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. However, it's a multi-step process as explained below.

In order to ensure the ultimate in tone, it's important to start at the left of the front panel and work your way to the right. Don't skip steps; don't jump around. Yes, this may take a minute or two, but the work is well worth it. Once they've done it a few times, most users can do it time and again in about a minute. So, go ahead an plug in your bass, turn on your amp (and plug it in first, ok?) and let's get started.

1. Begin with the Input Gain, Enhance and the Master Volume completely off - fully counterclockwise. All EQ should be set flat, that is, at 12:00 - straight up.

2. While playing your lowest note (or loudest), slowly turn the Input Gain up until the compressor or set level light begins to blink with regularity.

If you have disengaged the compressor, the set level light will barely blink on your loudest notes when you hit the "sweet spot". We recommend you don't increase gain beyond this point unless you engage the compressor. By the way, this is David's favorite way to set level, even if you intend to use compression.

If you are using compression, the compressor light will blink when it engages. Even if you want more compression, for now, leave your Input Gain set here. We'll talk about adding more compression in a minute.

3. 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 you dial in, the greater the boost (and cut). As with all of our EQ controls, a little goes a long way.

Most users find that using a small amount of enhance will get them very close to their perfect sound. In fact, a number of our recording artists tell us that their standard recording set-up is to have the Enhance set at approximately 9 or 10 O'clock and the tone controls set flat. They then send a post-EQ DI to the board.

Begin by bringing up the Master Volume to a comfortable listening level. Slowly bring the Enhance control up while playing. If you turn it up to 11:00 and still don't have your sound, stop there. Return the Enhance to OFF or leave it at no more than 11:00 and work with the EQ section.

IMPORTANT NOTE: The Enhance control on the WT330 and WT405 is slightly different than on other models. For these amps, turning the Enhance all the way up is the same as setting the Enhance on the rest of our amps to approximately 12:00.

4. Now it's time to set the EQ, beginning with the Bass and Treble controls. These controls cover a fairly broad frequency spectrum and many players use them to achieve their basic sound. This leaves the semi-parametric controls available to "dial in" a particular room.

Begin by adjusting these controls up or down as needed. We suggest playing a few notes in various areas of the neck so you can hear what your adjustments have done across the fretboard. If there is particular frequency you want to adjust, and the Bass or Treble controls cover too broad an area of the frequency spectrum, return them to flat and use the semi-parametric controls.

There are three sets of semi-parametric EQ controls, each with two knobs placed one above the other. The top knob controls the frequency while the bottom knob controls the amount of cut or boost. These three control sets affect the following frequencies:

30-300Hz • 200Hz-2kHz • 1.2k-12kHz

Notice that the spectrums affected by each control set overlap and blend. This is useful when dialing in difficult rooms where two frequencies that are close to each other require different EQ settings. Remember, Eden EQ controls are active, allowing 15db of cut (left of center) or boost (right of center).

To find the frequencies requiring adjustment, we recommend the following procedure:

Turn the level control of the first control set - the one marked 30-300Hz - to 3-6db boost (about 3:00). Now, while playing, rotate the corresponding frequency control back and forth. Pay attention to the sound as it varies, listening to which frequencies correspond to which notes and overtones. Once you've identified the frequency you want to adjust, boost or cut to taste. Perform this same procedure with the remaining two controls, if needed. Remember, a little goes a long way.

IMPORTANT NOTE: 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. If EQ clipping occurs, you can either decrease the boost or decrease the Input Gain. Remember, too, that our EQ controls are active, and are meant to turn both ways - not just UP! This means that you can enhance a certain frequency spectrum either by boosting that frequency or by cutting the adjacent frequencies. This latter method has the advantage of maximizing potential headroom.

Now that you've set your Input Gain and EQ, turn the Master Volume up to the appropriate playing level. At this point, you may also add more compression to your sound by increasing Input Gain. This will automatically increase the amount of compression.

If possible, step well forward of your rig to get a better idea of how you will sound in the room. You may be surprised at how different you sound once you step away from the speakers. Make adjustments to your EQ and Master Volume as necessary.

There you have it: a quick and easy process to help you get the perfect tone from your Eden amplifier. As previously mentioned, it make take a few extra minutes the first few times you go through this, especially if you take the time to experiment with the semi-parametric controls. However, we are confident that the time spent is an important investment, one that will pay off immeasurably in Great Bass Tone.

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