Synthesis HDI-4500 - Pregnant JBL - Free user manual and instructions
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| Product Type | Floor-standing Loudspeaker |
| Model | Synthesis HDI-4500 |
| Brand | JBL |
| Series | Synthesis |
| Driver Configuration | 3-way bass reflex |
| Woofer | One 15-inch (380mm) Pure Cellulose Cone |
| Midrange | One 4-inch (100mm) Polymer-coated Cone |
| Tweeter | One 1-inch (25mm) Titanium Dome |
| Frequency Response | 30 Hz - 40 kHz (±3 dB) |
| Sensitivity | 92 dB (2.83V @ 1m) |
| Impedance | 8 ohms (nominal) |
| Recommended Amplifier Power | 50 - 500 Watts RMS |
| Crossover Frequency | 800 Hz, 2.5 kHz |
| Enclosure Type | Bass reflex with flared port |
| Dimensions (H x W x D) | 48.5 x 18.5 x 22.5 inches (1232 x 470 x 572 mm) |
| Weight | 135 lbs (61.2 kg) each |
| Finish | High-gloss black or walnut veneer |
| Inputs | Dual binding posts for bi-amping/bi-wiring |
| Included Accessories | Grille, floor spikes, jumpers |
| Warranty | 5 years (limited) |
| Recommended Placement | At least 12 inches from back wall, towered inward |
| Cleaning Instructions | Wipe with dry cloth; avoid solvents |
| Safety Features | Non-skid feet, stable base |
Frequently Asked Questions - Synthesis HDI-4500 JBL
What is the recommended amplifier power for the HDI-4500?
The recommended amplifier power is between 50 and 500 Watts RMS per channel. Ensure your amplifier is stable at 8 ohms.
Can I bi-amp or bi-wire the HDI-4500?
Yes, the HDI-4500 features dual binding posts that allow bi-amping or bi-wiring. Remove the jumper straps to separate the low and high frequency sections.
How far from the wall should I place the speakers?
For optimal bass response, place the speakers at least 12 inches (30 cm) away from the back wall. Experiment with positioning for best soundstage.
What is the frequency response of the HDI-4500?
The frequency response is 30 Hz to 40 kHz with a tolerance of ±3 dB, covering deep bass to high-frequency detail.
How do I clean the speaker cabinet?
Use a soft, dry cloth to gently wipe the cabinet. Avoid using any solvents, polishes, or abrasive cleaners. For the grille, vacuum gently with a brush attachment.
Are the drivers protected from overload?
The HDI-4500 includes a protection circuit that limits power to the drivers in extreme conditions. However, avoid sustained clipping from the amplifier.
Can I use the HDI-4500 in a home theater setup?
Absolutely. The HDI-4500 is designed for both stereo and multi-channel systems. Pair it with other JBL Synthesis speakers for a cohesive home theater experience.
What is the recommended break-in period?
A break-in period of 20-50 hours at moderate volume is recommended to allow the suspension components to loosen and achieve optimal performance.
Does the HDI-4500 come with a grille?
Yes, each speaker includes a removable fabric grille that attaches magnetically. You can use it with or without the grille.
What is the warranty coverage?
JBL provides a limited 5-year warranty for the HDI-4500 covering defects in materials and workmanship. Keep your receipt for proof of purchase.
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