JBL PROFESSIONAL SPECIFIC:
Can I suspend TR / MR
/ SR Series enclosures?
TR / MR / SR Series cabinets
were NOT designed for fixed installations
that require the cabinet to be suspended. The enclosures are
NOT reinforced and lack suspension points for fixed installations.
Suspending these cabinets represents a serious safety hazard.
As an alternative, consider the Sound Power, Marquis or Array Series. These systems
have properly designed suspension points installed and are reinforced.
Does positive voltage to the black or red
terminal give outward cone / diaphragm motion?
In most cases, the
black terminal is considered to be the positive terminal. Listed
below are drivers with black positive terminals (positive
voltage to black terminal gives outward cone/diaphragm
motion):
|
1400PRO |
2105H |
2118H/J |
2123H |
2202H |
2206H |
2220H |
|
2225H |
2226H |
2235H |
2240H |
2241H |
2245H |
2404H |
|
2405H |
2426H/J |
2427H/J |
2430H |
2435HPL |
2445H/J |
2446H/J |
|
2447H/J |
2450H/J |
2451H/J |
2485H/J |
2490H/J |
E-Series |
G125 |
|
G135 |
LE8T-H |
2119H |
2416H-1 |
2417H |
2418H |
2420H |
|
2421B |
2430H |
|
|
|
|
|
As of a few years ago, JBL
Professional began manufacturing transducers with the IEC standard of positive to
red. Listed below are some
drivers with red positive
terminals (positive voltage to red
terminal gives outward cone/diaphragm motion):
|
2025H |
2035H |
2242H |
M121-8 |
M151-8 |
2012H |
2020H |
|
2227H |
2406H |
|
|
|
|
|
When in doubt, consult the
specification sheet for the model in question.
Will JBL give
a system recommendation for a specific venue?
JBL can only provide general system design concepts and comment on existing ideas.
We can, however, refer you to a reputable sound engineer or contractor who can design
a system for you.
What are the differences between the old SR Series and
SR Series II?
- Improved crossover networks
- Stronger corners and
handles
- Two upgraded components:
the 2417H 1-inch compression driver, and 2119H 8-inch midrange
- 2446H 2-inch compression
drivers have been changed to 1.5-inch 2447H for increased high frequency output
and lower throat distortion
- Network modifications
to convert an old version to a new version are readily available.
- Updated networks incorporate
Neutrik Speakon connectors as well as ΒΌ inch input jacks.
Where can I get "loop-through" power cables for my EON Powered Series speakers?
EON powered speakers use a standard IEC male connector for AC power. A
female connector is provided for looping AC power through to another EON speaker.
JBL Customer Service sells male and female cable-end IEC connectors that can be
installed on standard 3 conductor electrical power cable. The parts numbers are
CP22S (the female connector) and CP22R (the male connector). Only those with the
skill and knowledge to fabricate safe, reliable electric power cables should install
these connectors.
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