取扱説明書 - Fostex
Contents
1.2. PRINTED IN JAPAN November 2013 8288988000 565643 Fostex 565643 Owner s Manual HP A4 2 ch DAC amp Headphone Amplifier DIC amp HEADPHONEAVLFER POWER 44 1k 48k 88 2k 96k 176 4k 192k HEA4 o o o o o o o FOSTEX 2 8M 5 6M DSD SEL FILTER GAIN OUTPUT SEL o OPTICAL PHONES KHONES zi USB RCA Note If you connect the HP A4 to a Windows computer via USB you must install the dedicated USB Aud
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4. 24 Ev 192000 Hz 45720888 z ra Ij INPUT SEL OUTPUT SEL DAC COPT PHONES DIGITAL IN PHONES USB USB USB OUTPUT RCA
5. aE EB 1 Ss HP A4 35196 0024 512 B 042 545 6111 1X b 6 7 8 9 EJ 5 This guarantee is valid only in Japan 6
6. 2 3 IE DIC e E E p ERLIPSS 3 EE 3 3 Lese 3 ersat raei ae 3 E ord acess 4 5 6 USB Windows DAA sess 6 DSD 6 6 6 7 eee 7 INPUT SEL 8 FILTER 8 GAIN 8 E SES eg UNI lE 8 8 se ei 9 E a at atic centers meee eee es Geese es 9 eee 10
7. lt gt UsB e o 7 n eee ma rugis DSD EXPE PHONES OUTPUT SEL PHONES FILTER POWER USB 44 1k 48k 88 2k 96k 176 4k 192k DSD 2 8M 5 6M PCM
8. DAC USB PCM 24bit 192kHz DSD 5 6MHz USB 24bit 192kHz PCM 5 6MHz DSD FOSTEX Audio Player e HI LO 10dB 0 DA
9. 8 USB USB USB DIGITAL IN USB gt lt Memo gt USB USB DSD DSD Fostex Audio Player y microSD microSD microSD 32Gbyte SDHC C Memo
10. Essi S j Te SS Esa Le _ USB OS EU RES OS Marco c doo US Mac OS Audio MIDI 4 FOSTEX USB AUDIO HP A4 4100 0 Hz 2 ch 16 Ey rs AE h amp B amp t i i Windows 7 P WS
11. DSD 2 8MHz 2 8M DSD 5 6MHz 5 6M DSD eres O DSD DSD PHONES OUTPUT mT gt 8 Q INPUT SEL USB DIGITALIN gt 8 FILTER SEL DAC gt 8 GAIN SEL gt 8 lt gt
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14. USB USB USB HP A4 USB POWER lt Memo gt USB USB FOSTEX Audio Player FOSTEX Audio Player FOSTEX Audio Player OS Memo HP A4 Mac OS 1 LEN Bmse
15. OUTPUT SEL PHONES OUTPUT gt 8 7 7 g SG AGE OUTPUT L R RCA DA OUTPUT SEL CRCA lt Memo gt OUTPUT DIGITAL IN PCM CD raid DSD o Q DIGITAL OUT USB DIGITAL IN PCM S P DIF
16. FILTER DAC Memo PHONE OUTPUT J e PCM 1 LEF PHONES OUT 2 PUT e DSD OHS 1 185kHz 6 6dB 2 85kHz 1 5dB GAIN CHP LO
17. PCM1792A USB Audio Class 2 0 Windows XP Vista 7 8 MacOSX10 6 microSD SDHC USB x1 x4 x 1 x 1 TAR USB DIGITAL IN USB USB USB
18. 10dB Memo GAIN J lt gt POWER 441k 48k 882k 96k 1764k 192k o o o gt FOSTEX 28M seM DSD OUTPUT SEL PHONES RCA e m Lo HI INPUTSEL FILTER Il opricat 1 PHONES ee eet 1 CD ems Ce MADE IN JAPAN ema use R OUTPUT L IN DIGITAL OUT DSD DIGITAL OUT lt Memo gt PCM DIGITAL OUT DIGITAL OUT S PDIF 44 1kHz 48kHz 88 2kHz 96kHz 1 76 4kHz 192kHz USB USB
19. FOSTEX Audio Player DSD FOSTEX Audio Player DSD ASIO DoP lt Memo gt Mac OS DSD DoP DSD PCM HP A4 www fostex jp Mac OS USB
20. PCM 44 1kHz 48kHz 88 2kHz 96kHz 1 76 4kHz 192kHz 16 24 DSD 2 8MHz 5 6MHz DIGITAL IN S PDIF 44 1kHz 48kHz 88 2kHz 96kHz 1 76 4kHz 192kHz 16 24 16 24 H microSD microSD SDHC 32Gbyte x 4 USB x 1 x 1 e USB e 2 5W 113 x 34 x155 mm PHONES 100mW 320 20mW 300O THD 0 049 at 1kHz 320 100mW 20Hz 80kHz 3dB 320 100mW OUTPUT L R RCA 2Vrms
21. www fostex jp microSD USB2 0 USB OS CH Windows XP SP2 Windows XP 64bit Windows XP DSD ASIO Windows Vista Windows 7 Windows 8 Mac OS X 10 6 Mac OS DSD DoP USB Windows gt Windows OS USB USB Audio Class 2 0 DSD
22. 2 eoo MN POVKEMDTSRMERR FOSTEX USD DC At US BRUCK MORE nsz A oss 3 FOSTEX USB AUDIO HP A4 eoo a YOYKEMDSSRMERR EA EE FOSTEX USB AUDIO HP A DE san 9 oss Windows 7 1 2 3 4 FOSTEX USB AUDIO HP A4 OK Ln mE Jok
23. Fostex uu HP A4 2ch DA amp HPA4 POWER 44 1k 48k 88 2k 96k 176 4k 192k F o o o o o o o o 2 8M 5 6M DSD DAC amp HEADPHONEAMPUFIER INPUT SEL FILTER GAIN OUTPUT SEL I1 oPTICAL 1 LO PHONES PRONES m USB 2 HI RCA lt gt HP A4 Windows OS USB USB Audio Class 2 0 www fostex jp Mac OS AN
