Technical Description Jamo D 7 System Contents: Page 1. General system description 2. The products: 2.1. D 7LCR 2.2. D 7SUR 2.3. D 7SUB 3. Driver explanation 3.1. Tweeter 3.2. Midrange 3.3. Woofer 3.4. (Sub) woofer 4. Electronics (D 7SUB)
General description With the Jamo D 7 System, the goal was to create a THX certified system, where the famous qualities from our predecessors are kept i.e. a wide and high listening window, design and compact size, but with an even more dynamic, open and detailed sound reproduction.
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This is in fact one of the reasons why Jamo has chosen to make a more compact subwoofer – giving the consumer freedom of choice depending on his room size and personal preferences – we call this “Individual Sound Solutions”.
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All seven main speakers in the D 7 System are designed for wall mounting. But as a new option, the D 7LCR is also designed for free standing – on an extremely sturdy dedicated floor stand. When wall mounted more parameters are “controlled” than with a free standing position: As there is no distance from the speaker to the rear wall, we know the room amplifies low frequencies and how much.
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On the top of the front frame is an exclusive oval aluminium badge with the Jamo - and THX Ultra2 logo. The cabinets come in Stone Grey. The surround speakers D 7SUR and the subwoofer D...
D 7LCR / D 7SUR / D 7SUB description D 7LCR D 7LCR is a 3-way speaker with two 5½”woofers, two 2½” midrange drivers and one 1” tweeter, see more details about the driver units below. The compact drivers improves the dynamics: As they weigh less they can move faster.
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Hz) normally would result in phase cancellation, when listening off axis. However, since the x-over point is as low as 400 Hz this problem is eliminated. The midrange drivers could easily work up to 4k Hz, but then again phase cancellation would occur, just here in the vertical direction.
D 7SUR dipolar surround speaker D 7SUR, same drivers as the D 7LCR. This is done to achieve seamless timbre matching with D 7LCR and to obtain the same D 7SUR high level of detail in the sound reproduction. D 7SUR is equipped with one 5½” woofer, four 2½” midrange drivers and two 1”...
When equipped with one woofer, the depth of the cabinet can also be minimized, further adding to the ease of installation in the room. The crossover frequency for the woofer is set at 200Hz, making it impossible to locate the speaker placement. With this configuration we have a dipole surround speaker with the “best of two worlds”: It is capable of reproducing the deepest bass - and still able to...
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deep, precise and detailed reproduction of the low register - perfectly matching the sound from D 7LCR. D 7SUB visually matches D 7LCR as width and design are identical. A change in THX Ultra2 compared with THX Ultra is the frequency range.
At first impression this could sound really impressive, but especially when listening to music the sound can be “boomy” and rather annoying. The Boundary Gain Compensation starts at 55 Hz -3dB and drops to –10 dB at 20 Hz. For users of THX decoders without Boundary Gain Compensation, the D 7SUB has a quite unique feature: Boundary Gain Compensation is built into the D 7SUB on a separate input, thus granting optimum benefit...
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1" tweeter features completely design diaphragm/dome called Dual D 7 tweeter cut through view Concentric Diaphragm. The coated textile diaphragm looks like two rings, one on the “inner” and one on the “outer” side of the voice coil – hence the name “Dual Concentric”. The quite eye-catching centre plug has two purposes: It is a wave-guide and it clamps the diaphragm.
compliance and therefore it has less influence of the movements of the voice coil. All these features in combination allow the diaphragm to move effortless and the result is a very natural, detailed, dynamic and open sound reproduction. Midrange The 2½” midrange was developed especially for the D 7 as it had to fit into our high demands to...
The large voice coil in combination with a powerful neodymium magnet, results in a very powerful motor, making the unit capable of high sound pressure level/power handling. The magnet is magnetically shielded. Woofer 5½” also developed specially for the D 7. aluminium diaphragm material was chosen...
were necessary in order to achieve the required SPL from the compact woofer. The woofer operates without break-ups until 2k Hz, which is far beyond its working range as the x-over frequency is 400 Hz. Instead of a dust cap, the driver features a solid aluminium centre plug.
The long throw woofer is capable of linear movements up to +/- 15 mm. It is equipped with a transducer at the back of the diaphragm that measures the acceleration, which is used for the MFB servo control. Electronics (D 7SUB) Amplifier The D 7SUB features a 400 Watt Class D amplifier that operates at a highly efficient 85%.
