AdrenaLinn II Frequently Asked Questions




Q: What is the latest software version for AdrenaLinn II? Can I upgrade my unit?

A: It is version 2.1.2. To learn what version you have, hold the UP ARROW button while connecting power and look at the display. If you see "212", you have the latest version. If you see "P20", "2-0", you have an earlier version. Click here for a list of the improvements in version 2.1.2. If you wish to upgrade to 2.1.2, you can do so by purchasing a set of two plug-in chips that you can install yourself. Go to our online store and look for the item "AdrenaLinn II Version 2.1.2 Software Chipset".

Q: I've lost my manual. Can I download a copy?

A: Yes, from the AdrenaLinn II Support page.


Q: When I edit a drumbeat it doesn’t save to the preset.

A: The preset is assigned to a Factory preset, which can’t be edited by the user. When you try to edit a Factory drumbeat then try save it, AdrenaLinn automatically saves it the same-numbered drumbeat in the User bank. If you then reselect the preset, it automatically selects its assigned Factory drumbeat, even though you edited the same-numbered User drumbeat.

To get around this:

1) Copy the desired Factory preset to one of the User preset locations.

2) Select the User drumbeat you have edited.

3) Save the preset. This saves the preset’s assigned drumbeat.


Q: I'd like to power my AdrenaLinn from a pedalboard power supply. What are the specific power specifications?

A: For either AdrenaLinn 1 or 2, any power adaptor will work that has the following qualifications: 9 volts dc (regulated or unregulated), at least 500 milliamps, plug dimensions of 12mm long by 5.5mm outside diameter by 2.1mm inside diameter, center pin positive.

Note: Using an adaptor with the wrong specifications may damage your AdrenaLinn. You can order a new one from our online store.


Q: One or more of my knobs came off. How can I make them stay on, or can I get more?

A: The knobs do tend to lose their grip over time. We have new knobs that grip tighter and you can order a set of 4 from our online store. Alternatively, one customer had a novel solution: Cut out a 1/3" circle of aluminum foil and place it over the shaft, then push the knob onto the shaft; the foil will act as a shim that holds the knob on better.


Q: How to I initialize all settings in the AdrenaLinn to factory status?

A: While holding both foot switches, connect power. Continue to hold both until you see “ini” in the display, then release. Warning: this will erase all user data!


Q: What is the resolution of the internal digital processing?

A: A-D and D-A conversion is 24 bits at 40kHz sampling rate. Internal processing is 32 bits at 40 kHz. All internal processing is digital except for the input and output analog preamps.


Q: Why doesn’t the drumbeat start playing exactly when I hit the Start footswitch?

A: The Start footswitch actually starts the drumbeat when you release it. This is the only way the AdrenaLinn can know the difference between tapping and holding the switch (for decrementing the preset). To get around this, press the foot switch one 1/8 note before you intend to start, then release it on the downbeat. Be careful not to hold it too long, because holding it ½ second causes the preset to decrement.


Q: The drumbeat changes whenever I select a preset. How do I stop this?

A: Hold the MAIN button for ½ second so that the lower MAIN light goes on. Then turn the second knob (Preset Sets Drumbeat) to the left so that it shows “Off”.


Q: What guitar amp do you recommend I play my AdrenaLinn through when I play live?

A: If you’re only using AdrenaLinn’s effects and not the amp models, then I’d recommend you use the amp you like best because it’s really personal taste. Filters effects are similar to wah pedal effects, so if you like a certain amp with wah pedal, chances are you’ll like the same amp with AdrenaLinn’s filter effects.

However, if you’re using AdrenaLinn’s amp models, then the best amp is a full-range powered monitor because it faithfully reproduces the intended sound of the amp modeling product, just like recording direct. This is true for any amp modeler—POD, AmpliTube, etc. Running an amp modeler through an amp is akin to running a Fender amp through a Marshall; you might like how it sounds but it’s not very predictable. The trouble is that guitar amps always color the sound and never faithfully reproduce the guitar’s sound, which is a good thing and the reason you bought the amp. And every great-sounding guitar amp colors the sound in a different and uniquely good way. AdrenaLinn, POD and other modelers have an “amp” mode which attempts to compensate for this coloring, but it’s really impossible to compensate for the unique coloration of each guitar amp you might be running your modeler into.

The bottom line is this: If running your guitar through any amp modeler before your guitar amp sounds good to you, don’t change a thing. However, if you want to hear an amp modeler’s sound as it was intended to be heard, plug directly from the modeler’s output into your console for recording or into a flat-response powered monitor for live. For live play, I (Roger) run my AdrenaLinn II directly into a Mackie SRM450 powered PA monitor and it sounds great.


Q: How did John Mayer get the effect he used on his song "Bigger Than My Body"?

A: He actually used preset F35 and drumbeat F48 on an AdrenaLinn 1. Unfortunately, we removed that preset on AdrenaLinn II because no one seemed to like it. Then after we released AdrenaLinn II, John Mayer made his hit and everyone suddenly liked that preset. Whoops. At least we were smart enough to keep the same drumbeat he used, which is F15 on AdrenaLinn II.

