Behringer BA115 manual Installation, Specifications

ULTRABASS BA115

4. INSTALLATION

4.1 Speaker connector

When combining several speakers/cabinets, you should bear in mind the resulting overall impedance. Here are some brief explanations about different kinds of connections:

Serial connection: The individual impedance values of the connected speakers are added up. If two 4-Ohm speakers are connected to one another, there is an overall impedance value of 8 Ohms.

Parallel connection: If speaker/cabinets with identical impedance values are connected in parallel, the overall nominal impedance is reversely proportional to the number of speakers, e.g. if you connect two speakers/cabinets, the nominal impedance is halved; if you connect three speakers/cabinets, the nominal impedance is one third of the individual speakers’ impedance; with four speakers, it’s one quarter, and so on. For example, this way you can turn two 8-Ohm systems into one 4-Ohm system.

If four or more speakers/cabinets need to be connected, this can be done using a serial parallel connection. With four speakers with an impedance value of 4 Ohms each, the resulting overall impedance does not change.

+Whenever possible, try to use thick and short speaker cables to minimize power loss. Don’t lay output cables near input cables.

Wiring options for loudspeakers are additionally explained in the following illustrations and tables.

Fig. 4.1: Different types of connections

Number of speakers		2x	2x	2x	4x	4x	4x
Impedance of		4	8	16	4	8	16
each speaker (Ω)
Resulting impedance with		2	4	8	1	2	4
parallel connection (Ω )
Resulting impedance with		8	16	32	16	32	64
serial connection (Ω )
Resulting impedance with		-	-	-	4	8	16
serial parallel connection (Ω	)

Table 4.1: Speaker wiring options and resulting impedance

+Please note that if the LINK connector is utilized, the BA and BB series bass cabinets only support parallel connections.

4.2 Audio connections

Fig. 4.2: Professional speaker connector with polarity allocation

Fig. 4.3: 1/4" TS connector

5. SPECIFICATIONS

High-power bass speakers	15" BUGERATM
	Aluminum cone speaker
Sensitivity	97 dB @ 1 W / 1 m
Impedance	8 Ohm
Frequency response	40 Hz - 16 kHz
Power (RMS / Music)	600 W
Tweeter	1" tweeter driver
SPEAKER CONNECTIONS
Input/Link
	2 professional
	speaker connectors,
	compatible with
	NEUTRIK® SPEAKON®
	(wired in parallel)
	as well as one 1/4" TS
	connector
DIMENSIONS/WEIGHT
Dimensions (H x W x D)	655 mm (25 4/5") x
	655 mm (25 4/5") x
	366 mm (14 2/5")
Weight	ca. 32 kg (70.6 lb)

BEHRINGER is constantly striving to maintain the highest professional standards. As a result of these efforts, modifications may be made from time to time to existing products without prior notice. Specifications and appearance may differ from those listed or illustrated.

8 5. SPECIFICATIONS