Di 3.5R - Loudspeaker DEFINITIVE TECHNOLOGY - Free user manual and instructions
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| Product Type | Bookshelf Loudspeaker |
| Brand | Definitive Technology |
| Model | Di 3.5R |
| Driver Configuration | 2-way |
| Tweeter | 1-inch aluminum dome |
| Mid/Bass Driver | 5.25-inch polypropylene cone |
| Frequency Response | 45 Hz - 25 kHz |
| Impedance | 8 ohms |
| Sensitivity | 89 dB (2.83V/1m) |
| Recommended Amplifier Power | 20 - 150 watts |
| Dimensions (H x W x D) | 12.5 x 7.5 x 8.5 inches (318 x 191 x 216 mm) |
| Weight | 11.5 lb (5.2 kg) |
| Enclosure Type | Bass reflex with rear port |
| Grille | Magnetic cloth grille |
| Binding Posts | 5-way gold-plated |
| Placement | Bookshelf or stand |
| Power | Passive (requires external amplifier) |
| Cleaning Instructions | Wipe with a soft, dry cloth. Do not use liquids or abrasives. |
| Safety Precautions | Place on a stable surface; ensure proper ventilation around rear port. |
| Spare Parts & Repairability | Contact Definitive Technology for service. Drivers are replaceable. |
Frequently Asked Questions - Di 3.5R DEFINITIVE TECHNOLOGY
How do I connect the Di 3.5R to my amplifier?
Use speaker wire with banana plugs or bare wire. Connect to the 5-way binding posts on the rear. Ensure proper polarity (+/ -).
What is the recommended placement for best sound?
Place speakers at ear level when seated, at least 6-12 inches from the rear wall for optimal bass response. Angle them slightly toward the listening position.
Can I use the Di 3.5R as a center channel speaker?
Yes, you can use a single Di 3.5R as a center channel if your receiver supports it. Place it horizontally on a shelf or stand.
Does this speaker require a subwoofer?
The Di 3.5R provides decent bass down to 45 Hz, but for deeper low-end, adding a subwoofer is recommended for home theater or music with heavy bass.
How do I clean the Di 3.5R speakers?
Use a soft, dry cloth to wipe the cabinet and grille. Do not use any cleaning solutions, water, or abrasive materials.
Can I mount the Di 3.5R on the wall?
The Di 3.5R is not designed for wall mounting. It is a bookshelf speaker intended for shelf or stand placement. Use a stable surface.
What impedance does the Di 3.5R have?
The speaker has a nominal impedance of 8 ohms, making it compatible with most amplifiers and receivers.
Why is there no sound from one speaker?
Check connections: ensure speaker wire is firmly inserted into both the speaker and amplifier. Also verify that the amplifier's channels are not muted or set to mono.
Can I bi-wire the Di 3.5R?
The Di 3.5R does not support bi-wiring as it has a single pair of binding posts. A single cable connection is sufficient.
What is the warranty period for Definitive Technology speakers?
Definitive Technology typically offers a 5-year limited warranty for loudspeakers. Check your purchase receipt for details.
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USER MANUAL Di 3.5R DEFINITIVE TECHNOLOGY
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Product information
Brand : DEFINITIVE TECHNOLOGY
Model : Di 3.5R
Category : Loudspeaker