You can recreate the preset he used by entering the following settings:

Set the 5 preset rows to these values:

Row 1: ARP     USR     75        STE

Row 2: 3-3       ---        17        86

Row 3: AM4     E-A      36        ON

Row 4: 13        57        58        43

Row 5: 34        16n      0          OFF

This preset uses a User Sequence. Set the 32 steps of the user sequence to:

Row 1: L0        L0        L7        L7

Row 2: L12      L12      L7        L7

Row 3: L14      L14      L7        L7

Row 4: L12      L12      L7        L7

Row5:  L0        L0        L7        L7

Row6:  L12      L12      L14      L14

Row7:  L12      L14      L19      L21

Row8:  L14      L12      L9        L7

(The envelope on/off settings for all 32 steps should be E0.)

After entering the preset, play the following 2-bar repeated phrase: On the first bar, play an Esus chord and sustain it for he entire bar. At the second bar, first play the same Esus chord, followed on the second 1/8 note by an E major chord.


Q: How can I get the sounds John Mayer used on his song "I Don't Trust Myself (with Loving You)"?

A: To get the pulsing filter sound used on the opening chord riff:

Set PRESET to F43

Change EFFECT to anything else, then re-set it to 'Ftr'

To get the sound used on the melody line that follows the opening chord riff:

Set Preset to F82.

Set Resonance to 10.

Set Amp to 'AM1' (1st amp in list).

Set Delay On/Off/Ster to Off.

To hear the same drumbeat:


Set TEMPO to 84


Q: How can I get the sound John Mayer used on his song "Heartbreak Warfare"?

A: John Mayer is pretty much our hero here at Roger Linn Design, having prominently used AdrenaLinn on "Bigger Than My Body", AdrenaLinn II on "I Don't Trust Myself With Loving You" and now AdrenaLinn III on "Heartbreak Warfare". Here are two YouTube videos (1 and 2) of him playing Heartbreak Warfare, with convenient guitar close-ups. As you can see, the part he's playing is very simple, letting AdrenaLinn III's 1/8 Note Sawtooth Filter Modulation and Dotted 1/8 Note Delay do the heavy lifting. Here's how to set up your AdrenaLinn II to get the same sound:

* Select AdrenaLinn II's preset F44.

* In the DLY row, Change Delay Vol to 60, Delay Repeats to 40 and Off/On/Ster to STE.

* Select AdrenaLinn III's drumbeat F 6.

* Set the tempo to 97.

* Turn your guitar's tone control down to minimum or nearly minimum.

Here's how he plays the guitar part on the intro and verses:

* On the 2nd 1/8 note of each bar, softly play the G string on the 14th fret.

* On the 3rd 1/8 note of each bar, softly play the B string on the 17th fret.

Let both strings ring out for the duration of the bar. This same part works over both the A and D chords played by the other musicians. For the F# minor section ("If you want more love, why don't you say so?"), the part is:

* 1st bar: Fm chord, played as 4th fret of D string + 2nd fret of G string + 2nd fret of B string.

* 2nd bar: Asus chord, played as open A string + 2nd fret of D string + 2nd fret of G string + open B string.

* 3rd & 4th bar: D Ma7 chord, played as open D string + 2nd fret of G string + 2nd fret of B string.

For all three of these chords, play the lowest string of the chord on the start of each bar, and the other notes of the chord on the 2nd 1/4 note of each bar. Let the notes sustain for the duration of each bar, then repeat these 4 bars once before going back to the verse section. There's a third part, but we'll leave it up to you figure that one out.

We can't lay claim to the Jeff-Beck-like tone he achieved for the solo, but preset 50 isn't too far off if you reduce your guitar volume for a clearer tone.


Sound output and processing


Q: Can I separate the drum sound from the guitar sound?

A: Yes. Press and hold the main button to access the secondary Main functions. Turn the fourth knob ("Balance/SEP") all the way to the right to select "SEP" This will route the drumbeat to the right output and the instrument (preset) to the left.


Q: I can't hear any guitar sound? What's wrong?

A: Check the following:

1) Press and hold the main button for 1/2 second to change the VOLUME knob to its BALANCE/SEP function, which is a balance control between preset (guitar) and the drum machine. Set it to "EqU" (equal) at the middle of its range.

2) Do you hear sound on other presets? If so, check the Amp Volume for that preset.

3) If you turn the little Preamp Gain knob up all the way and play, does the CLIP light go on? If not, check your guitar cable and guitar output.


Q: I can't hear any drums? What's wrong?

A: Check the following:

1) Press and hold the main button for 1/2 second to change the VOLUME knob to its BALANCE/SEP function, which is a balance control between preset (guitar) and the drum machine. Set it to "EqU" (equal) at the middle of its range.

2) Select any drumbeat other than F99 or U99, which are blank drumbeats.

