1. Увод
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. Садржај пакета
Молимо вас да проверите да ли су све компоненте присутне у пакету:
- 1 x Pickup Unit
- 1 x Завршни пин утичница
- 1 x Вибрирајућа сирена
- 1 x жица за прикупљање података
- 1 к кабл типа Ц
- КСНУМКС к Цлипс

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)
Ово је уграђени претходниamplifier 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 ampлифиер или ПА систем.

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. Упутство за употребу
4.1. Укључивање/искључивање и пуњење
Преamp 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.

Слика 4.1: Пуњење претходникаamp via the Type-C port.
4.2. Контроле и функције
The main control dial and surrounding buttons allow for easy adjustment of various parameters:

Слика 4.2: Завршеноview од преamp контроле.
- Контролор: Main rotary dial for adjusting volume and navigating settings.
- Dial LED Lamp / Indicator: Provides visual feedback on settings and battery status.
- Интерфејс типа Ц: Used for charging the internal battery.
- БТ (Блуетоотх): Activates Bluetooth 5.0 connectivity for pairing with external devices (e.g., smartphone) to play background music or accompaniment.
- АУКС: Likely an auxiliary input or function related to external audio.
- Реверб: Controls the reverb effect, adding spatial depth to the guitar sound.
- Рефрен: Controls the chorus effect, creating a thicker, modulated sound.
- кашњење: Controls the delay effect, producing echoes of the guitar sound.
- Миц: 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
Преamp 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. Одржавање и њега
- Одржавајте уређај чистим брисањем меком, сувом крпом. Избегавајте употребу абразивних средстава за чишћење или растварача.
- Заштитите уређај од екстремних температура, влаге и директне сунчеве светлости.
- Избегавајте испуштање уређаја или његово излагање јаким ударцима.
- Уверите се да је порт за пуњење типа C без прашине и остатака.
- If the unit will not be used for an extended period, charge the battery periodically to maintain its health.
КСНУМКС. Решавање проблема
- Нема излаза звука:
- Ensure the unit is powered on and sufficiently charged.
- Check all cable connections, including the end-pin jack to your amplifier/PA system.
- Verify that the volume on the preamp и твој ampЛифиер је окренут горе.
- If using the microphone pickup, ensure it is connected to a speaker system for effectiveness.
- Проблеми са Блуетоотх везом:
- Обезбедите претходноamp's Bluetooth function is activated.
- Make sure your external device's Bluetooth is on and discoverable.
- Приближите уређаје један другом како бисте били сигурни да су у домету.
- Покушајте да раскинете упаривање и поново упарите уређаје.
- Ефекти не раде:
- Check the effect level controls (Reverb, Chorus, Delay) on the preamp.
- Ensure the unit is properly installed and receiving signal from the guitar.
- Батерија се не пуни:
- Verify the Type-C cable is securely connected to both the preamp и извор напајања.
- Пробајте други Type-C кабл или адаптер за напајање.
- Уверите се да је извор напајања функционалан.
7. Спецификације
| Феатуре | Спецификација |
|---|---|
| Материјал | АБС |
| Батерија | 1 x пуњива литијум-јонска батерија од 2000 mAh |
| Item Size (Preamp Јединица) | 90 * 50 * 45 мм / 3.54 * 1.97 * 1.77 ин |
| Item Weight (Preamp Јединица) | 207 г / 7.30 оз |
| Тежина пакета | 357 г / 12.59 оз |
| Величина пакета | 17.5 * 12 * 6 цм / 6.89 * 4.7 * 2.36 инча |
| Повезивање | Bluetooth 5.0, Type-C (charging) |
| Ефекти | Reverb, Chorus, Delay |
| Пицкуп Систем | Dual-pickup (Piezo and Microphone) |
| Посебне карактеристике | SFT (Same Frequency Trans) technology, DSP |

Figure 7.1: Dimensions of the preamp јединица.
8. Гаранција и подршка
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.