Manuale d’uso / di manutenzione del prodotto DacMagic Plus del fabbricante Cambridge Audio
Vai alla pagina of 40
Upsampling digital to analogue con verter User’s manual 2 ENGLISH Y our music + our passio n DacMagic Plus azur.
2 Make sure you regist er your purchase. Visit: www.cambridge-audio.com/sts By registering, you’ll be the rst t o know about: Future pr oduct releases Software upgrades News, events and e xclusive offers plus competitions! This guide is designed to make installing and using this product as easy as possible.
3 azur DacMagic Plus ENGLISH Contents This package should contain the follo wing: 1 x Azur DacMagic Plus (assembled), 1 x AC po wer adaptor , 4 x rubber f eet, 1 x rubber base, 1 x USB ‘B-A’ type lead, 1 x user’s manual. Introduction ...........
4 Introduction Thank you for purchasing this Cambridge A udio DacMagic Plus Upsampling Digital to Analogue Converter . We are condent that you will enjoy many years of listening pleasure from it.
5 azur DacMagic Plus ENGLISH Up to 2 4-bit content is no w suppor ted via bo th the USB Audio and Digital Inputs. With Windows PCs the DacMagic Plus can operate driverlessly (i.e. use Windows o wn built-in driver) at up to 2 4-bit/96kHz resolution. In addition our own Windows driver (downloadable from www .
6 Import ant safety instructions For y our o wn saf ety please read the following impor tant saf ety instructions carefully bef ore attempting to connect this unit to the mains power supply . They will also enable you t o get the best performance from and prolong the lif e of the unit: 1.
7 azur DacMagic Plus ENGLISH WARNING – T o reduce the risk of re or electric shock, do not expose this unit to rain or moisture. The unit must be installed in a manner that makes disconnection of the mains adaptor from the mains socket outlet (or appliance connector from the rear of the unit) possible.
8 The lightning ash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un-insulat ed ‘dangerous voltage’ within the product’s enclosure that may be of sufcient magnitude to constitut e a risk of electric shock to persons.
9 azur DacMagic Plus ENGLISH C-Tick mark This product meets the Australian Communications Authority’s Radio communications and EMC requirements. Gost-R mark This product meets R ussian electronic saf ety approv als.
10 V entilation IMPORT ANT – The unit will become warm when in use. Do not stack multiple units on top of each other . Do not place in an enclosed area such as a bookcase or in a cabine t without sufcient ventilation. Ensure tha t small objects do no t f all thr ough an y v entilation grille.
11 azur DacMagic Plus ENGLISH Overloading Do not ov erload wall outlets or extension cords as this can result in a risk of re or electric shock. Overloaded AC outlets, extension cords, fray ed po wer cords, damaged or cracked wire insulation and brok en plugs are dangerous.
12 Limited warranty Cambridge A udio w arrants this pr oduct t o be free fr om def ects in mat erials and workmanship (subject to the terms set for th below). Cambridge Audio will repair or replace (at Cambridge Audio’s option) this product or any defectiv e parts in this product.
13 azur DacMagic Plus ENGLISH Some countries and US states do not allo w the ex clusion or limitation of incidental or consequential damages or implied warranties so the above ex clusions may not apply to you.
14 Rear panel connections +12V DC 2A Use supplied PSU only! www.cambridge-audio.com DacMagic Plus Upsampling DA C Designed and engineered in London, England Digital Outputs S/P DIF Co-axial To slin k Optical S/P DIF Co-axial To slin k Optical S/P DIF Co-axial To slin k Optical USB Audio In Ext.
15 azur DacMagic Plus ENGLISH Digital outputs The digital outputs allow a digital recording device to be connected. These outputs loop or pass- through unprocessed digital audio fr om the selected digital input.
16 USB in A USB B type socket is tted to the DacMagic Plus to enable the playback of audio from a personal computer running either Microsoft Windows or Apple Mac OS X operating systems. Some builds of Linux are also suitable. Note: Alwa ys use a certied cable f or USB Audio, preferably one that displays an ofcial mark.
17 azur DacMagic Plus ENGLISH F ront panel controls Pow er on/of f Switches the unit between on and off. Source Press to select between USB, External (Ext.) or Digital Inputs 1 and 2. The corresponding LED will light up to show which sour ce has been selected.
18 Filter/Phase select Momentarily press to select between three different lter modes: linear phase, minimum phase or steep, see later section f or details.
19 azur DacMagic Plus ENGLISH Use either the unbalanced (RCA/Phono) or balanced (XLR) outputs of the DacMagic Plus. The XLR output is slightly better in quality as it can reject interference and noise in the cable connection and is the preferred option if your amplier features balanced XLR inputs.
20 Connect your digital source to Digital Input 1 or 2. Either S/P DIF co-axial or TOSLINK optical types can be used, each being of equal quality . Important Note: Only connect one co-axial OR optical cable to each digital input. The unit will no t operate if both connections are made (ev en if only one is active).
21 azur DacMagic Plus ENGLISH PC-USB connections Note: Do not turn on the unit until all connections ha ve been made. DacMagic Plus AC Adapt or USB ‘B–A ’ type lead Note: Alwa ys use a certied cable f or USB Audio, preferably one that displays an ofcial mark.
