Darkglass Electronics ALPHA OMEGA PHOTON Manual de usuario

ALPHA·OMEGA PHOTON: USER GUIDE

OWNER’S MANUAL

QUICK START GUIDE

CONNECTIONS

INPUT

AUX IN

HEADPHONE OUTPUT

BALANCED OUTPUTS

DIRECT OUTPUT

MIDI IN

USB

SIGNAL CHAIN

BLOCK DIAGRAM

COMPRESSOR

DISTORTION

CABINET SIMULATION

BLEND

CONTROLS

SMART POTENTIOMETERS

TOUCH SENSITIVE SLIDERS

ROTARY FOOTSWITCH ENCODERS

BASIC OPERATION

EDITING AND SAVING PRESETS

TUNER

BYPASS

PERFORMANCE LOCK

BLUETOOTH PAIRING

ALPHA·OMEGA PHOTON AS A USB AUDIO

INTERFACE

SETTING UP THE DRIVERS

USB AUDIO SIGNAL ROUTING

DARKGLASS IR LIBRARY

TECHNICAL SPECIFICATIONS

ALPHA·OMEGA PHOTON: USER GUIDE

QUICK START GUIDE

Connect your instrument into the 1/4” INPUT.

Connect a compatible power supply (9V center

negative, min. 500 mA) to the power connector.

Connect at least one of the following:

· Headphones into the headphone jack

· USB-C cable between the USB connector and your

computer*

· Instrument cable between one of the balanced 1/4”

outputs and your amplier’s input

· XLR cable between DIRECT OUTPUT and your

mixing desk or audio interface

The Alpha·Omega Photon is pre-programmed with

three presets, A, B, and C that are selectable via the

dedicated footswitches. Press and hold one of the

footswitches for two seconds to save your changes into

a preset. Three additional presets can also be accessed

via MIDI or the Darkglass Suite.

Adjust the level (and headphone volume, if applicable)

to your liking and start playing!

*Using the Alpha·Omega Photon as an audio interface

may require some extra steps depending on your

operating system

CONNECTIONS

INPUT

This is the primary instrument input on the

Alpha·Omega Photon. Connect your instrument or

output from your pedal board to the 1/4” mono jack.

AUX IN

The stereo input of the Alpha·Omega Photon enables

the playback of backing tracks while practicing or

recording. Connect your mobile phone, laptop etc. to

the 1/8” stereo jack.

HEADPHONE OUTPUT

The headphone output can handle headphones

with an impedance of 16 - 600 ohms. Connect your

headphones to the 1/8” stereo jack and set the

desired level from the dedicated potentiometer next

to the jack.

BALANCED OUTPUTS

The two balanced outputs add routing versatility

and the option of using the Alpha·Omega Photon

as a fully equipped audio interface. Connect your

studio monitors, amplier or other effects to the 1/4”

balanced jacks using a TRS connector (Tip +, Ring -,

Sleeve GND).

ALPHA·OMEGA PHOTON: USER GUIDE

If you feed an unbalanced input from these outputs,

use an instrument cable with a mono 1/4” plug.

DIRECT OUTPUT

An XLR output with a ground lift switch provides a

reliable standard connection to a mixing desk or an

external audio interface for a guaranteed low-noise

signal.

MIDI IN

A standard 1/8” TRS (Type B) jack allows connecting

an external MIDI controller to the Alpha·Omega

Photon for even more  exibility. Read more about

the MIDI capabilities at https://www. darkglass.com/

creations/alpha-omega-photon/

USB

The USB-C port unlocks the Alpha·Omega Photon’s

USB audio interface capabilities and enables

interaction with the Darkglass Suite desktop app,

allowing for software updates and access to the

Darkglass IR library, containing hundreds of cabinet

simulations. USB MIDI is also supported.

SIGNAL CHAIN OPTIONS

The position of the Cabsim block in the signal chain

can be changed from the Suite.

ALPHA·OMEGA PHOTON: USER GUIDE

COMPRESSOR

This control allows setting the input

gain of the compressor that will

translate into how much the signal is

compressed while our intelligent make-

up gain algorithm keeps the output of

the compressor at usable levels. The

compressor has 5 ratios available: 4:1, 8:1,

12:1, 20:1 and ALL IN.

DISTORTION

At the heart of the distortion circuit is

an accurate model of the Alpha·Omega

distortion. Carefully developed in

collaboration with Jon Stockman,

the Alpha·Omega offers two distinct

distortions that can be blended for even

further versatility. The familiar Growl and

Bite boost functions are also available for

adding more low end and/or high end

sparkle.

CABINET SIMULATION

The Alpha·Omega Photon supports

Impulse Response (IR) cabinet

simulations and has 5 cabinet slots

on board. The default IRs have been

selected by the Darkglass Team. New IRs

can be assigned to the 5 slots using the

Darkglass Suite (desktop or mobile).

BLEND

The blend control allows you to mix the distorted

signal with the clean sidechain signal.

Last in the signal chain is a programmable 6-band

graphic equalizer that allows you to tailor your sound

even further. The full description of this functionality

can be found in the “Controls” section of the manual.

