Ampeg B4R manual Biamp Highs / Lows

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B4R Bass Amplifier

In the example shown below, the B4R’s two internal power amplifiers will power both a high frequency cabinet and a low frequency cabinet. The crossover point is determined by the Frequency control (#16).

Set the Stereo/Mono Bridge switch to the OUT (Stereo) position and connect the system as follows:

Biamp:

Highs / Lows

B4R

PWR

PWR

PWR

PWR

AMP B

AMP A

AMP B

AMP A

 

 

 

 

3

1

 

 

(BIAMP)

 

 

 

 

 

 

IN

3

2

 

2

OUT

(STEREO)

TO

INPUT

JACK

HIGH FREQ. CABINET(S)

LOW FREQ. CABINET(S)

TO

INPUT

JACK

1: Set the Full Range/Biamp switch to the IN (Biamp) position.

2:Connect a speaker cable from the B4R’s Power Amp A Speaker Output jack to the input jack of the low frequency cabinet(s).

3:Connect a speaker cable from the B4R’s Power Amp B Speaker Output jack to the input jack of the high frequency cabinet(s).

In the example shown below, the B4R’s two internal power amplifiers are bridged together and will power the low frequency cabinet(s). Asecond amplifier will be used to power the high frequency cabinet(s). The crossover point is determined by the Frequency control (#16).

Set the Stereo/Mono Bridge switch to the IN (Mono Bridge) position and connect the system as follows:

Biamp with a Second Amp

B4R

POWER AMP (SVP-1500)

 

BIAMP

BIAMP

1

HI OUT

LO OUT 2

MONO

MONO

 

BRIDGE

PWR

BRIDGE

 

 

 

AMP A

 

4

P.A. IN

4

(MONO

 

BRIDGE)

IN

(MONO)

MONO

BRIDGE

3

CH A

INPUT

IN

(MONO)

TO

INPUT

JACK

TO

INPUT

JACK

HIGH FREQ. CABINET(S)

LOW FREQ. CABINET(S)

1:Connect a shielded cable from the B4R’s Biamp High Output jack to the Input jack of the High Frequency power amplifier.

2:Connect a shielded cable from the B4R’s Biamp Low Output jack to its Power Amp A Input jack.

3:Connect the high frequency power amp’s Speaker Output jack to the input jack(s) of the high frequency cabinet(s). (Observe amplifier’s minimum load rating!)

4:Connect a heavy duty speaker cable terminated with a Speakon® connector or dual banana plugs from the B4R’s Mono Bridge / Biamp Output jack to the input jack of the low frequency speaker cabinet. (Speakon® : pin 1 +, 2 –; Banana: Mono –, Mono +.)

Speakon® is a registered trademark of Neutrik AG.

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Contents B4R B4R Bass Amplifier An Introduction to your new Ampeg B4R Bass Amplifier FeaturesFront Panel Controls and Their Use Front Panel Controls and Their Use Con’t BI-AMP Rear PanelB4R Rear Panel Con’tMono Bridged ConnectionsBiamp Highs / Lows Rack Mounting Some Suggested SettingsSystem Block Diagram TroubleshootingOutput Power Rating Technical Specifications