1. Introducció
This manual provides detailed instructions for the Darkglass AO900 Alpha Omega 900 bass amplifier head and the Darkglass Intelligent Footswitch (IFS). The AO900 is a high-performance 900-watt bass amplifier designed to deliver powerful and versatile tones. It integrates Darkglass's Alpha and Omega drive engines, a studio-grade VCA compressor, and a comprehensive graphic equalizer. The IFS Footswitch provides remote control over key ampfuncions de lificació.
2. Característiques clau
- 900-watt power output for robust performance.
- Integrated Alpha and Omega distortion engines for diverse tonal shaping.
- Studio-grade VCA compressor for dynamic control.
- 6-band graphic equalizer for precise tone sculpting.
- MIDI programmability for advanced control.
- Impulse response cabinet simulation with three storable virtual cabinets.
- Auxiliary input and headphone output for silent practice.
- Includes Darkglass Intelligent Footswitch for remote control.
3. Configuració
Follow these steps to set up your Darkglass AO900 amplifier and IFS Footswitch:
- Connexió d'alimentació: Connecteu el amplifier to a suitable power outlet using the provided power cable. Ensure the power switch is in the OFF position before connecting.
- Connexió de l'instrument: Plug your bass guitar into the ENTRADA jack on the front panel. Select the appropriate PASSIU / ACTIU switch setting based on your instrument's output.
- Connexió de l'altaveu: Connect your speaker cabinet to the speaker output on the rear panel. Ensure the speaker impedance matches the amprequisits de producció del lificador.
- Footswitch Connection: Connect the Darkglass Intelligent Footswitch to the designated footswitch input on the ampLifer utilitzant un cable d'instrument estàndard.
- Encesa inicial: Enceneu el amplifier's power switch. The power indicator will illuminate.
4. Controls i Funcions

Image 1: Front panel of the Darkglass AO900 Alpha Omega 900 bass amplifier head (left) and the Darkglass Intelligent Footswitch (right).
4.1. Amplifier Head (AO900)
- ENTRADA: 1/4-inch jack for instrument connection.
- Interruptor PASSIU/ACTIU: Selects input impedance for passive or active instruments.
- COMP: Controls the amount of compression applied to the signal.
- CONDUIR: Adjusts the amount of distortion from the Alpha Omega engine.
- NIVELL: Sets the output level of the distorted signal.
- MOD: Blends between the Alpha (tight, percussive) and Omega (brutal, raw) distortion circuits.
- BARREJA: Mixes the clean input signal with the distorted signal from the Alpha Omega engine.
- GUANY: Controls the overall gain of the Alpha Omega engine.
- GRUIX: A switch that provides a bass boost for a thicker, more powerful tone.
- MOSCA: A switch that provides a treble boost for added presence and clarity.
- Equalitzador gràfic: Four sliders visible on the front panel (250 Hz, 500 Hz, 1.5 kHz, 5 kHz) allow for precise frequency adjustments. The amplifier features a 6-band graphic equalizer in total.
- MUT: Silencia el ampsortida del lifier.
- MÀSTER: Controla el volum de sortida general del ampmés viu.
4.2. Intelligent Footswitch (IFS)
- Footswitch Button: Toggles the distortion engine on/off or mutes the amplifier, depending on the programmed function.
- LED d'encesa: Indica el ampel lifier està encès.
- DISTORTION LED: Indicates when the Alpha Omega distortion engine is active.
- LED MUTE: Indica quan el amplifier's output is muted.
5. Instruccions de funcionament
To operate your Darkglass AO900 and IFS Footswitch:
- After completing the setup, ensure all volume controls (including MESTRE) are set to a low level before playing.
- Augmentar gradualment el MESTRE volume to your desired listening level.
- Utilitza el CONDUCIR, NIVELL, MOD, BARCELONA, i GUANYA controls to dial in your desired distortion tone. Experiment with the GRIGIR i MOSSEGUADA switches for additional tonal variations.
- Adjust the graphic equalizer sliders (250 Hz, 500 Hz, 1.5 kHz, 5 kHz) to fine-tune your frequency response.
- Engage the compressor using the COMP knob to control dynamics.
- Use the IFS Footswitch to remotely activate/deactivate the distortion engine or mute the amplifier as needed during performance. The corresponding LEDs on the footswitch will indicate the active status.
- For silent practice, connect headphones to the headphone output and use the auxiliary input for backing tracks.
6. Manteniment
Un manteniment adequat garanteix la longevitat i el rendiment òptim del vostre ampmés viu:
- Neteja: Utilitzeu un drap suau i sec per netejar-lo ampl'exterior del purificador. Eviteu netejadors o dissolvents abrasius.
- Emmagatzematge: Emmagatzemar el ampGuardar en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Ventilació: Assegureu-vos una ventilació adequada al voltant amplifier to prevent overheating. Do not block ventilation openings.
- Transport: When transporting, use appropriate protective cases to prevent physical damage.
7. Solució De Problemes
Si teniu problemes, tingueu en compte els passos habituals següents per resoldre'ls:
- Sense energia: Check the power cable connection and the power outlet. Ensure the power switch is ON.
- Sense so: Verify all cable connections (instrument, speaker, footswitch). Check the MESTRE volume and ensure the MUT function is not active on the amplifier or footswitch. Confirm your instrument is working correctly.
- So distorsionat (no intencionat): Check input gain levels and ensure they are not excessively high. Adjust CONDUCIR i NIVELL controls.
- El pedal no respon: Ensure the footswitch cable is securely connected.
- Sobreescalfament: Assegureu-vos el amplifier has adequate ventilation. If the amplifier shuts down due to overheating, allow it to cool down before restarting.
Si els problemes persisteixen, consulteu un tècnic qualificat.
8. Especificacions
- Model: AO900
- Potència de sortidatage: 900 watts
- Format del senyal: Analògic
- Number of EQ Bands: 6 (Graphic Equalizer)
- Pes de l'article: 1 pound (amplifier head)
- Dimensions del producte: 3 x 3 x 3 inches (amplifier head)
- ASIN: B07R4X6GH2
- UPC: 768563721939
9. Garantia i Suport
Darkglass Electronics products are designed for reliability and performance. For specific warranty information, please refer to the warranty card included with your product or visit the official Darkglass Electronics website. For technical support or service inquiries, please contact Darkglass customer service through their official channels.





