1. Уводзіны
The Double OS1 Resonance Pickup On-Board Preamp is an innovative guitar preamplifier system designed to enhance acoustic guitar sound. It features a unique Same Frequency Trans (SFT) transmission device that drives the guitar body to resonate, producing a more resonant, solid, and dynamic sound even without an external amplifier. This system integrates a dual-pickup setup, combining a piezo pickup and a microphone, to capture every detail of your playing. It also includes built-in reverb, chorus, and delay effects, along with Bluetooth connectivity for accompaniment.
2. Змесціва ўпакоўкі
Калі ласка, пераканайцеся, што ўсе кампаненты прысутнічаюць у камплекце:
- 1 x Pickup Unit
- 1 x End-Pin Jack
- 1 x Vibrating Horn
- 1 x Pickup Wire
- 1 х кабель Type-C
- 2 х кліпы

Figure 2.1: Included components of the Double OS1 Resonance Pickup system. Note that the pickup wire and vibrating horn may vary in appearance (random delivery).
3. Installation (Requires Opening Holes)
This is an on-board preamplifier system that requires permanent installation into your guitar. This process involves opening holes in the guitar body to accommodate the pickup unit and end-pin jack. Professional installation by a qualified luthier or guitar technician is highly recommended to prevent damage to your instrument.
The main unit is designed to be mounted on the side of the guitar, providing easy access to controls. The end-pin jack replaces the existing end-pin, serving as both a strap button and an output for connecting to an ampLifier або PA сістэма.

Figure 3.1: The preamp unit installed on a guitar, demonstrating its on-board nature and the necessity for guitar modification.

Figure 3.2: The preamp unit seamlessly integrated into the guitar body.
4. Інструкцыя па эксплуатацыі
4.1. Уключэнне/выключэнне і зарадка
Папярэднеamp is equipped with a 2000mAh rechargeable Li-ion battery. To charge the unit, connect the provided Type-C cable to the Type-C interface on the preamp and a suitable USB power source. The charging rate is increased by 50% for faster charging.

Figure 4.1: Charging the preamp via the Type-C port.
4.2. Элементы кіравання і функцыі
The main control dial and surrounding buttons allow for easy adjustment of various parameters:

Малюнак 4.2: Закончанаview папярэдamp органы кіравання.
- кантролер: Main rotary dial for adjusting volume and navigating settings.
- Dial LED Lamp / Indicator: Provides visual feedback on settings and battery status.
- Інтэрфейс Type-C: Used for charging the internal battery.
- BT (Bluetooth): Activates Bluetooth 5.0 connectivity for pairing with external devices (e.g., smartphone) to play background music or accompaniment.
- AUX: Likely an auxiliary input or function related to external audio.
- Рэверберацыя: Controls the reverb effect, adding spatial depth to the guitar sound.
- Прыпеў: Controls the chorus effect, creating a thicker, modulated sound.
- Затрымка: Controls the delay effect, producing echoes of the guitar sound.
- Мікрафон: Adjusts the level or activates the internal microphone pickup.
4.3. SFT (Same Frequency Trans) Technology
The SFT system utilizes a transmission device to vibrate the guitar body, enhancing its natural resonance. This feature allows the guitar to produce a louder, more vibrant sound without requiring an external amplifier. The system picks up the guitar's sound and uses the transmission device to drive the guitar body, increasing its frequency response and making the sound more resonant, solid, and dynamic.
4.4. Dual-Pickup System
Папярэднеamp incorporates a dual-pickup system consisting of a piezo pickup and a microphone. This combination ensures that every nuance of your playing is captured, adding richness and dynamics to the guitar's amplified sound. The microphone component requires connection to a speaker system to be effective.
4.5. Digital Signal Processing (DSP)
The system features advanced scientific circuit design with DSP (Digital Signal Processing) for enhanced acoustic dynamics and digital gain output. This ensures high-quality sound processing for the integrated effects and overall output.

Figure 4.3: Internal components and advanced circuit design.

Figure 4.4: Key features including Bluetooth, accompaniment, and DSP vibration effects.
5. Тэхнічнае абслугоўванне і догляд
- Падтрымлівайце чысціню прылады, праціраючы яе мяккай сухой тканінай. Пазбягайце выкарыстання абразіўных ачышчальнікаў або растваральнікаў.
- Protect the unit from extreme temperatures, humidity, and direct sunlight.
- Пазбягайце падзення прылады або моцных удараў.
- Пераканайцеся, што порт зарадкі Type-C не мае пылу і смецця.
- If the unit will not be used for an extended period, charge the battery periodically to maintain its health.
6. Выпраўленне непаладак
- Няма выхаду гуку:
- Ensure the unit is powered on and sufficiently charged.
- Check all cable connections, including the end-pin jack to your ampсістэма награвання/агучвання.
- Verify that the volume on the preamp і ваш amplifier падвернуты.
- If using the microphone pickup, ensure it is connected to a speaker system for effectiveness.
- Праблемы з падключэннем Bluetooth:
- Пераканайцеся, што папярэдняяamp's Bluetooth function is activated.
- Пераканайцеся, што Bluetooth вашай знешняй прылады ўключаны і даступны для пошуку.
- Размясціце прылады бліжэй адна да адной, каб пераканацца, што яны знаходзяцца ў зоне дасяжнасці.
- Паспрабуйце адлучыць прылады і зноў падключыць іх.
- Эфекты не працуюць:
- Check the effect level controls (Reverb, Chorus, Delay) on the preamp.
- Ensure the unit is properly installed and receiving signal from the guitar.
- Акумулятар не зараджаецца:
- Verify the Type-C cable is securely connected to both the preamp і крыніца харчавання.
- Паспрабуйце іншы кабель Type-C або адаптар харчавання.
- Пераканайцеся, што крыніца харчавання спраўная.
7. Тэхнічныя характарыстыкі
| Асаблівасць | Спецыфікацыя |
|---|---|
| Матэрыял | АБС |
| акумулятар | 1 x 2000mAh rechargeable Li-ion battery |
| Item Size (Preamp Unit) | 90 * 50 * 45 мм / 3.54 * 1.97 * 1.77 цалі |
| Item Weight (Preamp Unit) | 207 г / 7.30 унцый |
| Вага ўпакоўкі | 357 г / 12.59 унцый |
| Памер упакоўкі | 17.5 * 12 * 6 см / 6.89 * 4.7 * 2.36 цалі |
| Сувязь | Bluetooth 5.0, Type-C (charging) |
| Эфекты | Reverb, Chorus, Delay |
| Сістэма пікапа | Dual-pickup (Piezo and Microphone) |
| Асаблівасці | SFT (Same Frequency Trans) technology, DSP |

Figure 7.1: Dimensions of the preamp адзінка.
8. Гарантыя і падтрымка
Specific warranty information for this product is not provided in the available documentation. For any warranty claims, technical support, or service inquiries, please contact the seller or manufacturer directly through your purchase platform. Retain your proof of purchase for any support requests.