compressor is bypassed it indicates the sweet spot for operating the

amplifier. The compressor on/off switch engages and disengages the

Compressor.

ENHANCE CONTROL

This is a great sounding feature seldom fund on amplifiers at this price

level. The Enhance control is a complex tone Pre-shape that is set up to

optimize your bass sound. It is designed to boost the low frequencies

and upper midrange while at the same time reducing the midrange

frequencies. The Enhance control is a quick and easy way to a quality

bass tone . To try it out, set all the other tone controls to flat. Then

rotate the Enhance control to around 9:00 to 12:00 for the full effect.

This range is typically the best area for operation. The Enhance can also

be used with the other tone controls.

QUASI-PARAMETRIC TONE CONTROL

The single stage Quasi -Parametric control lets you dial into a specific

frequency range and boost or cut just that small part of the audio band.

The level control in the filter allows you to select the amount of boost or

the amount of cut you want . The Frequency control is tunable from

40Hz to 10 KHz. You can create many complex tone changes with this

control. The on/off switch allows you to compare your tone before and

after the changes you have selected. You can also bypass the

Parametric control section if you do not wish to use it.

MAIN TONE CONTROL 3 BAND

The main tone control section is a 3 band tone equalizer. The audio

spectrum is divided into three bands, the Bass, Mid, and Treble. The

Bass and Treble are shelving type filters and the Mid is a bandpass

filter. These controls give you broad general control of the shaping of

your tone. This is different than the more narrow control offered by the

Semi-Parametric.

MASTER LEVEL CONTROL

This control sets the final output level to the amplifier. For general

operation the control will normally be set at between 9:00 and 1:00.

HEADPHONE OUTPUT/ Aux. line out

This jack provides the output for headphones for practicing. If you switch

off the internal speaker you can use your amplifier to rehearse with just

the headphones. It can also be used as a Aux. line level output.

D.C. INDICATOR

This indicates that the D.C. power supplies are operating properly and

the amplifier is turned on.

BACK PANEL FEATURES

A.C. POWER INLET/ FUSE

This is where you plug in you A.C. line cord . This is also where the fuse

is located. For your unit you need a 3 Amp. 5x20 MM slow blow type. In

Europe use a 1.5 Amp or 1.6 Amp fuse slow blow and the appropriate

AC connector for the country you are in. Make certain that your unit is

set for the correct voltage of the country you are in.

INTERNAL THERMAL PROTECTION SYSTEM

Your unit is fully protected by an automatic thermal safety system that

meets the UL-813 standard for safety . If your unit it played to hard and

to long and it accumulates to much heat load. If this happens your unit

may temporarily go into the thermal standby mode. This is a normal

operation of the safety system. In the stand by mode the unit will remain

operating all the pilot lights will stay on, but the audio output to the

speaker will be shut down until the unit reaches a safe operating

temperature. The D.I. will continue to operate during the thermal

standby. Your unit will come back on automatically in 1 to 5 minuets and

operate normally.

HEAT SINK (chassis)

Your Nemesis unit is designed so that the outside panel (chassis) is also

the heat sink for the entire unit.

PLEASE EXPECT THIS UNIT TO RUN HOT TO THE TOUCH.

This means that the panel will always be from warm to quite HOT to the

human touch after playing for a while. This is normal and is totally within

the design parameters for the type of output devices that are used in this

unit. The thermal safety system will shut down the Audio Amplifier output

if the internal temperature rises above 190 degrees F.

HEAVY DUTY PROFESSIONAL USE

The Nemesis Combos are primarily designed for small clubs and

medium venues. The Nemesis Combos run well above normal combo

loudness levels. However,it is not designed to replace or to perform as

loudly as the more powerful Eden separate systems. If you find that you

are pushing your amplifier so hard that you are encountering thermal

standby and shut down on more than a very occasional basis. You are

pushing the unit well above the intended operating parameters.

Your Nemesis (A) version is fitted with an additional external heat sink to

improve cooling at very high power levels and extreme playing

situations. With this extra cooling configuration and the automatic

internal audio limiters you can play your Nemesis combo at

unreasonable levels almost indefinitely.

EXTERNAL SPEAKER OUTPUT

This jack allows you to use an external extention cabinet. The jack is

configured as a series connection point. You can use any impedance

speaker in this jack without causing any problems for the amplifier. Best

recommendations would be for a 2 Ohm or 4 Ohm extention speaker.

Leave the internal speaker switch in the on possition when using the

extention cabinets.

INTERNAL SPEAKER ON / OFF

This switch turns off the internal loudspeaker and any extention

cabinets. Make certain that this switch is in the on position if you want to

play your unit and hear it on the internal loudspeaker.

EFFECTS LOOP

This is a line level output and return. This is the place to put your line

level effects. You can also use the Effect Send as an Aux. line level

output. The circuit breaks on the return jack.

DIRECT OUTPUT

The D.I. output is used to connect your unit to P.A. Systems and

recording consoles. The level control sets the amount of signal level that

appears at the output of the Mic. connector. The ground lift is used to

reduce noise when plugging in to another system. Switch the ground lift

back and forth to determine the lowest noise/hum position. The output

is adjustable from Mice. level to line level. This is a fully balanced output.

TUNER OUTPUT

This is the place to plug in your tuner. You can also use this jack as an

additional Aux. output. This is a line level send.

SETTING UP YOUR OWN SOUND

Start by setting the pre-amplifier tone controls to the flat position. Set the

Enhance control to Min. Set the Master volume control to (0). Plug in

your Bass and turn on your unit. Set the Gain control to around 10:00

and move the master up to around 11:00 or to a comfortable listening

level.

Try the Enhance control first. Rotate it while playing. You may find that

this gives you the sound you are looking for, using just this control.

Next try the main 3 band control . Start with the Treble control and work

down to the Midrange control then adjust the Bass control. Be careful

about using large boosts particularly in the Bass range. This can cause

increased distortion at loud playing levels and can limit overall output

level if carried to extremes.

The Parametric section is great for shaping a sharply defined tone

changes. Set the Parametric Level @ +12 and sweep the Frequency

control slowly as you play. This will give you a feel for the power of this

tone control section.

To some things up. You will always have the best results creating a

great bass tone around the natural tone of your instrument.

FOR YOUR SAFETY

Always use a correctly grounded receptacle for your Amplifier A.C.

receptacle. If your fuse ever need replacement use only the same size

and type that came with your unit from the factory. Your Nemesis comes

with a two year warranty described in the warranty section of the

manual.

If you have any questions or problems with your unit please contact us

your local dealer, by calling 612-675-3650 and ask for the Nemesis

Service Dept. The Nemesis Service Dept. is open Monday through

Friday between 8:30 AM and 4:00 PM.

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