1. Introducció
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your JBL Professional 305PMkII 5-Inch Powered Studio Monitor. Designed for accurate audio reproduction in professional, project, and home studio environments, the 305PMkII delivers detailed sound, precise imaging, and a wide sweet spot. Please read this manual thoroughly to ensure optimal performance and longevity of your monitor.
2. Informació important de seguretat
- Font d'alimentació: Connect the monitor only to the specified power supply (100-240V, 50/60Hz).
- Ventilació: Assegureu-vos que hi hagi una ventilació adequada al voltant del monitor. No bloquegeu les obertures de ventilació.
- Humitat: Do not expose the monitor to rain or moisture. Avoid placing objects filled with liquids on the monitor.
- Calor: Keep the monitor away from heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
- Neteja: Disconnect the power cord before cleaning. Use a dry cloth for cleaning.
- Manteniment: No intenteu atendre aquest producte vosaltres mateixos. Consulteu tots els serveis a personal de servei qualificat.
3. Contingut del paquet
The JBL Professional 305PMkII package includes the following items:
- JBL 305P MkII Studio Monitor (x1)
- Cable d'alimentació (x1)
- Quick Setup Guide (x1)
- Peel-off Rubber Pads (x4)

Imatge: Frontal view of the JBL 305PMkII Studio Monitor.
4. Configuració
4.1. Col·locació
Proper placement of your JBL 305PMkII monitors is crucial for accurate sound reproduction. Position the monitors to form an equilateral triangle with your listening position, with the tweeters at ear level. The Image Control Waveguide ensures a wide sweet spot, but optimal positioning enhances detail and stereo imaging.
- Place monitors on a stable surface, ideally on isolation pads (included) to minimize vibrations.
- Maintain a distance from walls and corners to reduce bass buildup. If placement near boundaries is unavoidable, use the Boundary EQ switch on the rear panel.

Imatge: Frontal i lateral view of the JBL 305PMkII, illustrating its compact design suitable for various studio setups.
4.2. Connexions
The 305PMkII offers flexible connectivity options for integration into your audio setup.
- Connexió d'alimentació: Connect the supplied power cord to the AC input on the rear panel of the monitor and then to a suitable power outlet.
- Entrada d'àudio:
- Entrada XLR equilibrada: For professional audio interfaces and mixers.
- Entrada TRS balancejada de 1/4": Also for professional audio equipment.

Image: Rear panel of the JBL 305PMkII, showing the balanced XLR and 1/4" TRS inputs, power AC inlet, and control switches.
Video: An official JBL Professional video providing an overview of the studio monitor, highlighting its features and design.
5. Instruccions de funcionament
5.1. Encendre/apagar
Locate the power switch on the rear panel of the monitor. Flip the switch to the 'ON' position to power on the monitor. Flip it to 'OFF' to power down.
5.2. Ajust dels controls
The rear panel features several controls to fine-tune the monitor's response to your environment and preferences.
- Input Sensitivity Switch (+4dBu / -10dBV): This switch adjusts the input sensitivity to match the output level of your source device. Set to +4dBu for professional line-level equipment or -10dBV for consumer-level devices.
- Control de volum: Use the rotary knob to adjust the overall output volume of the monitor.
- Boundary EQ Switch: This switch compensates for bass response when monitors are placed near walls or in corners. Select the appropriate setting (-3dB, -1.5dB, 0dB) to reduce excessive low-frequency buildup.
- HF Trim Switch: Adjusts the high-frequency output to tailor the sound to your room acoustics or personal preference. Settings include +2dB, 0dB, and -2dB.

Imatge: Detallada view of the rear panel controls, including Input Sensitivity, Volume, Boundary EQ, and HF Trim switches.
Video: A seller-provided video demonstrating the features and controls of the JBL 305PMkII, including input options and EQ adjustments.
6. Manteniment
- Neteja: Use a soft, dry cloth to clean the exterior of the monitor. Avoid using abrasive cleaners, solvents, or waxes.
- Pols: Regularly dust the speaker cones and tweeter with a soft brush or compressed air to prevent buildup.
- Emmagatzematge: If storing the monitors for an extended period, ensure they are in a dry, temperature-controlled environment and protected from dust.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Sense so |
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| So distorsionat |
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| Excessive Bass |
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| Harsh High Frequencies |
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8. Especificacions
| Característica | Detall |
|---|---|
| Nom del model | 305P MkII |
| Tipus d'altaveu | Monitor |
| Diàmetre del woofer | 5 polzades |
| Diàmetre del Tweeter | 1 polzades |
| Resposta de freqüència | 49 Hz - 20 kHz |
| AmpPoder més viu | 82 Watts (41W LF / 41W HF) |
| SPL màxim | 108 dB |
| Sensibilitat d'entrada | +4dBu / -10dBV selectable |
| Entrades | Balanced XLR, Balanced 1/4" TRS |
| Dimensions (A x A x P) | 11.75" x 7.3" x 9.9" (298 mm x 185 mm x 251 mm) |
| Pes de l'article | 10.12 lliures (4.59 kg) |
| Font d'alimentació | Corded Electric (100-240V, 50/60Hz) |
| Material | Acrilonitril butadiè estirè (ABS) |
| Tipus de garantia | 5 anys |

Image: Official specifications sheet for the JBL 305PMkII, detailing technical data and features.
9. Garantia i Suport
The JBL Professional 305PMkII comes with a 5 any de garantia. For warranty claims, technical support, or additional product information, please visit the official JBL Professional weblloc web o poseu-vos en contacte amb el seu servei d'atenció al client. Conserveu el rebut de compra com a comprovant de compra.
For further assistance, please refer to the official JBL Professional weblloc: www.jblpro.com