24. DIGITAL IN connector Connector type TOSLINK optical Format S PDIF Supporting sampling frequency 44 1 kHz 48 kHz 88 2 kHz 96 kHz 176 4 kHz 192 kHz Supporting quantization bit width 16 bit 24 bit Outputs PHONES connector Connector type 1 4 inch stereo jack Maximum output 100 mW 32 ohms load 20 mW 300 ohms load Applicable load impedance 16 ohms or more THD 0 0496 or less at 1 kHz 32 ohm load 100 mW output Frequency response 20 Hz to 80 kHz 3 dB 82 ohm load 100 mW output OUTPUT L R connectors Connector type RCA pin jack Nominal output level 2 Vrms 0 dBFS Applicable load impedance 10 kohms or more THD 0 0196 or less at 1 kHz Frequency response 20 Hz to 80 kHz 3 dB at nominal level E 9 Specifications and appearance are subject to change without notice for product improvement Windows is a registered trademark of Microsoft Corporation in the United States and other coun tries Mac and Mac OS are trademarks of Apple Inc registered in the U S and other countries DSD is a trademark All other trademarks are the property of their re spective owners Declaration of EC Directive This equipment is compatible with the EMC Directive 2004 108 EC Directive on approximation of member nation s ordinance concerning the electromagnetic compatibility and with the Low Voltage Directive 73 23 EEC Directiv
25. 24 Ev 192000 Hz 45520888 gt 200 Ivi D OK Cantr sare Computer sound output volume By setting the sound output volume level at maxi mum you can get the optimum sound quality Note that with Mac OS the output level is fixed to the maximum E 7 HP A4 settings INPUT SEL switch setting OUTPUT SEL switch setting This switch selects the audio input source At the down USB position the unit plays back a USB audio signal from a USB connected computer At the up OPT position the unit plays back a signal from the DIGITAL IN connector lt Notes gt The unit cannot input signals from the USB and DIGITAL IN connectors simulta neously FILTER switch setting This switch selects the digital filter characteristics of the DAC Depending on the format of an audio source it works differently With a PCM audio source At the 1 position a slow roll off digital filter is applied At the 2 position a sharp roll off digital filter is applied With a DSD audio source At the 1 position a digital filter with high cut off frequency 185 kHz gain 6 6 dB is
26. amplifier player mm Computer HCE Os lt Note gt When a PCM source is input the DIGITAL OUT connector directly outputs the input signal When a DSD source is input no signal is output from the DIGITAL OUT connector Headphones POWER 441k 48k 88 2k 98k 1764k 192k DSD oO 0 0 oO Fostex D oPTICAL 1 PHONES C PHONES zio USB 2 HI RCA S 28M 56M DSD OUTPUT SEL INPUTSEL FILTER GAIN N DIGITAL OUT Specifications Inputs DIGITAL OUT connector Connector type TOSLINK optical Format S PDIF e Supporting sampling frequency 44 1 kHz 48 kHz 88 2 kHz 96 kHz 176 4 kHz 192 kHz Supporting quantization bit width 16 bit 24 bit e USB connector Connector type TOSLINK optical Interface USB 2 0 high speed Supporting sampling frequency PCM 44 1 kHz 48 KHz 88 2 kHz 96 kHz 176 4 kHz 192 kHz DSD 2 8 MHz 5 6 MHz Supporting quantization bit width 16 bit 24 bit General microSD card slot Format FAT32 Usable card microSDHC card 4GB to 32GB Supplied accessories rubber feet x 4 USB cable x 1 Owner s manual x 1 Power requirement DC 5 V supplied from the USB port Power consumption 2 5 W External dimensions 113 W x 34 H excluding rubber feet x 155 D including protrusions mm Weight 500 g
