Event electronics S250 TM, S250, 20/20 User Manual

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20/20™ S250

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System S ubw oofer

USER GUIDE

20/20 S250 SYSTEM SUBWOOFER GUIDE2

T

hank you for choosing the 20/20 S250 System Subwoofer. To get the

most from your new subwoofer, please take a moment to read this

manual and familiarize yourself with the product’s features, set-up, and use.

About the 20/20 S250 System Subwoofer

Everyone wants more bottom end from their audio setup, and the Event
self-powered 20/20 S250 System Subwoofer makes an excellent foundation
for an extended bandwidth monitoring system. With five balanced inputs
and pass-throughs for active monitors, the 20/20 S250 provides low
frequency bandwidth and power extension to all audio channels in mono,
stereo, and 5.1 surround monitoring systems. A sixth balanced input is
available for monitoring the separate Low Frequency Effects (LFE) “.1”
signal, along with its own pass-through for feeding multiple subs when
room size or program material demands more acoustic output.

The 20/20 S250’s variable crossover allows you to tune the subwoofer to
your active monitors’ natural low-end response. This produces the lowest
possible sub-to-monitor crossover frequency, which results in more
accurate monitor system performance, and more options for subwoofer
placement in the studio. Other subwoofer systems only pass the front
channels through a fixed 80Hz crossover, which changes the low fre­quency sonic character of the monitors and unnaturally redirects more
audible acoustic energy though a single low frequency channel.

The 20/20 S250’s versatile Bass Management System includes the five
monitor inputs and a monitor group level control. This feeds the active
variable crossover, a continuously variable 0-180° phase delay control,
and a polarity invert switch. There’s also a monitor input disable switch for
instant in/out selection. The separate LFE input has its own level control
and a separate crossover fixed at 120Hz. Everything works together as a
system: The 20/20 S250 System Subwoofer.

Crossover, phase, and polarity settings for Event Direct Field Monitors are
included in this user guide. Additional information can be found at
www.eventelectronics.com.

20/20 S250 SYSTEM SUBWOOFER USER GUIDE

Setup

The monitoring format and room size generally dictate subwoofer set-up.
The 20/20 S250 System Subwoofer supports Mono, Stereo, and 5.1 chan­nel formats, plus most anything in-between.

If you are confused about integrating a subwoofer into your stereo
monitoring system, or about how to set up your surround speakers with a
subwoofer, don’t worry: If you currently have an accurate set of active
direct field monitors up and running—that is, properly placed in front of
you in a reasonable acoustic environment—then you are likely ready to
place, connect, and use the 20/20 S250. And, if your control room is large
enough, with some space behind the listening position, you can add three
more of the same monitors mounted at the same height as your existing
monitors, and be ready for 5.1 surround monitoring.

The truth is that the same acoustic principals apply whether you have two
speakers or six. You cannot go wrong if you follow these few guidelines:

• Start with good monitors. If you have two trusted direct field monitors,

get three more of the identical kind for your surround monitoring system.
Good stereo monitors make good surround monitors.

• It seems obvious to place both speakers in a stereo pair equal distance

away from the listening position. We do this instinctively to maintain stereo
balance. The same rule applies to surround monitoring where all the
speakers (fronts, rears, and subwoofer) are placed at equal distance to the

3

Unpacking

The shipping container is designed to protect your subwoofer during
transit. Please unpack and check your subwoofer carefully, and
immediately report any damage to your dealer or to the company that
delivered the subwoofer to you. The packing materials are designed to be
reused—do not discard them. If you need to return the subwoofer to the
factory for repair, it must be shipped in the original packaging.