CONTROLS

SMART POTENTIOMETERS

On the Alpha·Omega Photon, you will nd ve smart

potentiometers: Compression, Drive, Mod, Blend,

and Level. These potentiometers are the main

interface for sculpting the signal chain and your

overall sound on the Alpha·Omega Photon.

The COMPRESSION potentiometer is the one-

knob solution for compression on the Alpha·Omega

Photon. This controls the amount of input gain to

the compressor and intelligently applies the correct

amount of makeup gain so that your signal is always

driven at the appropriate level, no matter how much

compression is applied.

ALPHA·OMEGA PHOTON: USER GUIDE

The DRIVE potentiometer adds distortion and

drive to your signal. Crank this knob to apply the

Alpha·Omega distortion to the distorted part of the

signal chain.

The MOD potentiometer selects or mixes between

the Alpha and Omega circuits. Alpha is punchy, tight

with a lot of denition, whereas Omega is simply

brutal and raw.

The BLEND potentiometer mixes between the

distortion signal and the clean sidechain signal.

The LEVEL potentiometer controls the master

volume of the Alpha·Omega Photon.

The smart potentiometers allow for their positions

to be stored in each preset, with the stored position

indicated by the ring of LEDs surrounding each

potentiometer.

With this, you can get a glance at your signal chain

settings when changing presets, regardless of the

physical potentiometer setting.

TOUCH SENSITIVE SLIDERS

At the center of the Alpha·Omega Photon are the

touch-sensitive sliders that control the 6-band

graphic EQ at the end of the signal chain.

Each slider has a -12 dB to 12 dB range. From left to

right, the frequency bands for each slider correspond

to a low shelf,250 Hz,500 Hz,1.5 kHz,3 kHz, and a

high shelf. You can also change the frequency bands

to 100 Hz,200 Hz,400 Hz,800 Hz,1.6 kHz,3.2 kHz in

the Darkglass Suite.

Controlling the touch sliders is easy - swipe upwards

to boost a frequency band or swipe downwards to

cut a frequency band.

When swiping, the position of the slider is also

reected on the potentiometer LEDs. Double-tap the

slider to reset the band back to 0 dB.

Hint: The sliders respond to the direction of your

swipe on any part of the slider, so you can make

small adjustments without your ﬁnger covering the

actual position of the slider.

ALPHA·OMEGA PHOTON: USER GUIDE

ROTARY FOOTSWITCH ENCODERS

Below the touch sliders are three rotary footswitch

encoders A, B, and C, which can be pressed or rotated.

These footswitch encoders enable many of the

Alpha·Omega Photon’s functions. Simply press A, B, or C

to switch to the preset stored in that footswitch.

The rotational position of each encoder is displayed on

the ve LEDs under each encoder. Additionally, when

rotating, the position is shown on the potentiometer

LEDs - this is a visual aid that does not affect the

potentiometer conguration.

· Rotating Aallows you to change the compressor ratio

or bypass the compressor.

· Rotating Ballows you to change the distortion mode

or bypass the distortion.

· Rotating Callows you to change the active IR in the

signal chain or bypass the IR.

When none of the ve LEDs are lit, the respective

compressor/distortion/IR is bypassed.

Rotating Ballows you to bypass or change the distortion

mode. The modes are:

1. Alpha·Omega

2. Alpha·Omega with GROWL

3. Alpha·Omega with BITE

4. Alpha·Omega with GROWL and BITE

5. Alpha·Omega Studio Rig with GROWL and BITE

BASIC OPERATION

EDITING AND SAVING PRESETS

Editing and saving presets on the Alpha·Omega Photon

is remarkably easy. If any of the parameters are changed

(i.e. potentiometers, sliders, encoder rotation), the color

LED of your current preset will gently breathe, indicating

that the edit or audition mode is active.

Auditions are an easy way to try new sounds and settings,

which can be either saved or discarded. When you nd

a sound that you would like to save, the audition can be

saved into any of the three presets by pressing and holding

one of the preset footswitches for two seconds. All LEDs

on the Alpha·Omega Photon will ash rapidly a few times

indicating that your edits have been saved into a preset.

A new audition is always entered when changing any

parameter from an unedited/saved preset. This will

overwrite any previous unsaved auditions/edits.

During an edit/audition, you can change to any of the

three saved presets by pressing the footswitch associated

with that preset. After changing to a preset, pressing the

footswitch again will swap between that preset and your

active editing session.

ALPHA·OMEGA PHOTON: USER GUIDE

Presets can also be saved, edited, shared, loaded, and

managed in the Darkglass Suite.

For instructional videos on editing and saving the presets,

please visit https://www.darkglass. com/creations/

alpha-omega-photon/

TUNER

To enter the tuner, press Band Csimultaneously.

To exit the tuner, press Band Csimultaneously or one

of the footswitch presets. The Alpha·Omega Photon will

always return to the last active preset. The Alpha·Omega

Photon will not output any audio when tuning.

The Alpha·Omega Photon features a ve-octave

chromatic tuner, which can tune any note between A0

and A#5, allowing you to dial in any guitar or bass tuning

that you desire. The tuning is derived from A4 = 440 Hz.