3) If only one drumbeat is silent, check the Drumbeat Volume control.


Q: Can I globally turn off the drums?

A: Yes. There are 2 ways:

1) Press and hold the main button for 1/2 second to change the VOLUME knob to its BALANCE/SEP function, which is a balance control between preset (guitar) and the drum machine.Turn it all the way to the left so it says p50, meaning all preset (guitar) and no drums.

2) Select drumbeat F99, which is a blank drumbeat.


Q: Can I turn off either the effects, amp models or delay for all presets in one step?

A: Yes. Using the Bypass Mode setting, the Bypass foot switch can alternatively be set to globally bypass off any combination of effect, amp and delay for all presets. The relevant Bypass Mode options are:

“bYP”:   Normal bypass function

“-Ad”     Turn off effect

“E-d”     Turn off amp models

“EA-“     Turn off delay

“--d”      Turn off effect and amp

“-A-“      Turn off effect effect and delay

“E--“      Turn off amp and delay


Q: Is there a way to quickly turn the effect on or off during performance without affecting the amp or delay settings?

A: Yes. Set the Bypass Mode parameter to “-Ad.” Then, when you press BYPASS only the effect will be turned off.


Q: How do I turn off either effect, amp or delay in a particular preset?

A: To turn off the effect only, set the Off/On/Ster parameter in the Effect section to Off. To turn off amp modeling only, set the Off/On parameter in the Amp section to Off. To turn off the Delay only, set the Off/On/Ster parameter in the Delay section to Off. You must save the preset (user presets only) to retain the new setting.


Q: How do I send the drumbeat through the AdrenaLinn’s filter, amp and delay processing?

A: Press the up and down buttons repeatedly until the upper of the 2 Edit Drumbeat lights goes on. Then turn the second knob (To Delay/Filter). Settings of D00-D99 send the drums to the delay. Settings of F00-F99 send the drums to the AdrenaLinn’s input, to be processed in the same way as the instrument signal.


Q: The display says “AMP” whenever I turn it on. What does this mean?

A: The AdrenaLinn’s guitar amp tone compensation is on, which reduces the treble level of the amp models to compensate for the added treble boost of guitar amps. To return to normal treble level for recording, hold MAIN while connecting power, wait 10 seconds, then recycle power. The word “AMP” should no longer appear at power-on. Repeat this procedure to return to AMP mode.


Q: How do I get more than 2 outputs? I want to send both the drums in stereo and the instrument signal in stereo.

A: Buy another AdrenaLinn and synch them together via MIDI, using one for the instrument signal and the other for the drums. Or, record the drums in stereo in one recording pass and the instrument in stereo in the next, synched with MIDI clock.


Tempo and Timing


Q: The tempo changes whenever I select a drumbeat. How do I stop this?

A: Press the up and down buttons repeatedly until the upper of the 2 Edit Drumbeat lights goes on. Then turn the third knob (Use Drumbeat Tempo) to the left so that it shows “Off”


Q: How do I change the amount of 1/16 note swing on a drumbeat?

A: Press the up and down buttons repeatedly until the upper of the 2 Edit Drumbeat lights goes on. Then turn the fourth knob (Timebase) to select either “16n” (straight 1/16 notes), “16h” (halfway between straight and swing 1/16 notes) or “16S” (swing 1/16 notes).


Q: A particular sequence preset will sometimes play 1/8 notes and sometimes 1/16s, or sometimes swing and sometimes straight time. What gives?

A: The timebase of the preset’s sequences (tremolo, filter or arpeggio) is determined by the selected drumbeat’s Timebase setting. For example, if you select a drumbeat that has an 1/8 note Timebase, then the preset’s sequence will play 1/8 notes. The same rule applies to swing: if you select a drumbeat with 1/16 swing timebase, then the preset’s sequence will also play in 1/16 swing timing. To change the timing of the preset’s sequence, you must change the drumbeat’s Timebase setting.


MIDI and Sync


Q: When I hook up a midi pedal and change presets it jumps to the factory presets. How do I change it to select the user?

A: To select presets in the User preset bank from MIDI, send a MIDI Controller 0 message with a value of 1. To select presets in the Factory preset bank from MIDI, send a MIDI Controller 0 message with a value of 0. After sending either of these messages, any received Program Change messages will select presets in the selected bank (Factory or User), and the selected bank will be remembered after recycling power.


Q: I'm not sure if my AdrenaLinn II is responding to MIDI clock, but I don't have another source of MIDI clock to send it as a test. Is there another way?

A: Yes. Set the CLOCK IN setting (in the SYSTEM row) to "On" (MIDI clock receive enabled). Now connect a MIDI cable from the AdrenaLinn II's MIDI OUT to it's MIDI IN. Then press START. The drumbeat should start playing at a wildly fast tempo because the MIDI clock is feeding back into itself. You've now proven that the AdrenaLinn II is correctly responding to incoming MIDI clock

Roger Linn Design

Los Altos, CA