1. Introducció
The DOUBLE OS1 Resonance Pickup On-board Preamp is an innovative system designed to enhance your guitar's acoustic sound. It features SFT (Same Frequency Trans) technology, which drives the guitar body to resonate, increasing frequency response and making the sound more resonant, solid, and dynamic. This preamp also includes built-in Reverb, Chorus, and Delay effects, along with Bluetooth 5.0 connectivity for practice accompaniment. It utilizes a dual-pickup system combining a piezo pickup and a microphone to capture and enrich every detail of your playing.
2. Contingut del paquet
Si us plau, reviseu el paquet amb cura per assegurar-vos que hi hagi tots els elements:
- 1 x OS1 Resonance Pickup On-board Preamp Unitat
- 1 x Jack de terminal
- 1 x Botó vibrador
- 1 x Cable de recollida
- 1 x cable de càrrega tipus C
- 2 x Clips de muntatge
- 1 x Manual d'usuari (aquest document)

3. Producte acabatview
The DOUBLE OS1 preamp features an intuitive control layout and robust connectivity options.

Controls i interfícies:
- Controlador: Main rotary knob for volume and menu navigation.
- Dial LED Lamp: Visual indicator for various functions and levels.
- Indicador: Llum d'estat.
- Interfície tipus C: For high-speed charging.
- BT (Bluetooth): Button/indicator for Bluetooth connectivity.
- AUX: Entrada auxiliar per a fonts d'àudio externes.
- Reverb: Effect control button.
- Cor: Effect control button.
- Retard: Effect control button.
- Micròfon: Microphone input/control.
- Ports d'entrada/sortida: Standard audio input and output connections.

4. Configuració i instal·lació
Important Note: This is an on-board preamp that requires opening holes in your guitar for proper installation. Professional installation is recommended.

Passos d'instal·lació:
- Prepare Guitar: Carefully mark and cut the necessary openings on your guitar body for the preamp unit and end-pin jack.
- Instal·leu el jack de la clavilla final: Secure the end-pin jack into its designated hole.
- Connecteu el cable de recollida: Connect the pickup wire from your guitar's internal pickup to the preamp unitat.
- Install Vibrating Horn: Mount the vibrating horn inside the guitar body, ensuring good contact for optimal resonance.
- Mont Preamp Unitat: Secure the main preamp unit into the prepared opening on the guitar body using the provided clips or appropriate fasteners.
- Càrrec inicial: Before first use, fully charge the preamp using the Type-C cable.
Càrrega de la bateria:
The OS1 preamp is equipped with a 2000mAh rechargeable lithium battery. To charge:
- Connect the provided Type-C cable to the Type-C interface on the preamp.
- Connect the other end of the cable to a suitable USB power source (e.g., computer, USB wall adapter).
- The indicator light will show charging status (refer to product for specific light behavior).
- A full charge significantly increases the charging rate by 50% compared to standard charging.

5. Instruccions de funcionament
Encès/apagat:
The main Controller knob likely serves as the power switch. Rotate or press the Controller knob to power the unit on or off.
Ajust dels efectes:
- Reverb: Press the 'Reverb' button to activate/deactivate the reverb effect. Rotate the Controller knob to adjust the reverb level.
- Cor: Press the 'Chorus' button to activate/deactivate the chorus effect. Rotate the Controller knob to adjust the chorus level.
- Retard: Press the 'Delay' button to activate/deactivate the delay effect. Rotate the Controller knob to adjust the delay level.
Bluetooth Connectivity (BT5.0):
- Press and hold the 'BT' button until the indicator light flashes, indicating pairing mode.
- On your mobile device, search for 'DOUBLE OS1' (or similar name) in the Bluetooth settings.
- Seleccioneu el dispositiu que voleu emparellar. Un cop connectat, l'indicador lluminós quedarà fix.
- You can now play background music from your device through the preamp for practice or accompaniment.
Ús del micròfon:
The built-in microphone captures the guitar's natural acoustic sound. For the microphone's effects to be audible and effective, the preamp must be connected to an external speaker or ampmés viu.
Entrada AUX:
Use the AUX input to connect external audio devices directly to the preamp. This allows you to mix external audio with your guitar sound.
6. Manteniment
Cura de la bateria:
- The OS1 uses a 2000mAh 18650 rechargeable battery.
- Do not expose the battery to high temperatures, fire, or water.
- No desmunteu ni modifiqueu la bateria.
- Eviteu curtcircuitar la bateria.
- Always dispose of batteries responsibly according to local regulations.

Neteja:
Netegeu la unitat amb un drap suau i sec. No utilitzeu productes de neteja abrasius ni dissolvents.
7. Solució De Problemes
- La unitat no s'encén: Ensure the battery is fully charged. Check that the battery is correctly inserted into the compartment.
- Sense sortida de so: Verify all cables (pickup wire, output to amplifier) are securely connected. Check the volume level on both the preamp i el teu ampmés viu.
- Microphone not effective: Assegureu-vos que la preamp is connected to an external speaker or amplifier. The microphone's effects are primarily heard through an ampsortida lificada.
- Problemes de connexió Bluetooth: Assegureu-vos que el preamp is in pairing mode (flashing BT indicator). Ensure your mobile device's Bluetooth is on and within range. Try restarting both devices.
8. Especificacions
| Característica | Especificació |
|---|---|
| Material | Plàstic ABS |
| Bateria | 1 x 2000mAh Rechargeable Lithium Battery (18650 type) |
| Dimensions (L x A x A) | 90 mm x 50 mm x 45 mm (3.54 polzades x 1.97 polzades x 1.77 polzades) |
| Pes de l'article | 207 g (7.30 oz) |
| Connectivitat | Bluetooth 5.0, Type-C Charging Port, AUX Input, Audio Input/Output |
| Efectes | Reverb, Chorus, Delay |
| Sistema de recollida | Dual-pickup (Piezo and Microphone) |


9. Consells d'usuari
- Instal·lació professional: Due to the requirement of opening holes in your guitar, consider professional installation to ensure proper fit and function, and to avoid damage to your instrument.
- Micròfon Amplificació: Remember that the microphone component of the dual-pickup system will only be fully effective when the preamp is connected to an external amplifier o altaveu.
- Bluetooth per a la pràctica: Utilize the Bluetooth 5.0 feature to connect your phone or tablet and play along with backing tracks, making practice sessions more engaging.
- Comprovació de la bateria: If the unit doesn't power on, always check the battery first. The OS1 uses a standard 18650 rechargeable battery.
10. Garantia i Suport
For any questions, technical support, or warranty inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase. Specific warranty terms and conditions may vary and are typically provided at the point of sale or on the manufacturer's official weblloc.





