JAMO 550 Owner's Manual - Page 2

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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 (Slotted Bass reflex Port) 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).