Only one note can be tuned at a time.

When the tuner mode is entered and there is no input

signal, two red LEDs on the two rightmost sliders are

shown by default. When an input signal is received, the

left section of sliders will update to show the note that

you are tuning.

A small indicator is displayed to the top right of the note

if it is a sharp note.

When tuning, the two rightmost sliders will update to

show how close your tuning is from the note’s perfect

pitch. Distance below the center line indicates that

the note is tuned at, and distance above the center

line indicates that the note is tuned sharp. The red

LEDs will transition to green as you approach the

perfect pitch, and the slider and preset LEDs will fully

illuminate in green when you are on perfect pitch.

BYPASS

To enter the bypass mode, press Aand B

simultaneously.

To exit the bypass mode, press Aand Bsimultaneously

or one of the footswitch presets.

In this mode, the Alpha·Omega Photon does not

perform any processing on the input signal, and

passes the unprocessed input signal through to the

outputs. All LEDs are turned off during bypass mode.

PERFORMANCE LOCK

To enter or exit the performance lock, press A and C

simultaneously.

In this mode, all LEDs will gently breathe on the

Alpha·Omega Photon to indicate that it has been

locked.

ALPHA·OMEGA PHOTON: USER GUIDE

This mode prevents any accidental parameter

changes or edits to your presets. You can still change

between the saved presets A, B, and C, and enter the

tuner or bypass modes, but potentiometer updates,

slider touches, or encoder rotations will not respond

to any changes.

Tip: Enter the performance mode after the

soundcheck while playing live gigs.

BLUETOOTH PAIRING

To begin Bluetooth pairing with the Alpha·Omega

Photon, press and hold an encoder while

simultaneously rotating the encoder. The ve LEDs

under each encoder will illuminate one-by-one,

and pairing will begin when all ve are lit. Look for

“Alpha·Omega Photon” on your list of available

bluetooth devices.

THE ALPHA·OMEGA PHOTON

AS A USB AUDIO INTERFACE

Whatever your DAW of choice is, it’s compatible

with the Alpha·Omega Photon. You can record your

processed signal to one track and simultaneously

record an unprocessed copy to another track.

Recording a stereo track at the same time from the

Aux input is also possible.

The Alpha·Omega Photon supports 48 kHz and 44.1

kHz sampling rates.

SETTING UP THE DRIVERS

If you are using a Mac, no additional drivers are

required to use the Alpha·Omega Photon as an audio

interface.

If you are using Windows, please download the latest

USB audio drivers from https://www.darkglass.com/

suite/. Please refer to the Darkglass website for more

details regarding USB audio.

USB ROUTING

USB output (to Alpha·Omega Photon)

· Output 1: Balanced left + Headphone left

· Output 2: Balanced right + Headphone right

· Output 3: Balanced left

· Output 4: Balanced right

· Output 5: XLR DI (mono)

Both Mac and PC send system audio to outputs 1 and

2 by default, so you can always use the Alpha·Omega

Photon’s stereo output of choice without having to

set up any extra routing.

ALPHA·OMEGA PHOTON: USER GUIDE

The level of these outputs is controlled by the small

volume potentiometer at the top of the Alpha·Omega

Photon. The other outputs have no volume control on

the Alpha·Omega Photon.

USB input (from the Alpha·Omega Photon)

· Input 1: Processed signal

· Input 2: Unprocessed raw signal

· Input 3: Aux left + Bluetooth left

· Input 4: Aux right + Bluetooth right

AUDIO ROUTING

When the Alpha·Omega Photon is not bypassed, the

Level potentiometer always controls the volume of your

instrument input at all four outputs, and has no effect on

the USB/Aux/Bluetooth audio. When the Alpha·Omega

Photon is bypassed, the Level potentiometer has no

effect.

Your instrument, Aux input, and Bluetooth audio is

routed to the headphone and balanced outputs. The

media volume at these outputs can be controlled with

the small potentiometer at the top of the Alpha·Omega

Photon.

· When using the balanced outputs, the media volume

and instrument volume level are separately controlled

(small volume potentiometer at the top of the

Alpha·Omega Photon and the Level potentiometer,

respectively).

· When using headphones, the volume is

controlled in the same way, with one exception:

the headphone volume potentiometer acts as an

overall master volume for both media and your

instrument input.

· The XLR DI output is routed only with your

instrument output and USB output 5.

The media playback volume levelon the Alpha·Omega

Photon is not applied to USB inputs 3 and 4.

DARKGLASS IR LIBRARY

The Darkglass Suite software currently comes with an

extensive library of IR les and hundreds more will be

added in the near future. The library consists of both

bass and guitar cabinets. Captures of Darkglass Elite

Series and Neodymium Series cabinets are available,

among others. Darkglass artists (including Jon

Stockman) have also contributed to the library.

TECHNICAL SPECIFICATIONS

Input impedance: 1 MΩ

Output impedance: 220 Ω

Current consumption: ~500mA

Voltage: 9VDC (center negative)

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