Douk Audio T14-EQ Phono Preamp Manuale d'uso

Introduzione

The Douk Audio T14-EQ is a compact phono preamplifier designed to enhance the audio signal from your turntable, making it compatible with a wider range of audio systems. It features selectable MM (Moving Magnet) and MC (Moving Coil) modes, RIAA equalization, a built-in headphone amplifier, and tone controls for personalized sound adjustment. This manual provides detailed instructions for setup, operation, and troubleshooting to ensure optimal performance.

Cosa c'è nella scatola

T14-EQ Preamp ×1
USB Cable (Type-C) ×1

Douk Audio T14-EQ Phono Preamp and USB-C cable in packaging — Image: The T14-EQ Phono Preamp and its included USB-C power cable, illustrating the contents of the package.

Caratteristiche del prodotto

MM & MC Compatibility: The T14-EQ supports both Moving Magnet (MM) and Moving Coil (MC) cartridges, allowing for versatile use with various turntables. A switch on the bottom of the unit allows selection between these modes. The integrated RIAA circuitry ensures accurate sound reproduction.
Dual Outputs for Speakers & Headphones: Collegare il preamp al tuo amplifier or powered speakers using the stereo RCA outputs. For private listening, a 3.5mm headphone jack is included, capable of driving headphones with impedances from 16Ω to 200Ω.
Customizable Tone Control: Independent bass and treble knobs provide a ±5dB adjustment range, enabling users to fine-tune the audio output to their preference or to compensate for room acoustics and speaker characteristics.
Ultra-Low Noise Performance: Designed with high-quality integrated circuits and a built-in power isolation module, the T14-EQ minimizes background hum and hiss, delivering a clean and detailed audio signal.
Compact & Convenient Design: Housed in a durable all-aluminum shell for interference shielding, the unit features gold-plated PCB and RCA terminals for optimal signal integrity. It is powered by a standard 5V USB source, offering flexible power options.

Istruzioni di installazione

MM/MC Mode Selection: Before connecting, locate the MM/MC switch on the bottom of the T14-EQ unit. Set it to match your turntable's cartridge type (Moving Magnet or Moving Coil). Incorrect selection may result in low volume or distorted sound.
Image: The bottom of the T14-EQ unit, highlighting the MM/MC selector switch. Ensure this switch matches your turntable's cartridge type.
Connect Turntable to PHONO IN: Connect your turntable's RCA output cables to the FONO IN (red for right, white for left) ports on the rear of the T14-EQ. Ensure a secure connection.
Collegare il filo di terra: Attach your turntable's ground wire to the ground terminal on the T14-EQ. This helps eliminate hum and noise.
Image: Detail of the PHONO IN RCA jacks and the ground terminal on the rear panel of the T14-EQ, showing where to connect the turntable's audio and ground wires.
Connettiti a Amplifier/Speakers (LINE OUT): Collegare il LINEA FUORI (red for right, white for left) RCA ports of the T14-EQ to an available line-level input on your amplificatore o altoparlanti amplificati.
Image: Close-up of the LINE OUT RCA ports on the T14-EQ, indicating where to connect to an amplificatore o altoparlanti amplificati.
Connetti alimentazione: Use the provided USB Type-C cable to connect the INGRESSO CC 5V port on the T14-EQ to a 5V USB power source (e.g., a wall charger, computer USB port, or power bank). The power indicator light on the front panel will illuminate.
Image: Detail of the DC 5V IN Type-C power input port on the rear of the T14-EQ.
Collegare le cuffie (facoltativo): If using headphones, plug them into the 3.5mm headphone jack on the front panel. Note that the headphone output has priority; when headphones are connected, the RCA line output will be muted.
Image: The 3.5mm headphone output jack and the power indicator light on the front panel of the T14-EQ.

Rear panel connections of Douk Audio T14-EQ Phono Preamp — Immagine: Un dettaglio view of the rear panel of the T14-EQ, showing the PHONO IN, ground terminal, DC 5V IN (Type-C), and LINE OUT connections.

