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4. Cabinets 

 

The MDF board used for the E 700 and the E 7CEN is 16mm thick all around. This together 

with the compact size, the solid brushed aluminium front baffle, the 2 degrees angle of the 
front baffle and the Decoupled Tweeter Technology makes for a very resonance dead base 

for the drivers to work in. 

 

The E 750 and E 770 employ 19mm MDF board. Furthermore we have made the cabinet 

even more inert by adding internal bracings and at the same time a separate enclosure for 
the mid/bass drivers. 

 

The E 7SUB utilises 22mm MDF board all round. This together with internal bracing and a 

separate enclosure for the electronics makes for a very solid cabinet with a minimum of 

cabinet vibrations. As with the rest of the E 7 series the front baffle is angled 2 degrees for 
even more rigidity. 

 

 

 

 

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Summary of Contents for E 7SUB

Page 1: ...Technical Description Jamo E 7 system Version 1 0 ...

Page 2: ...Contents 1 General system description 2 The products 2 1 E 700 2 2 E 750 2 3 E 770 2 4 E 7CEN 2 5 E 7SUB 3 Driver explanation 3 1 Tweeter 3 2 Midrange Woofers 3 3 Sub woofer 4 Cabinets Page 3 4 4 5 5 5 7 7 7 8 9 5 Technical specifications 2 ...

Page 3: ...solution Decoupled Tweeter Technology DTT Exploded view of the Decoupled Tweeter Technology By decoupling the tweeter from the rest of the loudspeaker vibrations transmitted from the front baffle to the tweeter are reduced by more than 20 dB resulting in an uncommonly detailed and realistic reproduction of high frequencies Firstly the tweeter is decoupled from the aluminium front baffle using a sp...

Page 4: ...controlled colouring of the sound at certain frequencies Decoupled Tweeter Technology solid aluminium front baffle When used as a surround speaker in an E 7 solution the E 700 s voicing ensures that seamless timbre matching is guaranteed when the sound pans across the room 2 2 E 750 E 750 is a tall slim line 3 way speaker utilising a bass reflex system and a rear firing woofer The E 750 is equippe...

Page 5: ...ofer on the E 750 E 770 the in room bass response is also easier to control as the natural quarter wave frequency cancellation is minimised Front firing woofer Rear firing woofer Front firing woofer Rear firing woofer The in room frequency response of a traditional front firing woofer and a rear firing woofer respectively This model offers a low frequency response that reaches down to 35 Hz allied...

Page 6: ...s as any room amplifies the lowest frequencies The Boundary Gain Compensation starts at 55 Hz 3dB and drops to 10 dB at 25 Hz Off Off On Off Off On The magnitude of the room s amplification depends on the room and where you are positioned normally it increases the closer you get to a wall which also means that the problem get worse the smaller the room This can result in too high bass level from a...

Page 7: ...eby the subwoofer switches itself on if it senses a signal and switches in standby mode again a certain time after it has last sensed a signal However in movies or typically classical music with relatively quiet passages many subwoofer tends to switch to standby mode thereby missing the start of a new action packed sequence like for example an explosion or a kettledrum Besides the auto on standby ...

Page 8: ...of the Decoupled Tweeter Technology Please refer to the exploded view of the DTT principle on page 3 3 2 Midrange Woofers The 4 5 5 and 6 midrange woofers found in the E 700 E 750 E 770 and the E 7CEN feature diaphragms made of a special fibre glass glue compound This material helps to control and distribute wave modes evenly thereby ensuring minimal coloration and a very transparent midrange The ...

Page 9: ... to work in The E 750 and E 770 employ 19mm MDF board Furthermore we have made the cabinet even more inert by adding internal bracings and at the same time a separate enclosure for the mid bass drivers The E 7SUB utilises 22mm MDF board all round This together with internal bracing and a separate enclosure for the electronics makes for a very solid cabinet with a minimum of cabinet vibrations As w...

Page 10: ...1 m 85 89 90 87 Frequency range Hz 70 20k 42 20k 35 20k 80 20k 25 150 Crossover frequency Hz 2500 150 2500 150 2500 2500 Impedance Ohm 6 6 6 6 22k Phase Adj 0 180 deg Cut off frequency Hz 40 150 Amplifier rated output W 675 W peak Limiter Yes Boundary gain compensation Yes Weight kg lb 3 0 6 6 14 5 31 9 17 2 37 9 5 8 12 8 21 0 46 3 Dimensions H x W x D mm in 140x238x165 5 5x9 4x6 5 185x912x315 7 3...

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