THE LEADER IN BASS AMPLIFICATION. CXC Combo Bass Guitar Amplifier Covering Models CXC110, CXC210, CXC112 CXC212, CXC1015, CXC410 and DC112XLT Including (S) Versions Never Compromise™ ©09-20-2005 by U.S. Music Corp.
Bass Guitar Combo Amplifier CXC110, CXC210, CXC112, CXC212, CXC1015, CXC410 and DC112XLT, including (S) Versions OPERATION MANUAL Publishing Date 09-20-2005 INTRODUCTION Congratulations on the purchase of your new Eden CXC Combo Amplifier System. All of us at Eden are totally committed to providing you with the very best bass guitar systems in their class.
We have used only AA void-free plywood in the construction of your enclosure. Other manufacturers may use C or D grade, which allows for voids and patches that can degrade over time, causing rattles, or fall apart completely. Your cabinet has been constructed using the finest craftsmanship. We use a special glue and use Dado and Rabbet interlocking joins to ensure you a lifetime of use.
AMPLIFIER FRONT PANEL FEATURES Input Jacks – 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. Both inputs are fully buffered and will handle standard passive, high level active, and piezo input signals. Both jacks can be used simultaneously. Mute switch – Mutes all the outputs except the Tuner Out, allowing for silent tuning.
Compressor Bypass – Turning the Compressor control OFF will disengage the compressor. Enhance Control – Called the “Magic Knob” by some, this complex control simultaneously boosts the very low bass, upper middle, and high frequencies while putting a dip in the lower middle frequencies. It is flat when set to its minimum level (fully counterclockwise). Tone Control Section These three controls and two switches allow you to boost or cut the tone at the desired frequency.
We recommend you engage these switches at low volumes so that your sound remains consistent at any volume. At higher volume levels they aren’t needed but you may want to use them as a matter of taste. Because we strongly support Freedom of Choice, we’ve incorporated these two switches into our design. (You’re welcome.) Master Level Control – Adjusts overall system output and stage loudness. Headphone Jack – Accepts a standard ¼ inch stereo or mono headphone plug.
Amp Outs – These consist of two ¼ inch jacks and an 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. Amplifier Power Rating: WT330 WT390 200 watts RMS @ 8 Ohms 330 watts RMS @ 4 Ohms 420 watts RMS @ 2 Ohms 235 watts RMS @ 8 Ohms 390 watts RMS @ 4 Ohms 625 watts RMS @ 2 Ohms Both models have +3dB of headroom. This means that the maximum output is twice the RMS rating.
Stereo Aux. Input - These standard ¼ inch input jacks are designed to accept the signal from an external source such as a CD or cassette player, drum machine, synth. module, etc. The signal is summed (added in) prior to the tone controls and Master Volume control. These jacks can also be used to return a studio cue signal, allowing the CXC combo to provide you with your own headphone mix in the studio. Amplifier Break Link – These are provided to break the signal chain at the input to the amplifier.
ABOUT THE SPEAKERS As previously mentioned, Eden is the only bass amplifier manufacturer to design, engineer and build its own drivers. Designing and building our own speakers and high-frequency drivers allows us an opportunity to create far greater synergy between our drivers and cabinets than any other manufacturer can achieve. We can create several speaker and/or cabinet prototypes and then test them together to find the best possible combination.
Extension speaker connections should be made with high quality 16 gauge or heavier unshielded speaker cables. We recommend 10 or 12 gauge cables. The use of shielded line or instrument cables for speaker connections can damage your amplifier. The speaker cable should be as short as possible. INITIAL SET UP As bassists, each of us has in our head a concept of our perfect sound. Eden amplifiers are designed to help you easily achieve the sound you hear inside you.
Setting Your Level – Remember, begin with the Input Gain, Enhance, Compressor and Master Volume completely OFF – fully counter-clockwise. All EQ should be set flat, that is, at 12:00 – straight up. While playing your lowest note (or loudest), slowly turn the Input Gain up until the Clip light begins to blink with regularity. If you go past 2 or 3 o’clock, engage the Gain Switch to better match the gain of your instrument to the amplifier.
