Electro-Voice 10BX Quick Start Manual

SPECIFICATIONS
Usable Frequency Response in a Typical
Vented 1.2-Cubic-Foot Enclosure
(1 wattl1 meter; see Figure 1):
36-8,000 Hz
Sound Pressure Level (1 wattl1 meter):
98.5 dB
Long-Term Average Power Handling
Capacity (per EIA RS-426-A 1980; see
Power Handling section):
150 watts
Nominal Impedance:
8 ohms
Voice-Coil Diameter:
63.5 mm (2.5 in.)
Thiele-Small Driver Parameters
fl (free-air resonance frequency):
63 Hz
0ES
(electromagnetic
0
at f
l ) :
0.342
OilS
(mechanical 0 at f
l ) :
6.5
(Ou Om.)
0rs (total
°
at f
l :
(0 •• + Oms) :
0.325
VAS
(volume of air having same acoustic
compliance as driver suspension):
42.5 liters (1.5 fP)
110
(half-space reference efficiency):
3.0%
Vo (peak displacement volume of
diaphragm: So x Xmax):
0.113 liters (0.004 fP)
So (effective diaphragm area):
0.342 m
2
(132.6 in.»
Xmax (peak linear displacement of
diaphragm):
3.3 mm (0.13 in.)
R. (dc resistance of voice coil):
5.2 ohms ±10%
Mounting Information
(see Installation section),
Mounting Hole Diameter
(eight evenly spaced holes):
7.1 mm (0.28 in .)-letter "L" drill
Bolt Circle Diameter:
244 mm (9.62 in.)
Baffle Opening Diameter
(front or rear mounting):
229 mm (9.0 in.)
Optional Mounting Accessory:
SMH-1 mounting hardware kit
Dimensions (see Figure 2),
Overall Diameter:
259 mm (10.20 in.)
Overall Depth:
110 mm (4.35 in .)
Net Weight:
5.22 kg (11.5 Ib)
Shipping Weight:
6.4 kg (14Ib)
DESCRIPTION
The Electro-Voice 10BX is a premium 1O-inch
speaker designed for bass guitar. This speaker
is ideal for the bass guitarist who needs to hear
all of the tones and nuances that his four-string
bass is capable of producing, at high stage
levels. The 1 OBX is suitable for full-range repro-
duction of conventional 4-string basses and
basses with a "dropped-O" tuning (or low-O
extension). Used in multiples, this speaker is
capable of thunderous output levels. The 10BX
is perfect for the modern bassist who may be
incorporating "pop" and "slap" techniques into
his/her playing. Power capacity is 150 watts
per EIA RS-426-A 1980. The Power-Handling
section describes these ratings in detail.
This speaker has been "voiced" specifically for
modern bass-players. The 8
1
12-lb magnet struc-
ture has been newly designed to provide both
10BX
10-lnch Extended-Range
Bass Guitar Speaker
• Modern bass-guitar
performance-extended
high-frequency response
• Very solid, tight low-
frequency response
• Ideal upgrade speaker
• 150 watts long-term power
capacity
• Edge-wound flat aluminum
wire for maximum output and
"bullet proof" reliability
• 98.5-d8 sensitivity
high energy and relatively light weight. The
overhung voice coil is constructed of a single
layer of flat aluminum wire for light weight, low
inductance and high efficiency. (Remember,
light weight in a speaker's moving system and
high efficiency in the magnet structure gener-
ally translate to good high-frequency and tran-
sient response.) The most visually obvious
difference in these speakers is the cone and
dust-dome material. It is a new composite made
of paper fibers with mica and epoxy added for
remarkable stiffness. The end result is a speaker
with a very light-weight moving system and a
bright and open sound. Like most professional
Electro-Voice speakers, this speaker utiiizes
an extremely rugged cast aluminum frame to
ensure long-term mechanical integrity.
The 10BX may be front- or rear-mounted with-
out an adapter. The optional SMH-1 speaker
mounting kit facilitates front mounting (see
Installation section).
RECOMMENDED ENCLOSURES
Replacement Use In Existing Enclosures
The 1 OBX will often be used to replace inferior
speakers in existing enclosures. · Mechanical
and electrical characteristics are such that the
superior efficiency, sound quality and reliability
of the 10BX will be realized in virtually any
sealed or vented (bass reflex) enciosure.
Vented Enclosures
The most extended, lowest distortion and best-
controlled bass performance is usually realized
in properly designed vented enclosures. In
such designs, the vent, or port, actually repro-
duces the lowest octave or so of bass re-
sponse. The vent is driven to full acoustic
output by a relatively small motion ofthe speaker
cone itself, acting through the air contained
within the enclosure. The excursion ofthe 10BX