1. Úvod
This manual provides detailed instructions for the installation, operation, and maintenance of your PAC SNI-50A Adjustable High Power 2-Channel Line Out Converter. The SNI-50A is designed to convert high-level (speaker-level) audio signals from a factory or aftermarket car stereo into low-level (RCA line-level) signals, allowing you to connect an aftermarket amplifier. This device ensures optimal sound quality and system compatibility.
2. Bezpečnostní informace
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov.
- Před zahájením jakékoli elektrické instalace vždy odpojte baterii vozidla.
- Ujistěte se, že veškeré vedení je řádně izolováno a zajištěno, aby se zabránilo zkratům a poškození.
- Pokud si nejste jisti některou částí procesu instalace, poraďte se s profesionálním instalatérem autorádií.
- Nevystavujte zařízení vlhkosti nebo extrémním teplotám.
3. Konec produktuview a funkce
The PAC SNI-50A is a compact and efficient solution for integrating aftermarket amplifiers with factory audio systems. Its key features include:
- 2-Channel Adjustable Output: Provides two channels of adjustable low-level RCA output.
- High Power Input: Capable of handling up to 50 watts maximum input per channel from speaker-level signals.
- Linear Frequency Response: Delivers a linear 20 to 20,000Hz output, accurately reproducing the input signal.
- Transformer Isolated: Designed with transformer isolation for optimal sound quality and performance, minimizing noise.
- Správné pHasing: Maintains correct audio phasing for accurate sound reproduction.

Figure 1: The PAC SNI-50A Adjustable High Power 2-Channel Line Out Converter, showing its compact black casing, PAC logo, model number, speaker wire input harness, and two RCA output jacks.
4. Obsah balení
Ověřte, zda jsou v balení přítomny všechny položky:
- PAC SNI-50A Adjustable High Power 2-Channel Line Out Converter
- Wiring harness (pre-attached)
5. Nastavení a instalace
Správná instalace je klíčová pro optimální výkon. Doporučuje se, aby instalaci provedl kvalifikovaný odborník.
5.1 Zapojení kabeláže
- Identify Speaker Wires: Locate the left and right speaker output wires from your factory or aftermarket head unit. These are typically positive (+) and negative (-) pairs for each channel.
- Connect High-Level Input: Connect the corresponding speaker wires from your head unit to the input wires of the SNI-50A's wiring harness. Ensure correct polarity (positive to positive, negative to negative) for each channel. The SNI-50A typically uses color-coded wires for left and right channels.
- Connect RCA Output: Plug your RCA cables from the SNI-50A's RCA output jacks into the input jacks of your aftermarket ampživější.
- Základy: While the SNI-50A is transformer isolated, a proper ground connection for the amplifier and head unit is essential for noise-free operation.
5.2 Montáž
Mount the SNI-50A in a secure, dry location away from excessive heat or moisture. Ensure it is not exposed to direct sunlight or moving parts. Use screws or zip ties to secure the unit.
6. Návod k obsluze
The PAC SNI-50A is designed for straightforward operation once installed. Its primary function is to convert speaker-level signals to RCA line-level signals, which are then sent to an ampživější.
6.1 Adjusting Output Level
The SNI-50A features adjustable output levels. These adjustments are typically small potentiometers (screws) on the unit itself, allowing you to match the output signal strength to the input sensitivity of your amplifier. Use a small screwdriver to carefully turn the adjustment screws. Start with the adjustments at their minimum setting and gradually increase them until the desired volume and clarity are achieved without distortion.
- Nastavte hlasitost hlavní jednotky na přibližně 75 % maxima.
- Adjust the SNI-50A's output level until the amplifier's input gain is set correctly (refer to your amplifier's manual for gain setting instructions).
- Avoid setting the output level too high, as this can introduce distortion.
7. Údržba
The PAC SNI-50A requires minimal maintenance to ensure long-term performance.
- Čištění: Periodically wipe the unit with a soft, dry cloth to remove dust. Do not use liquid cleaners or solvents.
- Spojení: Občas zkontrolujte všechna kabelová spojení, abyste se ujistili, že jsou bezpečná a bez koroze.
- Prostředí: Ensure the unit remains in a dry, stable environment, protected from extreme temperatures and vibrations.
8. Řešení problémů
If you experience issues with your SNI-50A, refer to the following common problems and solutions:
| Problém | Možná příčina | Řešení |
|---|---|---|
| Žádný zvuk od ampdoživotní |
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| Zkreslený zvuk |
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| Engine noise or hum |
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9. Specifikace
| Model | SNI-50A |
| Kanály | 2-kanál |
| Maximální vstupní výkon | 50 wattů na kanál |
| Frekvenční odezva | 20 Hz - 20,000 XNUMX Hz |
| Izolace | Transformátor izolovaný |
| Rozměry (D x Š x V) | 7.5 x 6.15 x 1.8 palce |
| Hmotnost | 5.6 unce (0.35 lb) |
10. Záruka a podpora
For warranty information and technical support, please refer to the official PAC webnebo kontaktujte jejich zákaznický servis. Uschovejte si účtenku jako doklad o koupi.
PAC Customer Support: Prosím navštivte pac-audio.com/support for the latest support resources, FAQs, and contact information.





