JBL 705P, Руководство пользователя

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Congratulations on your purchase of JBL Professional 7 Series Master Reference Studio Monitors. These
studio monitors meet JBL’s high standards for accuracy and long-term reliability in demanding professional
applications. All 7 Series models incorporate JBL Professional transducer and network technologies to provide
accurate frequency response, exceptional low frequency extension and SPL capability. 7 Series speakers
incorporate JBL’s patented Image Control Waveguide to deliver greater accuracy and an exceptional listening
experience. Additionally, each powered 7 Series monitor is equipped to interface with a range of Analog and
Digital signal sources used in professional production systems. The 705P and 708P leverage JBL Professional
acoustic technologies to deliver unprecedented next-geneneration studio monitor performance. The JBL 705P
and 708P Master Reference Monitors include:
JBL Custom Drivers -
JBL 705P and 708P models incorporate custom JBL transducers for greater dynamic
range and extended frequency response. The JBL 2409H high-frequency compression driver incorporates an
innovative low-mass annular diaphragm to deliver smooth response beyond 30kHz. The JBL725G and 728G
low-frequency transducers produce exceptional low-frequency output into the 30Hz range. JBL’s low frequency
port design works in concert with the low frequency transducer to produce accurate bass response at all
playback levels. JBL’s patented “Slip Stream” port design minimizes the turbulence and front-port design allows
soffit and shelf mounting.
Image Control Waveguide -
JBL’s revolutionary patented Image Control Waveguide allows the the 705P
and 708P to provide remarkable imaging, a detailed sound-stage, and a virtually seamless crossover transition.
Subtle detail can be heard, even in a dense mix. 7-Series models provide a broad “sweet-spot” in your
workspace. And as an added benefit, neutral sound can be heard at almost any listening position in the room.
Integrated Dual Amplification System -
The 705P and 708P models feature a built-in dual amplification
system optimized for JBL’s high-output drivers. A 250W amp powers the 2409H high-frequency transducer,
and a separate 250W amp is dedicated to the 725G low-frequency transducer, providing exceptional output,
dynamic range and ample sound pressure level (SPL) at greater listening distances. Analog inputs with
adjustable sensitivity allow connection of a broad range of professional and consumer sources. Digital AES3
format inputs with switchable sample rate converter allows interface to professional digital systems with sample
rates of up to 192 kHz.
Comprehensive EQ and Delay -
Although 7 Series monitors are designed to yield exceptional neutrality
in any room, the 705P and 708P models also feature onboard room equalization that can be adjusted to
compensate for adverse effects of room acoustics and optimize the accuracy of sound reproduction in
any listening environment. In addition to eight Room EQ filters, six User EQ filters allow implementation of
customized response curves such as the X-Curve or compensation for transmission-loss” when the speaker
is placed behind a perforated cinema screen. User-enabled digital delay allows virtual alignment of speakers
relative to the listening position, while additional “AV Synchronization” delay is available to compensate for
latency in video displays. Factory and User Presets are provided for storage and recall of user-specific EQ and
delay settings.
Installation-Friendly enclosures -
Birch plywood enclosures are braced and reinforced to allow safe
mounting. Top and bottom mounting features allow wall and ceiling mounting using readily available brackets.
Integrated handles on the 708P are provided for ease in speaker positioning.
JBL Professional Reliability
- Prior to becoming a production-ready design, each 7 Series studio monitor
undergoes JBL’s tough power test, in which the speaker is required to play continually without failure at
full output for 100 hours. This demanding test ensures your 7 Series speakers will deliver years of reliable
performance. To get the most out of your JBL 7 Series, please review this owner’s manual and keep it available
for future reference. Also, please register your new speakers at
www.jblpro.com/registration .
Section 2: Introduction