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Terratec Aureon Sky i Logitech Z-560
07.06.2003.
    « Prev  : Stranica 3 od 13 :  Next »      By ::  Frane Borozan 
- Zvučnici u detalje -

Najveći dio čitavog sistema je ogromni subwoofer dimenzija 38x28x28cm s velikim driverom od 20cm. Razlog velike težine i veličine basa je što sadrži i pojačalo velike jačine koje treba opskrbljivati sistem od 400W RMS. Pojačalo hladi veliki pasivni hladnjak veličine 23x20x3cm. Ako ne "ložite" zvučnike previše onda će hladnjak biti topao na dodir. Do sada sam samo jedan put sistem držao "do kraja" nekih 2-3 sata na malom tulumu kod prijatelja. Nakon tih 2-3 sata hladnjak je postao tako vruć da ste mogli peći jaja na njemu. Odmah sam "ubio" bas softwerskim ekvilajzerom i sateliti su sami ložili nekih pola sata. Nakon pola sata wufer se vratio na normalnu temperaturu i tada je ponovo bio spreman za mukotrpan rad. Nakon ovoga ozbiljno sam počeo razmišljati da na hladnjak ugradim jedan 120mm ventilator.

Jačina samog basa je 188W što je dovoljno snage da ispuni sobu srednje veličine jakim basom. Šteta je ovako jak sistem držati na manje od pola. Ovo treba iskoristiti do kraja. Ali budite upozoreni, posvađat ćete se sa svim susjedima (osim ako nisu gluhi). Ljudima ispod vas činit će se kao da im čekić lupa nad glavom. Probao sam pojačati zvučnike na malo više od pola snage i udaljiti se iz stana. Iz prizemlja (ja sam na 3. katu), čuje se samo bas - zamislite kako je bilo onome koji živi ispod mene. Jednom mi je čak čovjek lupao čekićem po svojem stropu, tj. mojem podu. Od tada zvučnike ložim samo ujutro od 11-13 i popodne od 16-20.

Vrući zvučnik

Preko cijele prednje strane vidimo driver obložen crnim metalom oko kojega se nalazi plastika boje kroma da učini zvučnik što atraktivnijim. Da se mene pitalo ja bih povećao cijenu zvučnika za 100-200kn i kromirao cijeli taj dio jer bi tada sustav izgledao još skuplje.

U oko bode oznaka THX s prednje strane koja govori da se Logitech potrudio napraviti zvučnike koji zadovoljavaju THX certifikat kojeg je napravio veliki George Lucas (u svojoj firmi Lucas Arts), za potrebe svoga filma Return of the Jedi. THX je tajna Lucas Artsa o kojoj se vrlo malo zna i dobro je čuvaju tako da su njene pune specifikacije nedostupne. Kasnije je Lucas vidio da se na tome može debelo zaraditi, a ostalo je povijest. Certifikat inače nije ništa bolji od Dolbya, ali je zato dosta skuplji pa ga nemaju baš svi sistemi i kina.

Sa strane od masivnog drvenog woofera vidimo ogromnu tubu za potisak zraka koji proizvodi woofer. Ovakvu tubu ćete vidjeti u raznim oblicima na skoro svim većim zvučnicima, a njezina veličina ovisi o snazi drivera. Ovdje ja vidim jedan debeli nedostatak, a ujedno je i nedostatak cijelog sistema - ova tuba nije zašerafljena s vijcima, već je zalijepljena nekom vrstom ljepila. Nedostatak ljepila je njezina neotpornost na trzaje, a kako wufer ima jak bas, bojim se da će se jednog lijepog dana wufer samo raspasti :) Daleko od toga - nisam do sada vidio niti jedan računalni zvučnik, a da su na njemu korišteni vijci. Taj luksuz je ostavljen starijoj braći iz hi-fi svijeta.

Maksimalna snaga koju sustav s pojačalom može povući iz mreže je 720W. Za napajanje mu dakle treba osigurati omanju elektranu. Cijenimo to što je AC/DC pretvarač stavljen u kutiju pa nema "cigle" na žici.

Maks. snaga koju treba osigurati sistemu

 

Na stražnoj strani subwoofera nalazi se cijela serija konektora. Tamo možemo naći 8 konektora za zvučnike (po dva kanala za svaki od četiri zvučnika), priključak za SoundTouch Control Center i master off/on priključak.

Konektori

Priključak za SoundTouch Control Center

SoundTouch Control Center je glavni dio za kontroliranje sustava. Iz njega vode dva kabela - jedan ide prema wuferu i u obliku je DIN-a, dok se drugi sastoji od dva obična 3.5mm jacka koji se spajaju u zvučnu karticu na front i rear. Na njemu se kontrolira glasnoća sustava, jačina basa, fade između prednjih i zadnih zvučnika, a tu je još i tipka za M3D.

M3D je Logitechova tehnologija koja stereo zvuk raširuje u surround zvuk tj. pokušava se dobiti surround zvuk bez reverba ili jeke. M3D zna ponekad odlično izvesti zvučnu sliku, ali ne funkcionira uvijek baš dobro. Na zadnjim zvučnicima se ponekad može čuti distorzirana zvučna slika ili neka vrsta jeke. Ja ga osobno stalno držim isključenim.

Oko gumba za M3D i potenciometra za glasnoću nalaze se zelene i plave LED diode. Na slici možete vidjeti kako to izgleda u mraku uz MS Explorer.

SoundTouch Control Center glavom i bradom

Mrak stvar u mraku

3.5mm jackovi

DIN konektor od SoundTouch Control Centera



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