SA-W541 - Pregnant SONY - Free user manual and instructions

Product Type	Powered Subwoofer
Brand	Sony
Model	SA-W541
Amplifier Power Output	150 W (RMS)
Speaker Driver	10-inch (25 cm) cone type
Impedance	8 ohms
Frequency Response	28 Hz – 200 Hz
Crossover Frequency	50 Hz – 200 Hz (variable)
Phase Control	0° / 180° switch
Input Connectors	Line level (RCA), speaker level
Power Supply	AC 120 V, 60 Hz (or 220-240 V, 50/60 Hz depending on region)
Power Consumption	200 W (max), < 0.5 W standby
Dimensions (W x H x D)	350 x 380 x 420 mm (13.8 x 15.0 x 16.5 in)
Weight	12 kg (26.5 lb)
Material	MDF cabinet with black vinyl finish
Protection Features	Overload, short circuit, thermal protection
Auto Standby	Yes (auto power off after approx. 10 minutes of no signal)
Cleaning	Wipe with a soft, dry cloth. Do not use solvents or abrasive cleaners.
Spare Parts Availability	Contact Sony service center for replacement drivers, amplifiers, and other components.
Repairability	Designed for professional repair; user-serviceable parts include fuse and power cord.

Frequently Asked Questions - SA-W541 SONY

How do I connect the SA-W541 to my AV receiver?

Use an RCA cable to connect the subwoofer output on your receiver to the LINE IN jack on the subwoofer. Alternatively, you can connect using speaker level inputs if your receiver lacks a dedicated sub out.

What is the recommended placement for optimal bass?

Place the subwoofer on the floor near a wall or corner for enhanced bass. Avoid placing it in the center of the room. Keep it at least 10 cm (4 inches) away from walls for ventilation.

Why is my subwoofer not producing sound?

Check that the power cable is securely plugged in, the power switch is on, and the volume control is turned up. Ensure the input cable is connected firmly and your receiver is sending a signal to the subwoofer.

How do I adjust the crossover frequency?

Use the CROSSOVER FREQUENCY dial on the back panel. Set it to match your main speakers' low-frequency limit (typically 80 Hz for THX setups). The subwoofer will only reproduce frequencies below this setting.

What does the phase switch do?

The PHASE switch (0° or 180°) adjusts timing between the subwoofer and main speakers. Set it to the position where bass sounds fullest at your listening position. Try both settings and choose the louder, more integrated sound.

Can I use this subwoofer with a stereo amplifier?

Yes, if your stereo amplifier has a pre-out or subwoofer output. If not, you can use the speaker level inputs by connecting the amplifier's speaker terminals to the subwoofer's speaker level terminals.

How do I clean the subwoofer cabinet?

Unplug the subwoofer and wipe the cabinet with a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water. Do not use alcohol, benzene, or abrasive cleaners.

What should I do if the subwoofer stops working due to overheating?

The thermal protection will automatically shut off the subwoofer if it overheats. Turn off the unit, let it cool for at least 30 minutes, and ensure proper ventilation. Reduce the volume level before restarting.

Is it safe to use the subwoofer with a voltage converter?

The SA-W541 is designed for a specific voltage (e.g., 120 V or 220-240 V). Check the label on the back. Using a step-up/step-down converter is possible but ensure the converter's power rating exceeds the subwoofer's consumption (200 W).

Where can I find replacement parts or service?

Contact an authorized Sony service center for genuine spare parts like drivers or amplifier modules. The fuse is user-replaceable; check the manual for the correct type and rating.

USER MANUAL SA-W541 SONY

Operating Instructions

Warning

To prevent fire or shock hazard, do not expose the unit to rain or moisture.

For the connections and the operations of this unit, please see the "Operating Instruction" of HCD-441 or HCD-541.

This symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

* The graphical symbols are on the rear enclosure.

Owner's Record

The model and serial number is located at the rear. Record this serial number in the space provided below. Refer to these numbers whenever you call upon your Sony dealer regarding this product.

SA-W441/SA-W442

Serial No. ____

SA-W541/SA-W542

Serial No. ____

Precautions

On safety

• Operate the unit only on 120 V AC, 60 Hz.
• Should any solid object or liquid fall into the unit, unplug it and have it checked by qualified personnel before operating it any further.
• Unplug the unit from the wall outlet if it is not to be used for an extended period of time. To disconnect the cord, pull it out by grasping the plug. Never pull the cord itself.

On installation

• Place the unit on a level surface.
• Do not install the unit in a location near heat sources such as radiators or air ducts, or in a place subject to direct sunlight, excessive dust, mechanical vibration or shock.
• Good air circulation is essential to prevent internal heat buildup in the unit. Place the unit in a location with adequate air circulation. Do not cover the ventilation holes on the rear panel.

On cleaning the cabinet

Clean the cabinet, panel and controls with a soft cloth lightly moistened with mild detergent solution. Do not use any type of abrasive pad, scouring powder or solvent such as alcohol or benzine.

On repacking

Do not throw away the carton and the packing material. It makes an ideal container to transport the unit in.

If you have any question or problem concerning your unit, please consult your nearest Sony dealer.

For detailed precautions, see the leaflet "IMPORTANT SAFEGUARDS".

Specifications

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

With 8-ohm loads, both channels driven, from 70 - 20,000 Hz; rated 100 watts per channel minimum RMS power, with less than 0.9% total harmonic distortion from 250 milliwatts to rated output.

Amplifier section

Overall output

SA-W441/W442: 120 W + 120 W (front, at 1 kHz, 8 ohms) 40 W (super woofer, at 40 Hz, 4 ohms)
SA-W541/W542: 120 W + 120 W (front, at rear/center off at 1 kHz, 8 ohms) 20 W + 20 W (rear, at center off at 1 kHz, 8 ohms) 40 W (center, at rear off at 1 kHz, 6 ohms) 40 W (super woofer, at rear/center off at 40 Hz 4 ohms)

Harmonic distortion

SA-W441/W442: Less than 0.9 % (at 1 kHz, 8 ohms loads, front: 120 W + 120 W, super woofer off)
SA-W541/W542: Less than 0.9 % (at 1 kHz, 8 ohms loads, front: 120 W + 120 W, rear/center/super woofer.off)

Output

FRONT SPEAKERS:

Accept speakers of 8 - 16 ohms

REAR SPEAKERS:

(SA-W541/W542)

Accept speakers of 8 - 16 ohms

CENTER SPEAKER:

(SA-W541/W542)

Accept speaker of 6 - 16 ohms

HEADPHONES:

Accepts low and high impedance Headphones

Speaker section

Type

Active super woofer (magnetically shielded design)

Speaker unit

Woofer: 20 cm (8 inches) cone type

Reproduction frequency range

25 Hz to 150 Hz

General

Power requirements

120 V AC, 60 Hz

Power consumption

SA-W441/W442: 230 W

SA-W541/W542: 280 W

Dimensions
Approx. 500 x 475 x 475 mm (w/h/d)
(19^3/4× 18^3/4× 18^3/_4 inches)
(including projecting parts and controls)

Mass

SA-W441/W442: Approx. 30.3 kg (66 lb 13 oz)

SA-W541/W542: Approx. 31.0 kg (68 lb 6 oz)