EAW SB730 Owner's Manual

Also see for KF730P: Specification sheet

Contents

RD0169 (A) KF730 & SB730 OWNER’S MANUAL Page 11 of 28The following tables list the rms voltage limits for the KF730 and SB730. Because of their higherimpedance design, multiple KF730s and SB730s can be powered from single amplifier channels.NOTE: The rms Voltage Limit listed for each sub-system (LF, MF/HF, SUB 1/2, or SUB 1 andSUB 2) is the same for any enclosure quantity. The wattages are calculated using the VoltageLimits and the overall nominal impedance for the each listed quantity of KF730 and SB730loudspeakers.KF730 Qty Nominal Z LF MF/HF1 16 700 W 350 W2 8 1400 W 700 W3 5.3 2100 W 1050 W4 4 2800 W 1400 W5 3.2 3500 W 1750 W6 2.7 4200 W 2100 W7 2.3 4900 W 2450 W8 2 5600 W 2800 Wrms Voltage Limit: 106 V 75 VSB730 Qty Nominal Z SUB 1/2 parallel1 4 1200 W2 2 2400 Wrms Voltage Limit: 69 VSB730 Qty Nominal Z SUB 1 SUB 11 8 600 W 600 W2 4 1200 W 1200 W3 2.7 1800 W 1800 W4 2 2400 W 2400 Wrms Voltage Limit: 69 V 69 VCAUTION: The rms voltage limits listed above are related to the thermal limits determined fromEAW’s standard power test. In this test, transducers are “exercised” to a point of damage orfailure. The test signal has a 6 dB crest factor (peak to average ratio). A maximum continuousvoltage limit for the loudspeaker is then determined based on the test results and on thetransducer’s application in the loudspeaker. The powers listed in the table are calculated as thesquare of the rms voltage limit divided by the sub-system’s nominal impedance (Z) in ohms.5.7.2 Selecting an Appropriate Amplifier SizeThe wattages listed in the above charts are intended primarily as points of comparison with thepower ratings of other loudspeakers. For this purpose, each wattage listed should be consideredas a +/-1 dB range = 0.8 to 1.25 times the wattage listed. For example, 1400 W should beconsidered as a range from approximately 1100 W to 1800 W.In many applications, the wattages listed will NOT correspond to the best amplifier sizes foroptimizing loudspeaker reliability and performance. Proper amplifier selection requires aconsidered analysis for the particular application. Amplifiers should be sized according to both thesound levels required and the type of audio signals that will be reproduced. If you are unsure ofhow to determine these parameters, consult a qualified professional or contact EAW’s ApplicationSupport Group.