MODEL RECOMMENDED AMPLIFIER POWER
PER CHANNEL WITH BUILT-IN LIMITING
RECOMMENDED SLA AMPLIFIER
SLX1008 100W @ 8Ω
SLX 1010 200W @ 8Ω
SLX 1120 400W @ 8Ω SLA2004
SLX 1150 600W @ 8Ω SLA2006
SLX 1152 1200W @ 4Ω SLA2008
SLX 2050 400W @ 8Ω SLA2013
SLX 2080 800W @ 8Ω SLA2013
SLX 2180 1300W @ 8Ω SLA2013
SLX 2182 2600W @ 4Ω SLA2015
MODEL RECOMMENDED SUBSONIC FILTER
SLX 1008 60Hz,24dB/octave
SLX 1010 55Hz,24dB/octave
SLX 1120 50Hz,24dB/octave
SLX 1150 45Hz,24dB/octave
SLX 1152 40Hz,24dB/octave
MODEL RECOMMENDED SUBSONIC FILTER
SLX 2050 35Hz,24dB/octave
SLX 2080 35Hz,24dB/octave
SLX 2180 35Hz,24dB/octave
SLX 2182 35Hz,24dB/octave
WHY USE A SUBSONIC FILTER?
For vented-design loudspeakers, if frequencies below the tuning frequency of the cabinet are fed to the
speaker, it will put unnecessary stress on the woofer. The woofer cone excursion will increase and might
become uncontrolled. However, these frequencies do not produce any acoustic output from the speaker.
Having a subsonic filter in the system will help roll off these frequencies and protect the drivers from getting
damaged, at the same time reducing the load on the amplifier and preventing wastage of electrical power.
For the SLX2180 and SLX2182 subwoofers it is recommended to use the SLX SC1 which is a subsonic filter
cum low-pass filter with gain, frequency and phase controls.
RECOMMENDED AMPLIFIER POWER
The recommended SLA series amplifiers for driving the different SLX speakers are shown in the chart below,
along with the power output. Please note that the SLA amplifiers have built-in limiting against clipping and
overdrive, which would otherwise damage the loudspeakers if operated in clipping for long durations. If you
are using other amplifiers without built-in limiting, choose an RMS power rating which is 1.5 times the rated
AES power of the SLX series, that is, 1.5 times the recommended RMS amplifier power in the chart below.
Also, while using such an amplifier, ensure that the clip LED lights up only occasionally during peaks in the
signal. This way, you can avoid distortion and damage to the loudspeakers by overdrive, at the same time, be
able to drive the loudspeakers to its maximum rated power.
SLX SERIES page 2
REC. AMPLIFIER POWER/ SUBSONIC FILTER
