Nobsound T8 PRO 7-Band EQ Vacuum Tube Preampmés viu

Introducció

The Nobsound T8 PRO is an advanced 7-band EQ vacuum tube preamplifier designed to enhance your audio experience. It features independent frequency band control, real balanced XLR and RCA inputs/outputs, and classic 6H1N-BN vacuum tubes for a warm, detailed, and dynamic sound. This manual provides essential information for setting up, operating, and maintaining your T8 PRO preampmés viu.

Instruccions de seguretat

• Assegureu-vos que la font d'alimentació voltage matches the requirements of the unit.
• No exposeu la unitat a l'aigua, la humitat ni a temperatures extremes.
• Eviteu col·locar la unitat sota la llum solar directa o a prop de fonts de calor.
• No obriu la c.asing; demaneu totes les tasques de manteniment a personal qualificat.
• Handle vacuum tubes with care as they can be fragile and become hot during operation.
• Desconnecteu l'alimentació abans de fer qualsevol connexió o realitzar tasques de manteniment.

Contingut del paquet

Si us plau, comproveu que tots els articles estiguin inclosos al vostre paquet:

• 1 x Nobsound T8 PRO Preampmés viu
• 2 x 6H1N-BN Vacuum Tubes
• 1 x adaptador d'alimentació DC 12V
• 1 x Manual d'usuari

Image: Contents of the Nobsound T8 PRO package, showing the preamplifier unit, two 6H1N-BN vacuum tubes, and the DC 12V power adapter.

Producte acabatview

Controls del panell frontal

Imatge: Detallada view of the T8 PRO front panel, indicating the function of each knob and switch.

1. Interruptor selector d'entrada: Toggles between CH1 (XLR/RCA) and CH2 (RCA) inputs, or OFF.
2. Indicador d'alimentació: S'il·lumina quan la unitat està engegada.
3. 50Hz Adjustment Knob: Controls the gain for the 50Hz frequency band.
4. 125Hz Adjustment Knob: Controls the gain for the 125Hz frequency band.
5. 315Hz Adjustment Knob: Controls the gain for the 315Hz frequency band.
6. 750Hz Adjustment Knob: Controls the gain for the 750Hz frequency band.
7. 2KHz Adjustment Knob: Controls the gain for the 2KHz frequency band.
8. 6KHz Adjustment Knob: Controls the gain for the 6KHz frequency band.
9. 16KHz Adjustment Knob: Controls the gain for the 16KHz frequency band.
10. Control de volum: Ajusta el volum de sortida general.
11. Ajust del saldo: Fine-tunes the left/right channel balance.

Connexions del panell posterior

Imatge: Detallada view of the T8 PRO rear panel, showing the balanced XLR and RCA input/output ports, and the DC 12V power input.

1. CH1 Input (XLR): Balanced XLR input for audio sources.
2. CH2 Input (RCA): Unbalanced RCA input for audio sources.
3. Output (XLR): Balanced XLR output to power amplifier o altaveus actius.
4. Sortida (RCA): Unbalanced RCA output to power amplifier o altaveus actius.
5. Entrada DC 12V: Power connection port for the included DC 12V adapter.

Configuració

1. Vacuum Tube Installation

Carefully insert the two 6H1N-BN vacuum tubes into their respective sockets on the top of the preamplifier. Ensure they are seated firmly and correctly oriented. Avoid forcing them.

2. Connexió de fonts d'àudio

The T8 PRO supports two input channels:

• XLR Input (CH1): Connect your balanced audio source (e.g., DAC, CD player) to the XLR input ports on the rear panel.
• RCA Input (CH2): Connect your unbalanced audio source to the RCA input ports on the rear panel.

3. Connexió a Amplificador/altaveus

Connect the T8 PRO to your power amplifier or active speakers using either the XLR or RCA output ports:

• Sortida XLR: For balanced connections, use XLR cables to connect the T8 PRO's XLR output to your power amplifier o altaveus actius.
• Sortida RCA: For unbalanced connections, use RCA cables to connect the T8 PRO's RCA output to your power amplifier o altaveus actius.

Image: The T8 PRO preamplifier connected to a pair of active speakers, illustrating typical audio connections.

4. Connexió d'alimentació

Connect the included DC 12V power adapter to the DC 12V input port on the rear panel of the T8 PRO, then plug the adapter into a suitable power outlet.

Imatge: Una imatge interna view of the T8 PRO preamplifier, showing the circuit board and connected audio cables, demonstrating the unit's design and connectivity.

Instruccions de funcionament

1. Encendre/apagar

Use the input selector switch on the front panel to turn the unit ON (CH1 or CH2) or OFF. The power indicator will light up when the unit is on.

2. Selecció d'entrada

Select the desired audio input (CH1 for XLR, CH2 for RCA) using the input selector switch.

3. Adjusting EQ Bands

The T8 PRO features seven independent EQ adjustment knobs for precise sound shaping:

• 50Hz, 125Hz, 315Hz, 750Hz, 2KHz, 6KHz, 16KHz: Rotate these knobs to boost or cut the gain for each specific frequency band. Adjusting these can compensate for room acoustics or tailor the sound to your preference.

Image: The T8 PRO preamplifier in an audio setup, highlighting the 7-band EQ controls for sound customization.

4. Control de volum

Use the 'VOL' knob to adjust the overall output volume to your desired listening level.

5. Ajust d'equilibri

The 'BAL' knob allows for fine adjustment of the left and right channel balance, ensuring a centered soundstage.

6. Tube Rolling (Optional)

The T8 PRO features a pluggable socket design, allowing users to experiment with different compatible vacuum tubes (e.g., 12AU7, ECC85, 6SN7GT, 6N1, 6AQ8) to achieve various sound signatures. Ensure the unit is powered off and cooled down before replacing tubes. Refer to compatible tube types for safe replacement.

Image: A close-up of the 6H1N-BN vacuum tubes glowing on the T8 PRO, illustrating the tube-based audio enhancement feature.

Manteniment

• Neteja: Use a soft, dry cloth to clean the unit. Do not use liquid cleaners or abrasive materials.
• Cura del tub: Vacuum tubes have a finite lifespan. If you notice a degradation in sound quality or tube failure, replace them with compatible tubes. Ensure the unit is off and cool before handling tubes.
• Ventilació: Ensure adequate ventilation around the unit to prevent overheating, especially around the vacuum tubes.

Resolució de problemes

Especificacions

Informació de la garantia

The Nobsound T8 PRO preamplifier comes with a warranty period:

• Tubs de buit: 3 mesos
• Unitat principal: 1 any

Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or natural disasters.

Suport

If you encounter any issues or have questions regarding your Nobsound T8 PRO preamplifier that are not addressed in this manual, please contact the seller or Nobsound customer support for assistance. Provide your product model number and a detailed description of the issue for efficient support.