JAMO 250 Скачать руководство пользователя страница 2

General Description 

 
With this dedicated subwoofer line up from Jamo we wanted to achieve several 
goals. 
We wanted a subwoofer line up with the best ever performance per $ and we 
wanted it to be able to match a variety of different speaker solutions on the 
market, including Jamo of course.  
 
Making a dedicated subwoofer line up, instead of making designated 
subwoofers to a specific speaker series creates e few challenges. 
One challenges being to create a design and performance capable of matching 
basically all speakers in the marketplace.  
The design should be modern and “independent”, yet discreet enough to 
match both different speakers and different interiors.  
Another challenge for the development team was to optimize every “link in the 
chai” to achieve the best ever performance. We wanted a subwoofer line up 
capable of achieving high sound pressure levels (SPL) without compromising 
the sound quality. It is quite easy to make a subwoofer play loud – but it is a 
challenge at the same time to maintain precision and musicality.  
This turned out to require development of completely new drivers and new 
amplifiers as well as a new approach to manufacturing the cabinets, since it was 
clear very early in the development process that a new way of bass reflex 
loading (

S

lotted 

B

ass reflex 

P

ort) had to be invented in order to keep the 

cabinets as compact as possible. 

 

The Products

  

 

SUB 250 
SUB 250 is the smallest subwoofer in the line up. But do not let this deceive you. 

With an long-throwing 8” subwoofer driver 
housed in a Slotted Bass reflex Port cabinet 
together with an BASH amplifier capable of 
delivering over 250 W peak power this 
subwoofer is a really strong performer 
capable of deliver bass down to 30 Hz (- 
6dB). The SUB 250 has a very flat frequency 
response (see figure x) making it capable of 
playing bass notes in a very convincing way 
compared to many conventional bass reflex 
subwoofers. (see picture 1). 

Содержание 250

Страница 1: ...Technical Description Jamo SUB 250 300 550 650...

Страница 2: ...evels SPL without compromising the sound quality It is quite easy to make a subwoofer play loud but it is a challenge at the same time to maintain precision and musicality This turned out to require d...

Страница 3: ...ted construction is used here as in the SUB 250 But with more cabinet volume allowing for deeper tuning more power and a 10 driver this subwoofer is capable of reaching down to 28 Hz 6dB Still with mu...

Страница 4: ...is no bass reflex port to contribute to a high SPL it delivers 110 dB sound pressure level The advantages of a closed cabinet is absolutely absence of port noise and an even better timing resulting in...

Страница 5: ...is based on a continually variable supply voltage which tends to zero when there is no input signal and reaches its highest level when the amplification requires power This supply voltage is continuou...

Страница 6: ...ification depends on the actual room and where you are positioned normally it increases the closer you get to a wall which also means that the problem gets worse the smaller the room This can result i...

Страница 7: ...ne is moving Sub 450 550 For the SUB 450 550 a 10 driver is chosen The driver features an 38mm 4 layer voice coil with an X max at 15mm allowing for high excursions The heavy magnet system features a...

Страница 8: ...In normal setup the port is radiating towards the rear wall giving an even higher efficiency at very low frequencies...

Страница 9: ...250 300 550 650 Frequency range Hz 30 150 3dB 28 150 3dB 26 150 3dB 24 150 3dB Impedance Ohm 22 kOhm 22 kOhm 22 kOhm 22 kOhm 12 V trigger No no no yes Phase Yes variable Yes variable Yes variable Yes...

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