Diamond 157 - Pregnant Wharfedale - Free user manual and instructions
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| Product Type | Bookshelf Speaker |
| Brand | Wharfedale |
| Model | Diamond 157 |
| Dimensions (H x W x D) | 300 mm x 190 mm x 280 mm |
| Weight (each) | 5.6 kg |
| Power Handling (RMS) | 50 W |
| Peak Power Handling | 100 W |
| Sensitivity | 88 dB (2.83 V/1m) |
| Frequency Response | 50 Hz - 20 kHz (±3 dB) |
| Impedance | 8 Ohms |
| Driver Configuration | 2-way |
| Tweeter | 25 mm soft dome |
| Woofer | 150 mm woven Kevlar cone |
| Crossover Frequency | 3.5 kHz |
| Enclosure Type | Bass reflex with rear port |
| Connection Type | Gold-plated binding posts (bi-wire capable) |
| Recommended Amplifier Power | 20 - 100 W |
| Finishes Available | Black, Walnut, White |
| Magnetic Shielding | Yes |
| Cleaning Instructions | Wipe with a soft, dry cloth |
| Safety Features | Non-skid rubber feet; stable base |
| Spare Parts Availability | Contact authorized service centers |
Frequently Asked Questions - Diamond 157 Wharfedale
What amplifier power is recommended for the Diamond 157?
The Wharfedale Diamond 157 is designed for amplifiers with a power output between 20 and 100 watts RMS per channel.
Can I bi-wire the Diamond 157 speakers?
Yes, the Diamond 157 features gold-plated binding posts that allow for bi-wiring or bi-amping by removing the metal jumpers.
What is the recommended placement for these bookshelf speakers?
Place the speakers on a stable surface or stands at ear level when seated. Keep them at least 20 cm from the rear wall to avoid boomy bass.
Do the Diamond 157 speakers require a break-in period?
It is recommended to allow 20-30 hours of playback at moderate volume for the drivers to reach optimal performance.
How do I clean the speaker cabinets?
Use a soft, dry cloth to gently wipe the surface. Avoid any liquid cleaners or abrasive materials.
Are the Diamond 157 speakers magnetically shielded?
Yes, they are magnetically shielded, so they can be placed near a TV or monitor without causing interference.
What is the impedance of the Diamond 157?
The impedance is 8 ohms, making them compatible with most stereo amplifiers and receivers.
Can I use these speakers in a home theater setup?
Yes, they work well as front, rear, or surround speakers. For a full system, pair with a Wharfedale center channel and subwoofer.
What type of speaker wire should I use?
Use high-quality speaker wire with a gauge of 16 AWG or thicker for runs up to 15 meters. Ensure proper polarity (+/-).
Where can I find spare parts or service?
Contact an authorized Wharfedale service center for genuine parts and repairs. Check the Wharfedale website for locations.
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