Enhance – Once you’ve set your gain, you can move on to setting your EQ, beginning with the Enhance control, or Magic Knob, as some call it. The Enhance circuitry adds very low bass, upper mids and highs while scooping out a bit of low middle. The more Enhance effect you dial in, the greater the boost (and cut). As with all of our EQ controls, a little goes a long way. Slowly bring the Enhance control up while playing.
Setting the Midrange – Adjusting the Midrange control will bring you either more up-front in the mix or more in the background. As mentioned earlier, you can choose between center frequencies for the Midrange control – either 550Hz or 2.2KHz. The low position (550Hz) is good for general playing and recording. It’s also good for dialing in a good Fretless Bass tone. The high position (2.2KHz) is good for getting a more aggressive Rock tone. We suggest you start in the low position.
Engage the Dynamic Boost – As mentioned earlier, this effect is based on the Fletcher-Munson curve and ensures that the bass is full and the highs are crisp, even at the lowest volume settings. As volume increases, the effect is reduced, resulting in very consistent tone regardless of volume level. We suggest you spend some time experimenting with this Really Neat Feature. We believe that you’ll think it’s Really Neat, too. Final Settings – If you haven’t adjusted the Midrange yet, now is the time to do it.
NOTE; Remember, you can’t equalize out major physical room anomalies. If things sound really weird where you are, try moving you rig a few feet and see if that helps. This may be particularly helpful on saggy stages that bounce like a drum head. (The propellerhead term for this is “diaphragmatic.” So says David. – LB) YOU’RE DONE. GO PLAY. There you have it: a quick and easy process to help you get the perfect tone from your Eden amplifier.
If you are using NL4 plugs to connect there should also be not problem with phase relationships. If you wish to connect multiple cabinets in SERIES, you will need to use special single wire cables with individual banana plugs, attaching them to the cabinets as shown below. (You can purchase ¼-banana adapters for this purpose, if necessary.) Parallel Connection Amp Series Connection +- Amp +- Spkr. 1 Spkr. 1 + - + - Spkr. 2-+ - Spkr.
Series speaker configurations Total system impedance Two 8 ohm cabinets One 8 ohm cabinet and one 4 ohm cabinet Two 4 ohm cabinets Three 8 ohm cabinets Two 8 ohm cabinets and one 4 ohm cabinet One 8 ohm cabinet and two 4 ohm cabinets 16 ohms 12 ohms 8 ohms 24 ohms 20 ohms 16 ohms As you can see, problems tend to arise when using more than two cabinets. In these cases, a combination of parallel and series wiring may be helpful.
CABINET PLACEMENT The placement of your cabinet can also have an impact on the amount of bass it produces. Placing the unit on the floor increases the amount of Bass you get by an additional +3dB . With each additional wall surface placement you get another 3 dB increase. This is due to the reinforcement of bass frequencies by the adjacent surfaces. The absence of reinforcing surfaces is the reason why outside settings are so problematic for bass amplification.
Using the CXC Without Speakers -This amplifier is designed to be used safely with headphones only, without the loud speaker plugged in. No harm will result from using the amplifier in this fashion. This allows the use of the unit for practice with headphones and as a preamplifier with other amplifiers. Like we said earlier, neighbors and room mates really love this, which qualifies it as another Really Neat Thing. MAINTENANCE Your Eden amplifier has been designed to require minimal routine maintenance.
To remove the odor of airborne contaminants (smoke, e.g.) or the beer your drummer spilled on your cabinet during the last gig, use a commercially available fabric freshening spray. CLIMATE AND TRANSPORTATION Routine temperature extremes (such as cold garages) will not harm your CXC combo. You should, however, allow the system to adjust to room temperature before playing it at loud volumes.
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.
