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Technical Description 

 

Jamo D 4 Concept  

 

 

 
Contents: 

 

 

 

 

 

1. General system description 

 

 

 

2. The products:  

2.1. D 400 

 

 

 

2.2. D 430 

 

 

 

2.3. D 450 

2.4. D 4CEN 

2.5. D 4SUB   

 

 

 

3. Driver explanation 

 3.1. 

Tweeter 

 

  

 3.2. 

Mid-woofer/woofer 

  

 

3.3. (Sub) woofer 

 

 

4. Electronics (D 4SUB) 

 

 

 

 

5. Cabinets   

 

 

 

 
 

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Содержание D 4 Concept

Страница 1: ...Technical Description Jamo D 4 Concept...

Страница 2: ...t Contents 1 General system description 2 The products 2 1 D 400 2 2 D 430 2 3 D 450 2 4 D 4CEN 2 5 D 4SUB 3 Driver explanation 3 1 Tweeter 3 2 Mid woofer woofer 3 3 Sub woofer 4 Electronics D 4SUB 5...

Страница 3: ...ice of very high quality materials and development of completely new and very powerful driver units The sound reproduction of the D 4 is very detailed clear and open in the entire spectra with a large...

Страница 4: ...der filtering D 430 D 430 is a 2 way bass reflex system featuring a 6 woofer and a 1 DCD tweeter This compact bookshelf speaker can be placed on a bookshelf or on the designated D 4FS stand providing...

Страница 5: ...n and thus results in cleaner sound reproduction Furthermore each chamber is optimized for drivers intended to work in it The internal partition is angled so that the mid woofer is given all possibili...

Страница 6: ...6 woofer So actually by reducing the cone area we achieved exactly what we wanted acoustically identical drivers and thus a seamless transition between the front speakers The D 4CEN is of course magn...

Страница 7: ...result in too high bass level from approx 60 Hz and increasing downwards In the range between 20 30Hz it peaks up to 5 10dB in an average room At first impression this could sound really impressive bu...

Страница 8: ...ly is in opposite phase resulting in zero or very limited output from the tweeter By clamping the middle of the dome and only using a ring of the cone area on each side of the voice coil the tweeter i...

Страница 9: ...sult is a cone with very well controlled break up modes resulting in extremely low distortion all over and a very open and detailed midrange for optimum voice reproduction The basket is made of magnes...

Страница 10: ...re lightweight 2 layer voice coils in order to achieve maximum attack the ability to start and stop precisely and minimum distortion these acoustic properties are of utmost importance for optimum voic...

Страница 11: ...is going to be fed by a 400 W amplifier The foam surround allows fast movement at its low frequency working range Electronics D 4SUB Amplifier The D 4SUB features a 400 Watt Class D amplifier that op...

Страница 12: ...ween All materials are characterized by excellent acoustic properties i e high internal damping This prevents vibrations from travelling from one driver to another Also the planar design gives optimum...

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