685 S2 - Pregnant B&W - Free user manual and instructions
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| Product type | Bookshelf speaker |
| Brand | B&W |
| Model | 685 S2 |
| Dimensions (H x W x D) | 345 x 200 x 310 mm |
| Weight | 7.5 kg (each) |
| Nominal impedance | 8 ohms |
| Sensitivity | 88 dB (2.83 V, 1 m) |
| Frequency response (-6 dB) | 40 Hz – 50 kHz |
| Crossover frequency | 4 kHz |
| Recommended amplifier power | 25 W – 120 W into 8 ohms |
| Drivers | 1 x 25 mm Nautilus™ aluminum dome tweeter, 1 x 165 mm woven glass fiber bass/midrange |
| Enclosure type | Bass-reflex with Flowport™ |
| Available finishes | Walnut, Rosewood, Satin White |
| Maintenance | Dust with a soft, dry cloth. Do not use abrasive products. |
| Safety | Do not expose to moisture or splashes. Do not obstruct the bass-reflex port. |
| Repairability | Spare parts available from B&W after-sales service. |
Frequently Asked Questions - 685 S2 B&W
What amplifier power is recommended for the B&W 685 S2 speakers?
The recommended power is 25 to 120 watts into 8 ohms. An amplifier of 50 to 80 watts will be perfect for home listening.
Can I use the 685 S2 as surround speakers in a home theater system?
Yes, their bookshelf format makes them suitable for surround use, but they also excel in stereo for music listening.
Should I bi-wire or bi-amp the B&W 685 S2?
These speakers are equipped with terminals compatible with bi-wiring/bi-amping. You can remove the bridges to use two cables or two amplifiers, but this is not necessary for proper operation.
How to clean the speaker grilles?
Carefully remove the grille and dust it with a vacuum cleaner fitted with a soft brush. For stains, use a slightly damp cloth and let it air dry.
What is the break-in period required for the B&W 685 S2?
A break-in period of about 50 to 100 hours of listening at moderate volume is recommended so that the speaker suspensions relax and achieve optimal performance.
How far from walls should the speakers be placed?
For good bass reproduction, place the speakers at least 20 to 30 cm from the rear wall and side walls. Avoid corners.
Are the B&W 685 S2 compatible with a subwoofer?
Yes, they can be paired with a subwoofer to reinforce frequencies below 40 Hz. Make sure to set the crossover around 80 Hz for seamless integration.
Can I place the speakers on a shelf or in a bookcase?
Yes, but ensure they are stable and at the front of the shelf to avoid reflections. If possible, use isolating feet or spikes to decouple vibrations.
What speaker cable gauge should I use?
For lengths under 5 meters, a cable with a cross-section of 1.5 to 2.5 mm² is sufficient. For longer lengths, choose 2.5 mm² or more.
How to improve the stability of the speakers on furniture?
Use the supplied spikes or rubber feet to decouple the speakers from the support. For maximum stability, you can also place them on sand-filled floor stands.
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