27. which can be used for future upgrade Note that the unit cannot playback audio data on a microSD card Supplied accessories The following are supplied with the HP A4 e USB cable x 1 e Rubber feet x 4 Owner s manual this manual e Safety Information for Fostex product using electricity multilingual After purchasing the HP A4 check all accessories are included in the package The four rubber feet should be attached on the bottom of the unit by yourself About power supply The HP A4 runs on USB bus power Therefore when you use the optical DIGITAL IN connector as the input source you have to connect the USB connector to a device computer USB mobile pow er supply etc that can provide USB bus power to the unit and turn on the device Maintenance If the unit becomes dirty wipe it with a soft dry cloth or a soft cloth dipped in water with neutral detergent Do not use volatile chemicals such as benzine or thinner Otherwise the panel may be damaged lt Caution gt For your safety disconnect the USB power before cleaning Names and functions Front panel o 0 SEL FILTER NN Om CA PE 98 HI RCA PHONES connector 1 4 stereo phone jack This connector is used to connect to stereo head phones It is active when the OUTPUT SEL switch on the front panel is set to the up PHONES position PHONES POWER indicator This indi
28. 0dBFS 10kO THD 0 01 at 1kHz 20Hz 80kHz 3dB 16O 500g Windows Microsoft Corporation Mac Mac OS Apple Inc DSD e 1 EH
29. applied At the 2 position a digital filter with low cut off frequency 85 kHz gain 1 5 dB is applied GAIN SEL switch setting This switch selects the gain of the headphone out put amplifier At the HI position the gain is 10 dB higher than the gain at the LO position lt Caution gt Turn the volume control knob all the way toward the left before you operate the switch E 8 This switch selects the analog output destination between the PHONES and OUTPUT connectors To monitor audio from headphones that is con nected to the PHONES connector set it to the PHONE position To monitor audio from an amplifier speaker sys tem that is connected to the OUTPUT connec tors set it to RCA position Note You cannot output the signal from both of the PHONES and DUTPUT connec tors simultaneously You can adjusts the analog output level of PHONES and OUTPUT connectors using the volume control knob Volume level setting lt Notes gt To get the optimum sound quality it is rec ommended to set the sound output volume of your computer to maximum and adjust the volume using the volume control knob of the HP A4 Note that with Mac OS the sound output level is fixed to the maximum The volume control knob does not affect the output level of the DIGITAL OUT connector J M Connection example Audio CD
30. in the in structions contained in this manual meets FCC and ICES 008 requirements Changes or modifications not expressly approved by Fostex Company for compli ance could void the user s authority to operate the equipment DO NOT MODIFY THIS PRODUCT 2 IMPORTANT In order to comply with FCC and ICES 003 require ments use high quality shielded cables for connection to accessories and or another products If any cables are supplied with this product they MUST be used Follow all installation instructions Failure to do so could void your FCC ICES 003 authorization to use this product in the USA Canada 3 NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful in terference in a residential installation This equipment generates uses and can radiate radio frequency en ergy and if not installed and used in accordance with instructions may cause harmful interference to radio communications However there is no guarantee that E 2 interference will not occur in a particular installation If this equipment does cause harmful interference to ra dio or television reception which can be determined by turning the equipment off and on the user is encour aged to correct the interference by one or more of the following measures Reorient or relocate the receiv
