Echo Busters Phase-4 Brochure

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FOUR WAY FULL FREQUENCY TOWER

By ECHO BUSTERS®

High Performance to the FOURTH POWER!

P

rovides superior control of

boomy, “one-note” bass

Helps control

mid and high frequencies

Attain the full bass extension

speakers are capable of
reproducing

Simple, yet effective dynamics:

Diffusion

X 2 + Absorption X 2

Extensive selection of fabric

will match any decor

4 ways to rotate tower for on-site

acoustical attenuation as needed

Phase–4 Full Frequency Tower

The Phase-4

Its primary purpose is to operate as a full time corner bass trap as it stands on the floor.
Rotation of the unit itself provides an additional benefit by exposing its absorptive or
reflective sides to the rest of the room.

Echo Buster® emblem on the top corner of the Phase-4 unit.

Full Frequency Tower is a useful tool in the control of acoustics in a room.

The two absorptive sides are marked by the

The Phase-4

is constructed as a four foot (4’) tall tower made of ¼” laminate

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board with a square footprint measuring approximately 1’ x 1’ (122cm.x30cm.x30cm.). Two
of the adjacent sides of the tower are made of a solid laminate board allowing them to be
used as reflective sections and the other two sides are made of a perforated laminate board
allowing them to be used as absorptive sections. The top and bottom caps are constructed
of 5/8” medium density fiberboard (MDF). The unit can be ordered in five (5’) and six (6’)
foot heights (152cm and 183cm.).

When

applying a pair of the Phase-4’s to the front corners of any room, one has the ability
to select exactly the acoustic envelope one wants to create. If more pinpoint focus and
imaging is required, both absorptive sides should face out and the two reflective sides face
the corner. If the room has adequate echo control and a little more three-dimensionality is
desired, face the two reflective sides into the room while facing the absorptive sides into the
corner.

Perforated,

Wall

Solid,
reflective
side here..

The new Phase-4 Full Frequency Tower:
Used this way, low and high frequencies are
controlled in the corner

Phase-4

...and here.

absorptive
side here..

Wall

Wall

...and here.

Phase-4

Perforated,
absorptive
side here..

...and here.

The new Phase-4 Full Frequency Tower:
Used this way, ultra lows are controlled in the corner,
while higher frequencies are reflected and diffused

Solid,
reflective
side here..

...and here.

Wall

For maximum benefit

, use the room boundaries to enhance the effectiveness of the
Phase-4 tower. By moving the unit out of the corner slightly, more bass energy (boominess)
will be absorbed. For ultimate low frequency (bass) control, set the Phase-4’s with one of
the absorptive sides cutting off the corner of the room (caddy-corner). This allows for
maximum standing wave attenuation.

Creating a small gap increases

Perforated,
absorptive
sides
facing into
corner

low frequency (bass) absorption

Reflective
sides out

Phase-4

toward
room

Wall

Caddy corner
placement provides
the deepest bass
absorption

Phase-4

The new Phase-4 Full Frequency Tower:
Used this way, even deeper lows are controlled in
the corner, while higher frequencies are reflected
and diffused

Wall

The new Phase-4 Full Frequency Tower:
Use this way for deepest low frequency control in the corner

The Phase-4’s

are also very effective when standing in the corners with one

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absorptive and one reflective side facing into the room. One can decide if absorptive sides
facing each other or reflective sides facing one another creates the best sonic in the room.

Phase-4

Phase-4

Solid,
reflective

...and here.

Wall

...and here.

Wall

side here..

Perforated,
absorptive
side here..

The new Phase-4 Full Frequency Towers:
Used this way, lows are controlled in the corner, while higher frequencies are
reflected in the space between the speakers and absorbed out to the listener

Phase-4

Perforated, absorptive

Phase-4

sides toward each other

Solid, reflective sides to the front

The new Phase-4 Full Frequency Towers:
Used this way, lows are controlled in the corner, while higher frequencies are
absorbed in the space between the speakers and reflected out to the listener

Effective low frequency absorption:

Reflective sides facing into the room: 50 Hz. – 450 Hz.
Absorptive sides facing into the room: 65 Hz. – 4000 Hz.
Caddy-Corner placement: 40 Hz. – 500 Hz.

One can even

set one corner differently from the other if there are uneven

dynamics in the room.

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Phase-4

Perforated, absorptive side

Solid, reflective side

Opening

The new Phase-4 Full Frequency Towers:
Used this way, lows are controlled in the corner, while higher frequencies are
adjusted to overcome the effects of the room opening

The new Phase-4 Full Frequency Tower

Phase-4

Seating

– so many possibilities for excellent sound!

Caddy-Corner

positioning for best

bass control and

adjustable mid and

high frequency

control of the room

corners.

Absorptive sides

out for good bass

control and damped

mid and high

frequency

absorption of the

room corners.

Reflective sides out

for better bass

control and lively

mid and high

frequency diffusion

of the room

corners.