Korg Ampworks Bass

Frequently Asked Questions

• What model AC adapter can I use the Korg Ampworks Bass?
• Where can I buy the KA193 AC Adapter?
• How do I turn off the effects if I don't want any?
• What does the REMS logo on the front of the unit mean?
• Why was the Korg Ampworks Bass discontinued?
• What should I expect to pay for a used Ampworks Bass?
• How can I store more than two programs?
• How do I use the "tap" button?
• What are the frequency ranges for the various Amps?

What model AC adapter can I use the Korg Ampworks Bass?

Korg model KA193 AC Adapter
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Where can I buy the KA193 AC Adapter?

eMusicGear sells it for $14.95 with free FedEx ground shipping. You can also have it ordered at your local Korg dealer.
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How do I turn off the effects if I don't want any?

Turn the Eff. Depth setting to 0.
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What does the REMS logo on the front of the unit mean?

REMS stands for Resonant structure and Electronic circuit Modeling System. This is Korg's proprietary sound modeling technology for reproducing the character and nature of instruments and electronic circuits. According to the Ampworks user guide:

"REMS emulates a wide variety of sound generation characteristics including instrument bodies, speakers & cabinets, acoustic fields, microphones, vacuum tubes, transistors, etc."

Why was the Korg Ampworks Bass discontinued?

While no official statement was made by Korg, most believe it was discontinued due to the lack of storage for programs and it's "desktop" design which made it impractical for gigs. Now Korg exclusively sells the AX10B, which is basically an Ampworks Bass with more storage for user programs and a bigger floor design for live playing.
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What should I expect to pay for a used Ampworks Bass?

Expect to pay between $50 and $70.
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How can I store more than two programs?

You can't, at least not electronically. However, Korg does provide a helpful sheet for logging your favorite settings by hand.
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How do I use the "tap" button?

The tap button has three functions:

1. It allows you to adjust the modulation speed, delay time, or reverb time of certain effects by tapping it twice. For example, to set the delay effect, you hit the tap button two times to specify the beginning and end of the delay time. Think of it like a stopwatch. You start it at 0:00 and end at 0:02 to specify a 2-second delay.
2. It allows you to adjust the depth of noise reduction by holding it down while turning the Eff. Depth knob.
3. It allows you to adjust center frequencies for the mid range control. Hold it down while turning the middle knob. (Note: this only works if the selected Amp type is VALVE - JAZZ.)

What are the frequency ranges for the various Amps?

I emailed Korg Support this question and this is the answer I received:

                Low EQ           High EQ          Mid EQ
LA STUD         80Hz +-15dB      2kHz +-15dB      Parametric
JAZZ            40Hz +-20dB      3kHz +-10dB      1kHz +-5dB
GOLD PANEL      30Hz +-15dB      2kHz +-15dB      Parametric
SCOOPED         60Hz +-13dB      4kHz +-15dB      250Hz +-10dB
                                                  1kHz +-10dB
STUDIO          40Hz +-25dB      4kHz +-30dB      n/a
VALVE           40Hz +-12dB      4kHz -20~+10dB   220Hz -20~+10dB
                                                  450Hz
                                                  800Hz
                                                  1.6kHz
                                                  3kHz
VALVE2          40Hz +-12dB      4kHz -20~+10dB   220Hz -20~+10dB
                                                  450Hz
                                                  800Hz
                                                  1.6kHz
                                                  3kHz
CLASSIC         30Hz +-15dB      3kHz +-10dB      200Hz
                                                  400Hz
                                                  600Hz
                                                  800Hz

They only provided specs for 8 of the 11 amp types, and what they did provide is a little confusing. But it's better than nothing I suppose. The other three amp types (AC 100, SILVER, UKMAJOR) are proprietary and they wouldn't divulge the frequency ranges.
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