d&b E4 - Manual (Page 5)

2.1. Product description
The E4 and E5 cabinets are light-weight 2-way passive
loudspeakers using coaxially mounted, wide dispersion dome
tweeters. The coaxial design offers a symmetrical dispersion
pattern in the horizontal and vertical plane while the cabinets may
be mounted in either attitude.
The E4 employs a 4” neodymium LF driver in an ultra-compact,
sealed enclosure. Its frequency response extends from 130 Hz to
20 kHz.
The E5 employs a 5” ferrite LF driver in a bass-reflex enclosure
covering the range from 85 Hz to 20 kHz.
Both systems can be used stand-alone or supplemented by
different E-Series subwoofers.
The enclosures are injection molded with an impact resistant black
paint finish. The fronts of the loudspeaker cabinets are protected
by a rigid metal grill.
The E4 and E5 rear panels incorporate a M10 threaded insert to
accept the Z5356 E4/E5 Ball joint adapter.
In addition, a safety hook [S] is integrated in the rear panel to
allow the attachment of a secondary safety wire.
CAUTION!
No load suspension device
Under no circumstances should the safety hook [S] be used to
support other loads.
2.2. Connections
The cabinets are fitted with a pair of NL4 connectors and a two
pole push terminal block (PT - cross-section up to 6 mm
2 /
AWG 10). All four pins of both NL4 connectors are wired in
parallel. The cabinets use the pin assignments 1+/1–. Pins 2+/2–
are designated to active subwoofers.
Pin equivalents of the applicable connector options are listed in the
table below.
NL4 1+ 1– 2+ 2–
PT Red (+) Black (–) n.a. n.a.
Fig. 1: E4/E5 loudspeaker
Fig. 2: Connector wiring
2. E4/E5 loudspeaker
d&b E4/E5 Manual (1.3 EN) 5