Samson F800 Specifications download pdf (Page 9)

Bridged Mode

The F1200 / F800 provides a rear-panel switch that allows it to be used in either

a Stereo or Bridged mode. When this switch is placed in the “STEREO” (right)

position, the F1200 / F800 functions as a true stereo amplifier, where both of the

two independent amplifier channels (Channel 1 and Channel 2) can receive dif-

ferent input signals and produce independent output signals. However, when the

switch is placed in the “BRIDGED” (left) position, the Channel 1 inputs signal is

routed to both power amplifiers bridged together, producing a single output sig-

nal with a true 1200 watt output into a single 8 ohm channel (in the case of the

F1200) or a true 800 watt output into a single 8 ohm channel (in the case of the

F800).

The illustration on the right shows how this works. In Bridged mode, the polarity

(phase) of the Channel 2 output signal is reversed relative to that of the Channel

1 output signal. Both channels then process the same input signal, with the

speaker load connected so that power is derived from both channels. The effec-

tive voltage swing seen by the load is thus doubled, so that the power output is

doubled.

When using the F1200 / F800 in Bridged mode, be sure to connect your loud-

speaker as shown in the illustrations on page 10 and 11 (and as silkscreened on

the rear panel), with the red (+) terminal of the Channel 1 output connected to

the negative input of the speaker and the red (+) terminal of the Channel 2 out-

put connected to the positive input of the speaker.

Do not use the black

ground (-) output terminal of either channel (the speaker load must “float”

away from the amplifier chassis).

See pages 10 in this manual for interconnection diagrams when using the F1200

/ F800 in Bridged mode

BRIDGED

STEREO

MODE SELECTOR

WARNING: Bridged mode is to be used only when the F1200 / F800 is con-

nected to an 8 ohm speaker load. Use of Bridged mode with speaker loads

of 4 ohms or less can result in severe damage to the unit due to excessive

heat and current limiting and will void your warranty!

INPUT

CHANNEL

1(+) OUTPUT

CHANNEL

2(+) OUTPUT

Bridged Mode

OUTPUT

CHANNEL 1

CHANNEL 2

MINIMUM LOAD IMPEDANCE

STEREO

(4Ω/CHANNEL)

BRIDGED MONO

(8Ω)

Bridged / Stereo switch

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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Samson F800 Specifications Page 9

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