Istruzioni per l'uso

Accensione/spegnimento e controllo del volume: The large knob on the right of the front panel serves as both the power switch and volume control. Rotate it clockwise to turn the unit on and increase volume. Rotate counter-clockwise to decrease volume and turn the unit off.
Image: The volume knob on the front panel of the T14-EQ, which also functions as the power switch.
Adjusting Tone Controls: Utilizzare il BASS E ALTI knobs to adjust the low and high frequencies of the audio output. Turn clockwise to boost, counter-clockwise to cut. Adjust these to suit your listening preference or room acoustics.
Image: The Bass and Treble adjustment knobs on the front panel of the T14-EQ.
Riproduzione di dischi: Place a record on your turntable, ensure the T14-EQ is powered on, and the volume is set to a low level. Start your turntable and carefully lower the tonearm onto the record. Adjust the volume and tone controls as desired.

Video: This video demonstrates the connection process of the Douk Audio T14-EQ Phono Preamp to a turntable and an amplifier, followed by playing a vinyl record. It shows the physical connections for power, ground, phono input, and line output, as well as the operation of the volume and tone controls.

Manutenzione

Keep the unit clean by wiping with a soft, dry cloth.
Evitare di esporre l'unità alla luce solare diretta, a temperature elevate o all'umidità.
Non tentare di aprire il casing or modify the unit, as this will void the warranty and could cause damage.
Assicurare una ventilazione adeguata attorno all'unità durante il funzionamento.

Risoluzione dei problemi

Problema	Possibile causa	Soluzione
Nessuna uscita audio	Unit not powered on; incorrect connections; volume too low; MM/MC switch incorrect; headphones connected.	Ensure power is connected and unit is on. Check all RCA and ground connections. Increase volume. Verify MM/MC switch setting. Disconnect headphones if using RCA output.
Rumore di ronzio o ronzio	Ground wire not connected or loose; ground loop; interference from other electronics.	Ensure turntable ground wire is securely connected to the T14-EQ. Try connecting the ground wire to your amplifier's ground terminal if available. Move the unit away from other electronic devices.
Suono distorto	MM/MC switch incorrect; input signal too strong; faulty cables.	Verify MM/MC switch setting matches your cartridge. Reduce the output level from the turntable if possible (rare). Try different RCA cables.
L'uscita delle cuffie non funziona	Headphones not fully plugged in; volume too low.	Ensure headphones are fully inserted into the 3.5mm jack. Increase the volume.

Specifiche

Numero modello: XX-T14-EQ-US
Peso dell'articolo: 8 once (circa 227 g)
Dimensioni del prodotto: 3.31 x 3.31 x 1.1 pollici (circa 84 x 84 x 28 mm)
Dispositivi compatibili: Oratore attivo, Amplifier, Headphone, MM MC Turntable, Record Player
Tipo di connettore: Phono, RCA
Tipo di materiale: Metal (All-aluminum shell)
Uscita Wattage: 0.25 Watts (for headphone amplificatore)
Fonte di energia: Elettrico con cavo (USB 5V)
Colore: Nero

Douk Audio T14-EQ Phono Preamp con dimensioni etichettate — Image: The Douk Audio T14-EQ Phono Preamp with its compact dimensions (84mm x 84mm x 28mm) clearly indicated.

Informazioni sulla sicurezza

Non esporre l'unità all'acqua o all'umidità.
Use only the specified 5V USB power supply.
Evitare di posizionare oggetti pesanti sull'unità.
Tenere fuori dalla portata dei bambini.
Scollegare l'alimentazione durante i temporali o quando non si utilizza l'apparecchio per lunghi periodi.

Garanzia e supporto

For warranty information or technical support, please refer to the documentation included with your purchase or contact Douk Audio customer service directly through their official website or the platform where the product was purchased. Please have your model number (T14-EQ) and purchase details ready when contacting support.