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Even at high SPL the sound is precise and distortion very low. Thanks to MFB the driver “overshoot” is dramatically reduced adding to the perfect timing. The figure shows the overshoot of a woofer with and without MFB. MFB controls the woofer and eliminates the overshoot very quickly.
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quite “impressive” when listening to surround with a lot of explosions etc., but it is also the reason why many consumers prefer to turn off the subwoofer when listening to music - it simply sounds annoying no matter how low you adjust the subwoofer level. The very powerful amplifier combined with the MFB makes the bass reproduction deep, precise and...
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The MDF board used for the D 7LCR front baffle is 22 mm , the rear baffle is 25 mm, and the bottom/sides are 19 mm thick. D 7SUR has two arrays for the midrange/tweeter and the wood part of the cabinet is made of 16 mm MDF board.
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English Dansk The scope of the warranty Garantiens omfang The warranty period will come into force as from the Garantiperioden træder i kraft fra den på fakturaen purchase date stated on the invoice. The warranty will påførte købsdato. Tidsrummet for garantiens dækning apply for the following period of time: er som følger: •...
Deutsch Français Garantieumfang Couverture de la garantie Der Garantiezeitraum beginnt mit dem auf der La garantie prend effet à la date de facture au client Rechnung ange-gebenen Kaufdatum. Die Garantie gilt final, à condition qu’il s’agisse de produits figurant sur für die folgenden Zeiträume: le catalogue annuel en cours ou celui de l’année précédente.
Nederlands Svenska Garantievoorwaarden Garantins omfattning De garantieperiode gaat in vanaf de datum van Garantiperioden gäller från det datum då produkten är aankoop, aangegeven op de factuur. inköpt. Garantin gäller enligt följande tidsperioder. De garantie is geldig voor de volgende periode: •...
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Español Italiano Alcance de la garantía Garanzia El período de vigencia de la garantía empieza a partir Il periodo di garanzia inizia dalla data di vendita, come de la fecha de adquisición indicada en la factura de indicata sul documento fiscale. La garanzia stessa verrà compra.
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No caso de pedido de serviço dentro da garantia, anexe Takuun kattavuus: a nota fiscal original. Seuraavassa kappaleessa lueteltuja poikkeuksia lukuunottamatta Jamo-kaiuttimien takuu kattaa kaikki Defeitos cobertos pela garantia: tuotteessa valmistuksessa käytettyjen Com exceção dos defeitos descritos abaixo, a garantia materiaalien viat.
. .) stb.) Garanciális panasz esetén lépjen kapcsolatba Jamo. kereskedõjével. Garanciális javítás igénylése esetén mellékelje eredeti számláját. Hibák, melyekre kiterjed a garancia: Az alább említett hibákon kívül a garancia kiterjed a termék minden gyártási és anyaghibájára. Hibák, melyekre nem terjed ki a garancia: •...
Polski Türkçe Warunki gwarancji Garanti kapsami Okres gwanacji biegnie od daty zakupu urzadzenia podanej na Garanti dönemi, fatura üzerinde belirtilen satis fakturze. Okres gwarancji trwa: tarihinden baslayacaktir. Garanti asagida belirtilen süre boyunca geçerli olacaktir: • 2 lata – w przypadku podzespolów elektronicznych (elementy ukladu zasilania, wzmacniacz, itp.) •...
Slovensky esky Rozsah záruky Rozsah záruky Záru ná doba sa za ína od dátumu zakúpenia Záru ní doba za íná platit od data nákupu, jak je uvedeného na pokladni nom bloku. Záruka je platná uveden na prodejním dokladu. Záruka je platná na nasledovné...
Slovensko Obseg garancije as garancije se šteje od dneva prodaje, navedenega na ra unu. Garancija obsega naslednje obdobje: • 2 leti za elektroniko (elektri no napajanje, oja evalnik itn.) • 7 let za druge dele (ohišje, zvo niške enote itn.) V primeru, da vam ni kaj jasno, se obrnite na vašega prodajalca.
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hrvatski Opseg važenja jamstva Razdoblje važenja jamstva po inje od dana kupnje prema datumu navedenom na ra unu. Rok jamstva e trajati tijekom slijede ih razdoblja: • 2 godine za elektroniku (napajanje, poja alo, itd.) • 7 godina za ostale dijelove (ku ište, zvu ni ke kutije, itd.) U pogledu jamstvenih zahtjeva molimo Vas da se obratite svom dobavlja u.