This delay was designed for ease of use and the best sound possible, with standard features everyone can use, but optional external features for things everyone may not want to pay for up front. The external options like tap tempo, modulation, and presets is an additional pedal with a computer in it to control this delay.
1. True bypass switching, the right side foot switch is effect ON/OFF.
2. It's ONE delay pedal, but has TWO sets of controls, not only delay time but also delay level and feedback.
YELLOW channel (upper 3 knobs) or RED channel (lower 3 knobs) are selected with the left foot switch.
3. Battery or normal 9V boss type power. Power jack in the center top.
4. Battery compartment on the bottom for quick and easy battery changes
5. Low power consumption, 15mA, so an alkaline battery should last about 30 hours of use.
6. Jacks are on the top of the pedal for efficient layout on pedalboards
7. Input jack on the right, unplug to disconnect battery
8. Output jack on the left
9. EFFECTS LOOP is next to the input jack. Use a Y-cable (insert cable like optional HOSA STP-201) to run an effect only when the delay is ON, and only on the delayed sound.
The dry sound will stay in the pedal, it won't pass through the effects loop.
Modulation pedals are cool here. The E-H FREEZE pedal is amazing in the loop!
Or use a VOLUME pedal with a Y-Cable
or an expression pedal to control the level of the delays. Pulling back all the way will kill the delay sound. You can also control the FEEDBACK this way, as lowering the volume will reduce the feedback so you can easily control infinite delays.
10. DELAY TIME EXPRESSION jack is next to the output jack. Use a normal
Boss EV5 type expression pedal to control the delay time of the RED
channel. This jack will also be used for external options we will introduce
including tap tempo, modulation, multiple delay time preset boxes, etc.
The Boss FV500L is a stronger, bigger expression pedal which we also carry. We also carry the Ernie Ball 6181 volume pedal which makes a GREAT small, heavy duty expression pedal (requires insert Y-cable).
11. 600mS (.6 seconds) analog delay time, with clear, not dull, delay sounds. But not clean and bright like a digital delay. Most of the units actually get 650mS if you measure them. The delays
are easily controlled for infinite feedback without runaway volume problems
which can damage your speakers. Minimum delay time is 36mS.
12. You can plug into the EFFECTS LOOP to get a WET ONLY sound, when the pedal is ON. The dry sound will come out of the normal output. You will need a special cable to get the wet output, with the ring on the pedal side connected to the tip of the output cable. Ground the tip on the pedal side (kills noise) if you don't want feedback (multiple repeats). Attach the tip to the ring on the pedal side to allow feedback. You can also plug a normal cable half-way into the EFFECTS LOOP jack to do this but it's a little tricky to get it just right so if you want to do it often it's best to make up a cable (or we can make one for you).
13. Two LED lights blink in time to the delay setting.
NEW REV 3 ARDX20 in Dec, 2011
We redesigned the boards and internal layout of the pedal to make them easier to build and more rugged. We tried to reduce the normal analog delay noise level too by arranging the wires and components, and using a board with more shielding. The wiring, boards, jacks, and LEDs are sturdier inside. We made one change to the circuit, putting a trimpot on the board for adjusting the maximum wet (delay) level. The stock setting is a bit louder than the previous version, and it can get a bit louder yet. But if you adjust it louder, the feedback gets more sensitive and you can have runaway repeats easily. These have a serial number over 1000 and a nicer plexi control panel with A and B labels.
No surface mount components
Unlike most of the new sunface-size analog delays now available, and some larger units with long delay times, the ARDX20 uses vintage style normal size electronic components that are hand-soldered to the circuit board. We also use normal size potentiometers and switches that are hand wired. This means that the ARDX20 won't wind up in a landfill if something goes wrong- it can be repaired by anyone, while the little robot-built surface-mount analog delays must usually be replaced if something fails or is damaged by an electrical or mechanical accident. We also feel that the normal size components will usually give you a better sound. The resistors may not make any difference, but some of the capacitors we use are not available in tiny surface-mount versions.
Someone asked me for a comparison to the MXR Carbon Copy. Those are about the best small analog delays, and we sell a lot of them. The ARDX20 has quite a bit longer delay time, about 2:00 on ours gives you the 600mS that the MXR has. The MXR has more white noise in the background, as it's tuned for more high end. The repeats on the MXR are a little harder and harsher due to the extra high end, our repeats are a little softer and smoother, a bit more like the old Japanese analog delays. But the ARDX20 has more high end than the old Japanese analog delays.