Zachry DSW-500N User manual

Brand: Zachry

Model: DSW-500N

Category: Musical Instrument Amplifier

Type: User manual

Zachry DSW-500N is a 500-Watt subwoofer amplifier that has been designed and built to deliver years of high-quality sound reproduction. It is perfect for both home stereo and home theater systems. It features RCA and balanced level inputs for connection to any system, full frequency balanced level outputs, soft-clip circuitry for clean output even with demanding program material, and a full complement of protection circuits for extreme reliability.

500 Watt Subwoofer

Amplifier

Model: DSW-500N

User Manual

Zachry-audio.com

Thank you for purchasing the DSW-500N Subwoofer Amplifier. It has been designed and built to provide years of

high quality sound reproduction, and is ideal for use in both home stereo and home theatre systems. The

amplifier has been engineered to include features like a choice of high or low level audio connections selectable

crossover frequency, comprehensive internal production against shorted speaker loads, thermal faults, and

overload conditions.

Features:

• RCA and balanced level inputs for connection to any system

• Full frequency balanced level outputs

• Soft-clip circuitry provides clean output even with demanding program material

• Full complement of protection circuits for extreme reliability

• Reverse phase switch for best integration with satellites

• Bypass gives fully frequency to the inbuilt amplifier

• Switchable stereo-mono, HPF- LPF- and subsonic filters

• Variable frequency 4

order low-pass crossover for a clean transition to main speakers

• Advanced soft clip circuitry improves headroom and protect connected speakers

• Switchable 115/230V input voltage

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1.) Low-Level inputs (Left/Right)

RCA- and balanced XLR style jacks what will accept standard line level inputs from a pre-amp level source. They

will accept a stereo signal and internally combine it into mono. Both left and right input jacks must be

connected to the source in order to drive the amplifier to full output.

2.) Low-Level outputs (Left/Right)

This balanced XLR output allows the low level input signal to be daisy chained through the internal preamps to

other amplifiers or powered satellites with no alternation (EQ) to the original signal.

3.) Level

This control will match the amplifier’s input sensitivity to the output of the pre-amp source. If the source has a

variable control, we recommend that the user spend a moment or two determining the best balance between

the two controls. When a balance is found between low noise, linear level control, and sufficient level to drive

the amp to the required output, the level knob can be considered to be the “volume control” for the

subwoofer or full range system.

4.) Bypass

This two position (ON or OFF) switch gives in ON mode full frequency to the amp which can be used as a full

range amplifier (subsonic- and phase switch can still be used).

In OFF mode will the signal supply the sweep control and the amp is suitable for subwoofer system.

5.) HPF

This two position (ON or OFF) switch gives in ON mode a slight decreasing of the treble from approx 200 Hz and

up (only in bypass ON mode).

6.) Sweep

This control works only in bypass OFF mode and is used to establish the highest frequency that the subwoofer

will reproduce and has a range between 30 to 200Hz with slop of 24 dB per octave. If you are using the system

for music and your main speakers have good bass capability, you could set the control to a fairly low value at

40, 60, or even 100 Hz. If the main speakers are smaller or do not have much bass output, set the control

higher. Experiment with the amount of “overlap” that you experience when all speakers are playing in the

same range. This can be helpful when integrating the subwoofer with the rest of the system and with the room.

7.) LPF

This two position (ON or OFF) switch gives in ON mode a slight decreasing of the bass from approx 40 Hz and

down. It is useful to remove the extremely low disturbing frequencies (only in bypass ON mode).

8.) Phase

This two position (NOR = 0° and REV = 180° phase) switch helps to compensate for different in the acoustical

and electrical characteristics between the subwoofer or full range system and the main system speakers. The

relative locations of speaker in the system can cause significant disturbances in speaker in the system due to

time delay issues, or the destructive phase interferences that can occur at certain frequencies. The use of this

switch in conjunction with altering the location the location of the subwoofer or full range speaker can have a

dramatic effect on system integration. The “NOR” setting would be considered the normal or default setting,

but be sure to experiment during system set-up. This feature works regardless of the bypass mode.

9.) Subsonic

This four position (OFF, 20, 35 and 50 Hz) switch is very useful to eliminate disturbing low frequencies. The best

is to experiment for best results. This feature works regardless of the bypass mode.

10.) Stereo-Mono

This two position (Stereo-Mono) switch gives in STEREO mode +3 dB and in MONO mode can the amp only be

supplied by the left inputs.

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11.) Power input, Fuse Sled and voltage Switch

Connect the supplied standard IEC AC power cable here. Be sure to confirm and install the properly rated fuse

when replacing the fuse or changing the operation voltage. Slide to change the operation voltage from 115 to

230 Volts.

12.) Power

Switches on the DSW-500N

Note: The power led is normally green. When change to red is the limiter protection activated.

NOTES ABOUT HUM

While the DSW-500N has designed to minimize the possibility of hum in the subwoofer or full range system, it

still possible that a hum will occur in rare circumstances. Its safety grounding can create a path for small

amounts of 50 to 60 Hz (depending of the frequencies in the power jackets) energy to travel trough the line-

level audio system. To reduce hum, all connections can be connected to a single grounded outlet.

SPECIFICATIONS:

Rated Power Output: 300 watts RMS into 8 ohms @ 0.1% THD

500 watts RMS into 4 ohms @ 1.0% THD

Signal to Noise Ratio: 90 dB A-weighted

Input Impedance: 12K ohms

Sweep Control: 30 – 200 Hz, 24 dB per octave

Subsonic Filters: OFF, 20, 35, 50 Hz

Other Controls: Phase 0° (NOR) or 180° (REV), LPF-Filter

HPF-Filter, Stereo-Mono- and Bypass switch

Dimensions: 304 mm W x 304 mm H x 135 mm D

Power Requirements: 115/230 VAC, 50/60 Hz, 800 W

Fuse 8 AT, 250V (115VAC)

Fuse 4AT, 250V (230VAC)

Weight: 8, 9 kg

Important Safety Instructions

To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer serving to qualified

personnel. To reduce the risk of fire and shock do not expose unit to rain or moisture. The unit should be connected an

earth grounded AC electrical socket. The unit should be operated in a well ventilated area. Minimum clearance is 5 cm from

the ventilation openings.

Note: Before starting, make sure that the voltage selector is in the correct position depending on the power outlet.

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Zachry DSW-500N User manual

Brand: Zachry

Model: DSW-500N

Category: Musical Instrument Amplifier

Type: User manual

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Zachry DSW-500N User manual

Zachry DSW-500N User manual

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