AMR recommends the following OptiArray Setups:

Room Size

35m2

25m2–70m2

50m2-140m2

100m2-280m2

200m2-480m2

System

Alpha

Epsilon

Iota

Omicron

Upsilon

 

(passive)

(passive)

(passive)

(passive)

(passive)

AM-77

1

1

2

4

8

LS-77 (pairs)

1

2*

4*

8*

16*

Power

360W

360W

720W

1440W

2880W

SPL (3m)

109dB

112dB

118dB

124dB

130dB

System

Beta

Zeta

Kappa

Sigma

Omega

 

(active)

(active)

(active)

(active)

(active)

CCE

1

1

1

2

4

AM-77

1

1

2

4

8

LS-77 (pairs)

1

2*

4*

8*

16*

Power

560W

560W

1120W

2240W

4480W

SPL (3m)

113dB

116dB

122dB

128dB

134dB

*: OptiArray configuration

The Alpha system using a single pair of LS-77s with a total system power capacity of 360W, can sustain 109db SPL at 3m listening distance for the complete system and is thus appropriate for moderate city appartments and condominiums. From this AMR’s OptiArray® configurations extend to the awesome Omega system providing a configuration suited to any size dwelling and listening room. This Omega system consists of 16 pairs of LS-77s in OptiArray® configuration, with a total system power capacity of over 4480W. The Omega system can sustain 134dB SPL at 3m listening distance for the complete system, which is more than many Concert Sound Reinforcement Systems.

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Abbingdon Music Research LS-77 owner manual AMR recommends the following OptiArray Setups