Mackie SRM 1550 Frequently Asked Questions

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FAQ FAQ

Is the power supply universal?

The SRM 1550 uses a standard 3 prong IEC cable.

What connections does the SRM 1550 have?

The SRM 1550 offers two XLR-F connections for inputs A and B. Each input has both a High Pass output

and Full Range output. All 4 output connections are male XLR.

What are the High Pass outputs used for?

The High-Pass outputs are perfect when using full range speakers with the SRM 1550. They send the

audio signal out after going through a filter that subtracts a determined amount of the low end. Then

your full range speakers can better reinforce the midrange and high frequencies while the SRM 1550

takes care of the rest.

With the SRM 1550, variable mode lets you choose the cutoff frequency you want to use to roll off the

lows to the High Pass outputs. There are also preset levels that will perfectly configure the SRM 1550

for use with either the SRM 350 or SRM 450.

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Frequently Asked Questions

Page 1 The SRM 1550 uses a standard 3 prong IEC cable. What connections does the SRM 1550 have? The SRM 1550 offers two XLR-F connections for inputs A and B. Each input has both a High Pass output and Full Range output. All 4 output connections are male XLR.
Page 2 Can I connect this to the speaker output of an amplifier? When setting up your SRM 1550 it is very important that you DO NOT connect it to the output of an amplifier. The inputs of the SRM 1550 are made for non-powered outputs such as the main or aux outputs from a mixer.
Page 3 If a bal- anced connection to the SRM 1550 is being used, the simplest way to correct this problem is to lift the signal ground on the end of the connecting cable closest to the signal source. NOTE: This is not to be confused with disconnecting the safety ground on the power plug - this should be avoided at all costs, as it can present a safety hazard.
Page 4 If using SRM 350 or SRM 450 and its preset, start normal and it should be great. But position of the SRM 1550 relative to the full range speakers as well as to other subs in the system can cause cancellation.