Starting with the cabinet, the Mission 750’s housing is a mere 355mm (h) x 216 (w) x 270 (d). Perfect for a ‘bookshelf’ speaker application.
Yet, it still employs a design and build standard equal to that of the Mission 700, including the multi-layer sandwich construction and specially developed acoustic damping adhesive complemented by a custom internal bracing structure.
A lining of foam and long-hair fibre aids internal resonance control, while the custom-profiled rear reflex ports aid in bass extension beyond what is traditionally expected from a cabinet of these compact dimensions.
IDG is not just a design statement; it is a crucial component of Misson’s loudspeaker design from the original 700 series onwards.
By placing the treble unit below the bass/midrange driver, the length of the sound path is balanced, resulting in sound waves that coincide at the listener’s head height.
This technique improves ‘time alignment’.
However, this design is not simply a matter of inverting the speaker cabinet.
Every aspect of the industrial and mechanical design requires precise calculations to ensure that the positioning, spacing, and alignment contribute to the goal of achieving optimal ‘time alignment’.
This is achieved through a meticulous crossover design process that is of artisan quality.
Within the IDG format, the all-new Mission 750 model, just like the 700 and 770, uses a newly developed polypropylene bass/midrange driver and motor system but is now in a new 5.25” profile specifically designed for this model. This innovative cone and driver technology not only enhances the loudspeaker’s overall design to meet modern power handling and dynamic requirements, but it also maintains the 700 series extended response and low colouration.
Every aspect, from the rigid, cast chassis to the low-density surround, has been thoroughly examined to deliver a driver with greater rigidity and precision-controlled cone-termination for dynamic performances and tight, fast, and energetic output.
High-frequency reproduction is provided by the 28mm, lightweight, coated microfibre dome, as found in the Mission 700 model, and likewise, placed below that bass/midrange driver.
With a high-frequency performance eerily close to that of the flagship 770, the Mission 750 also incorporates a specially damped rear chamber which aids in resonance control, extends bandwidth and facilitates the crossover frequency for super smooth treble performance.
THÔNG SỐ KỸ THUẬT
Model | Mission 750 |
General description | Two-way standmount |
Design philosophy and core technology | |
Enclosure type | Bass reflex |
Transducer complement | 2-way |
ABR | |
Bass driver | 5.25" (135mm) mineral loaded polypropylene cone |
Midrange driver | |
Treble driver | 1.25" (28mm) Soft Dome |
Full-range driver | |
AV shield | No |
Sensitivity (2.83V @ 1m) | 86dB |
Recommended amplifier power | 25W - 100W |
Peak power handling | |
Peak SPL | 103dB |
Nominal impedance | 6Ω (Compatible 8Ω) |
Minimum impedance | 4.5Ω |
Frequency response(+/-3dB) | 48Hz - 20kHz |
Bass extension(-6dB) | 42Hz |
Crossover frequency | 2.4kHz |
Cabinet Volume (in litres) | 12.2L |
Dimensions (mm) | |
Height (on plinth) | 355mm |
Width | 216mm |
Depth (with terminals) | (270 + 35) mm |
Carton size | 565 * 395 * 485 mm |
Net weight | 9.0kg / pcs |
Gross weight | 19.5kg / ctn |
Finish | Walnut or Black Oak real wood veneer with white bafe finish |
Standard accessories | rubber feet |