EVO 4.S - Speaker Wharfedale - Free user manual and instructions
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| Product Type | Active Subwoofer |
| Brand | Wharfedale |
| Model | EVO 4.S |
| Speaker Type | Subwoofer |
| Amplifier Type | Built-in Class D |
| Power Output (RMS) | 200 W |
| Frequency Response | 30 Hz - 120 Hz |
| Driver Size | 10 inches (250 mm) |
| Driver Type | Paper cone with rubber surround |
| Enclosure Type | Bass reflex with rear port |
| Crossover Frequency | Adjustable 40-120 Hz |
| Inputs | Line-level RCA, LFE RCA, Speaker-level terminals |
| Controls | Volume, Phase (0/180°), Crossover, Auto standby switch |
| Dimensions (H x W x D) | 410 x 320 x 400 mm |
| Weight | 16.5 kg |
| Finish | Black Ash, White Ash, Walnut |
| Power Supply | AC 230V, 50/60Hz |
| Standby Power Consumption | < 0.5 W |
| Protection | Overload, short circuit, thermal shutdown |
| Cleaning Instructions | Wipe with a soft, dry cloth. Do not use liquid cleaners. |
| Safety Warning | Do not expose to moisture or extreme temperatures. Keep ventilation slots clear. |
| Repairability | Contact authorized Wharfedale service center for repairs. Do not attempt to open. |
Frequently Asked Questions - EVO 4.S Wharfedale
How do I connect the EVO 4.S subwoofer to my AV receiver?
Use a single RCA cable from the subwoofer output on your AV receiver to the LFE input on the subwoofer. Alternatively, use speaker-level connections if your receiver lacks a dedicated sub out.
What is the recommended placement for the subwoofer?
Place the subwoofer in a corner or along a wall for best bass reinforcement. Avoid placing it in the center of the room. Experiment with position to minimize standing waves.
How do I set the crossover frequency?
Set the crossover knob to match your main speakers' lower limit (typically 80 Hz). For LFE input, set the crossover to maximum (120 Hz) and let the receiver handle the filtering.
What does the phase switch do and how should I set it?
The phase switch (0° or 180°) adjusts timing between subwoofer and main speakers. Listen to music and select the setting that produces louder, fuller bass at your listening position. Typically, 0° works for front placement and 180° for rear.
Why does my subwoofer not turn on automatically?
Check that the power cable is firmly connected and the mains switch is on. Ensure the auto standby switch is set to 'ON' (or 'Auto'). Some subwoofers require a minimum signal level to wake; if signal is weak, set auto standby to 'OFF'.
Can I use the EVO 4.S in a stereo system without a subwoofer output?
Yes, use the speaker-level inputs: connect the amplifier's speaker terminals to the subwoofer's input terminals, then from the subwoofer's output terminals to your main speakers. This allows the subwoofer to blend with the speakers.
How do I clean the subwoofer cabinet?
Dust the cabinet with a soft, dry microfiber cloth. Do not use any liquid cleaners or abrasive materials. Avoid touching the driver cone.
What should I do if the subwoofer makes humming noise?
Ensure all audio cables are properly shielded and not running parallel to power cables. Try a different power outlet, possibly on a different circuit. If hum persists, a ground loop isolator may be needed.
What is the warranty period for the EVO 4.S?
Wharfedale typically offers a 2-year warranty for passive speakers and 1 year for active electronics. Check your local dealer or documentation for exact terms.
Can I repair the subwoofer myself?
No, the subwoofer contains high-voltage components and should only be opened by qualified personnel. Contact Wharfedale authorized service for any repairs. Attempted self-repair voids warranty.
User questions about EVO 4.S Wharfedale
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USER MANUAL EVO 4.S Wharfedale
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Product information
Brand : Wharfedale
Model : EVO 4.S
Category : Speaker