22 Advanced USB audio The DacMagic Plus is both USB 2.0 (Hi-Speed) and USB 1. 1 (Full-speed) USB port compatible. It will also work with the new USB 3.
23 azur DacMagic Plus ENGLISH Use with PCs With the DacMagic Plus switched to USB Audio 1.0 (this is the default setting) the DacMagic Plus will w ork with the native Windows XP , Vista or 7 A udio 1.0 driver (no need to load any new driver) and accept audio up to 2 4-bit/96kHz.
24 Bit perfect transfer – ASIO and W ASAPI Exclusive mode The DacMagic Plus USB interface hardware and software support bit per fect transf er . Whether or not the audio sent to the DacMagic Plus is bitperfect (i.e. not resam pled or mixed etc. by the PC) is actually a function of the pla yback application and the operating systems audio engine.
25 azur DacMagic Plus ENGLISH Digital audio output connections Note: Do not turn on the unit until all connections ha ve been made. Digital Inputs DacMagic Plus Digital recorder AC Adapt or If it is desired to loop out the currently selected digital audio for recor ding on a suitable device (MD, CD-R, e tc.
26 When connected t o your Dacmagic Plus this adapt or allows the DacMagic Plus to receiv e BluetoothA udio (known as Bluetooth Advanced Audio Distribution Prole or A2DP). Contact your dealer for details. The BT100 supports Bluetooth A2DP using either the original SBC encoded f orm or the latest higher quality apt-X encoded f orm.
27 azur DacMagic Plus ENGLISH BT100 controls and connections A. Pairing button/Status LED Button per forms pairing and related functionality. Integrat ed LED indicates BT100 status. B. USB plug Streams high quality USB audio into your DacMagic Plus Ext.
28 First select the EXT . source on DacMagic Plus then follo w the steps below . Pairing T o begin streaming high quality music from your chosen media source it will rst need to be paired with the BT100. A. Inser t BT1 00 int o the Ext. USB port at the back of your DacMagic Plus.
29 azur DacMagic Plus ENGLISH D. On successful pairing, the BT100s LED goes of f for a second or two, then triple ashes quickly . The LED then goes off and only lights up in the future when you are playing audio via Bluet ooth. E. T o play back via a paired Bluetooth device, simply select the BT100 on that device and star t playing.
30 The DacMagic Plus can be sited in two different positions, as shown in the accompanying diagram. It can be placed horizontally by tting the four small individual fee t, or vertically by using the large rubber ‘foot’. Power on the DacMagic Plus using the On/Of f button on the front panel.
31 azur DacMagic Plus ENGLISH Filters The DacMagic Plus DSP has three different Filter functions: Linear Phase, Minimum Phase and Steep. All three lters are highly sophisticated audiophile topologies, optimised specically for audio playback.
32 The Linear Phase lter is a highly regar ded audio lter of f ering low ripple in both the pass and stop bands, and what is known as constant group dela y. Constant group delay means that audio signals of all frequencies are always dela yed by the same amount when passing through the lter .
33 azur DacMagic Plus ENGLISH Minimum Phase Filter -8 0 -6 0 -4 0 -2 0 0 20 -200 -180 -160 -140 -120 -100 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Magnitude (dB) Freq uency response frequency/FS (input.
34 The Minimum Phase lter is another highly regar ded audio lter that offers ev en lower ripple in the pass and stop bands. Unlik e the Linear Phase lter , group dela y is not constant so som.
35 azur DacMagic Plus ENGLISH Steep Filt er -8 0 -6 0 -4 0 -2 0 0 20 -200 -180 -160 -140 -120 -100 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Magnitude (dB) Freq uency response frequency/FS (input sampli.
36 Our Steep lt er is a linear phase lter that has been optimised for st op band attenuation of close-in aliasing images. Here we ha ve traded a little attenuation of the v er y highest frequency response (-2dB at 20kHz) and a little more pre- and post-ringing for a v er y steep att enuation just outside the pass band.
37 azur DacMagic Plus ENGLISH The follo wing table shows the lter stop band att enuation: Linear Phase Minimum Phase Steep Roll-off at 20kHz -0. 1dB -0.
38 T echnical specications D/A converters Dual W olfson WM87 40 2 4bit DACs Digital lter Analog Devices ADSP2 1261 DSP upsampling to 2 4-bit/384kHz Analogue lter 2-Pole Dual Differential Bessel Double Virtual Earth Balanced Frequency response 20Hz to 20kHz (±0.
39 azur DacMagic Plus ENGLISH There is no power Ensure the supplied AC adapt or is connected securely to the PSU sock et on the rear panel. Ensure that the correct mains transformer is being used and that it com plies with the local electrical supply .
Cambridge Audio is a brand of A udio Par tnership Plc Registered Ofce: Gallery Court, Hankey Place London SE1 4BB, United Kingdom Registered in England No.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Cambridge Audio DacMagic Plus è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Cambridge Audio DacMagic Plus - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Cambridge Audio DacMagic Plus imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Cambridge Audio DacMagic Plus ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Cambridge Audio DacMagic Plus, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Cambridge Audio DacMagic Plus.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Cambridge Audio DacMagic Plus. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Cambridge Audio DacMagic Plus insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
