SinLoon PP400P Professional Phono Preamp – Dual Output (RCA & ¼-inch) with Ground Terminal & Power Switch, Low Noise Turntable Phonograph Amplifier for Home Audio & DJ Mixing (Black)

Price: ₹5,929 - ₹4,355.35
(as of Oct 24, 2026 05:20:09 UTC – Details)

SinLoon PP400P: Your Professional Vinyl Signal Conversion Hub
The charm of vinyl lies in its warm analog quality, and faithfully transmitting this quality to your audio system is the mission of the SinLoon PP400P. It’s not just a phono preamp; it’s a fully-featured audio hub. Whether connecting to a home Hi-Fi system or interfacing with professional DJ gear or recording equipment, the PP400P is up to the task.
>> Detailed Interface Guide & Connection Instructions
1. Input & Output Connections
RCA Input (L & R): Use RCA audio cables (typically included with your turntable) to connect the Left and Right outputs from your turntable to the corresponding L (Left) and R (Right) RCA input jacks on this unit.
RCA Output (L & R): Use another pair of RCA audio cables to connect the L/R outputs from this unit to the AUX, CD, or TAPE input ports on your amplifier, powered speakers, or home theater system.
¼-inch TRS Output: This is a professional-grade stereo output jack.
If your downstream device (e.g., mixer, audio interface) has a stereo ¼-inch input, use a cable with a ¼-inch TRS plug on one end.
If the downstream device has two mono inputs, use a “Y-cable” with a ¼-inch TRS plug on one end and two TS plugs on the other.
Important Note: To ensure sound quality and device safety, do NOT use both the RCA and ¼-inch TRS output interfaces simultaneously.
2. Power & Grounding
【POWER】Switch & 【ON】Indicator: After connecting the power adapter, the unit receives power, and the 【ON】 indicator will light up signifying standby mode. Press the 【POWER】 button to turn the device on for operation; press it again to turn it off. This design avoids the need for frequent plugging and unplugging of the power adapter.
GND Terminal: This is a key step for improving sound quality! Use the ground wire (usually a thin bare wire or a wire with a spade connector) that came with your turntable. Connect one end securely to the ground terminal on your turntable and tighten the other end to the 【GND】 terminal on this unit. This action can significantly reduce AC hum, resulting in a quieter background.
>> Technical Specifications
Model: SinLoon PP400P
Input Interfaces: RCA L/R (for Magnetic Cartridges)
Output Interfaces: RCA L/R, ¼-inch TRS Stereo
Controls: Dedicated POWER Switch
Indicators: ON Power Indicator
Special Feature: GND Ground Terminal
Power Supply: DC 12V (100-240V Voltage Power Adapter Included)
Housing Material: Metal
Color: Black >> Package List
SinLoon PP400P Main Unit x 1 12V DC Power Adapter x 1
User Manual x 1

【Professional Dual Output Interfaces】 The SinLoon PP400P features both RCA stereo outputs and a ¼-inch TRS balanced output, offering maximum connection flexibility. Easily connect to traditional home amplifiers, powered speakers, or professional DJ mixers and recording equipment, meeting various needs from home listening to professional creation.
【Pure Sound Quality & Anti-Interference Design】 Equipped with a dedicated ground terminal (GND). Connecting your turntable to the preamp via the included ground wire effectively eliminates hum caused by electrical potential differences between devices, significantly reducing background noise interference and ensuring clean output sound quality, allowing you to focus on the nuanced performance of the music itself.
【Smart Control & Visual Indicators】 The front panel features a separate 【POWER】switch button and a clear 【ON】power indicator. You can completely control the circuit power without unplugging the adapter, making it both safe and convenient. The indicator provides immediate clarity on the device’s status for a straightforward user experience.
【Wide Compatibility & Precise Matching】 Designed specifically for turntables with magnetic cartridges. Through the standard RCA input interfaces, it accurately receives the weak audio signal from the cartridge and restores/amplifies it via the internal precision RIAA equalization circuit, perfectly matching modern audio systems to awaken the soul of every vinyl record.
【Plug-and-Play & Robust Construction】 Includes a globally compatible 100-240V power adapter. The all-metal casing is not only sturdy but also effectively shields against external electromagnetic interference. Connect the cables and ground wire according to the instructions, turn on the power, and enjoy your music—providing a stable and reliable “turntable upgrade” solution.