Polk Audio owner manual SPECIFICATIONS PSW1200

SPECIFICATIONS

PSW1200

Driver Complement

2-12" woofers

Continuous average power*:

230 watts into 8 ohms @1% THD over power bandwidth of 30-120Hz

Dynamic Power Rating* -

350 watts into 8 Ohms

System Acoustic Efficiency -

90db from 1 watt at 1 meter

Calculated Maximum Output -

115db at 1 meter

Enclosure Type

Direct radiating, vented

Port Type

Power Port

Frequency Response: Overall /- 3db Limits 20Hz -140Hz /22Hz -125Hz

Lowpass Crossover Frequency

Adjustable 40Hz -120Hz

Phase Control

Variable 0˚ to 180˚

Inputs

Speaker and line level

Outputs

Speaker and line level

High Pass Filters Line Level Outputs:

Switchable 40Hz or 80Hz, 12db/octave

Speaker Outputs:

Switchable: Flat, 40Hz or 80Hz

Shipping Weight

110 lbs/ea (49.9 kg)

Dimensions

261⁄2"H x 183⁄4"W x 233⁄4"D 67.3cmH x 47.6cmW x 60.3cmD

* About Power Ratings

When making comparisons between product specifications it helps to under- stand what they mean, particularly with amplifier power ratings. The Federal Trade Commission has recently issued new regulations regarding the power ratings of all amplifiers including self-powered speakers. Polk Audio supports this effort to standardize power testing methods in order to provide consumers with a “level playing field” basis for comparison. Make sure the basis for the power rating is clearly stated before comparing it to another product’s specification.

The FTC rating is based on the continuous power output of the amplifier. However, music and movies are not continuous but are mainly composed of short bursts of sound. For this reason we also supply a “Dynamic Power” rating which measures the ability of the amplifier to produce power in short bursts similar to those found in music and movies. In our experience an amplifier with higher Dynamic Power out- put will play louder under most conditions regardless of the continuous power rating. Dynamic Power is typically greater than continuous average power although it is not uncommon for two amplifiers with identical FTC “Continuous Average” ratings to have very different Dynamic Power performance.

However, loudspeaker efficiency is by

far the most important factor in determin- ing how loud your system will play. Loudspeaker efficiency is usually given as the amount of sound produced by 1 watt at a distance of 1 meter. A medium efficiency loudspeaker rating would be around 87 dB from 1 watt at 1 meter. A highly efficient loudspeaker might be 90 dB. Each 3dB increase in efficiency doubles the sound output for a given power input. So a 100 watt, 90 dB self-powered speaker and a 200 watt 87 dB unit would produce the same sound output. For this reason we also specify the loudspeaker efficiency and calculated maximum sound output.

Polk Audio and the Consumer Electronics Manufacturer’s Association are currently engaged in an effort to set standards for specifying the actual acoustic output of self-powered speakers. If we are success- ful, consumers will be able to use these ratings to make more meaningful product comparisons and better purchasing decisions in the future.

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