Jbl GTH400-20107 User Manual download pdf (Page 8)

7

3.2 Typical Applications

The diagrams on pages 8 & 9 show

the most common basic system

configurations of the GTH400. One

or more of these building blocks may

be combined to form elaborate system

designs.

The GTH400 uses the terminology

“Group 1,” “Group 2” and “Group 3” to

indicate the three main signal paths

within the amplifier. Each “group” may

consist of a mono bridged signal or a

stereo pair of L+R signals depending

on the system configuration.

RL RL

– + – +

– + – +

L

+

L

–

R

+

R

–

L

+

L

–

L

+

L

–

R

+

R

–

R

+

R

–

– + – +

Application 1

6-Channel Bi-Amplified System with

Non-Fading Subwoofers

GTH400

GR 1

GR 2

GR 1

GR 2

GR 3

RL RL RL

Front Speakers Rear Speakers Subwoofers

Group 1 Group 2 Group 3

Mode Stereo Stereo Stereo

Group 2 Input – GR 2 –

Group 3 Input – – GR 1+2

Speaker Crossover High Pass High Pass Low Pass

Preamp Crossover – – –

– + – + – +

L

+

L

–

R

+

R

–

L

+

L

–

L

–

R

+

R

–

R

+

– + – +

Application 2

5-Channel Bi-Amplified System with

Non-Fading Mono Subwoofer

RL RL

Preamp or

Speaker-Level

Input

Front Rear

RL RL

GR 1

GR 2

GR 1

GR 2

GR 3

RL RL

Preamp or

Speaker-Level

Input

Front Rear

GTH400

Front Speakers

Satellite Speakers

Rear Speakers Subwoofer

Group 1 Group 2 Group 3

Mode Stereo Stereo L+R

Group 2 Input – GR 2 –

Group 3 Input – – GR 1+2

Speaker Crossover High Pass High Pass Low Pass

Preamp Crossover – – –

RL RL

GTH400-20107 06/03/98 15:49 Side 7

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