31. sound E 7 Computer sound output volume E 7 HP A4 settings INPUT SEL switch setting E 8 FILTER switch setting E 8 GAIN switch setting E 8 OUTPUT SEL switch setting Volume level setting E 8 Connection example E 9 Specifications 0 E 9 Declaration of EC Directive E 10 Fostex distributors list in Europe E 10 Introduction Thank you very much for purchasing the Fostex product To ensure the best performance read this manual thoroughly before using the unit Keep this manual handy for future reference E 3 The Fostex HP A4 is the high performance DA con verter with a headphone amplifier The unit receives a digital audio signal from the USB connector or the optical digital connector and converts it to an analog signal which is fed from the analog line output connectors as well as the headphones output connectors The unit can play back PCM audio up to 24 bit 192 kHz PCM source as well as DSD audio up to 5 6 MHz DSD source natively e Features a high quality DAC PCM17924 e Supports asynchronous mode controlled by a crystal oscillator Powered by USB Supports 24 bit 192 kHz PCM playback as well as 5 6 MHz DSD native playback Note that to play back DSD audio an appropriate DSD audio playback software application is re quired on your computer Equipped with a microSD SDHO card drive
32. 1 2 3 4 1 2 3 4
33. 4323230 FAX 441 1 4326558 K gt ME SCV London D 40 Chigwell Lane Oakwood Hill Industrial Estate Loughton Essex IG10 3NY U K TEL 44 20 8418 0778 FAX 44 20 8418 0624 1 1 109 Tsutsujigaoka Akishima City Tokyo Japan 196 8550 Fost FOSTEX CO E 10 PRINTED IN JAPAN November 2013 8288988000 565643
34. See HP A4 settings on page E 8 Caution Turn the volume control knob all the way toward the left before you operate the switch OUTPUT SEL switch Selects the analog output destination between the PHONES and OUTPUT connectors See HP A4 settings on page E 8 Names and functions Rear panel o MIC AGE IN DIGITAL OUT uss mie SD 0 06 6 6 MADE IN JAPAN D 96 R OUTPUT L OUTPUT L and R connectors RCA pin jacks These connectors output an analog audio signal after the D A converter They are used to connect to an audio amplifier etc They are active when the OUTPUT SEL switch on the front panel is set to the down RCA position lt Note gt You can adjust the audio output level from the OUTPUT connectors using the volume control knob DIGITAL IN connector optical This connector inputs PCM digital audio It is used to connect to a digital audio source de vice such as a CD player Note This connector does not accept DSD audio D DIGITAL OUT connector optical This connector outputs PCM digital audio received from the USB or DIGITAL IN connector in S PDIF format When the unit receives DSD audio no sig nal is output It is used to connect to a digital audio device E 5 B USB connector When you play back USB audio co
35. cator is illuminated in green when the USB bus power is properly supplied to the unit Input indicators 44 1k 48k 88 2k 96k 176 4k 192k DSD 2 8M 5 6M The appropriate indicator is illuminated in red de pending on the input audio source When no signal is input or when a signal with an unsupported audio format is input no input indica tor is illuminated With a PCM audio source The indicator corresponding to the sampling fre quency of the input signal is illuminated With a DSD audio source When the sampling frequency of the input signal is 2 8 MHz the 44 1k and DSD indicators are illuminated When the sampling frequency of the input signal is 5 6 MHz the 88 2k and DSD indicators are illuminated Note Immediately after the power is sup D plied to the unit no input indicator is illumi nated J E 4 DSD indicator This indicator is illuminated in green when the unit plays back DSD audio Volume control knob Adjusts the analog output level of PHONES and OUTPUT connectors See HP A4 settings on page E 8 INPUT SEL switch Selects the digital input source between the USB and DIGITAL IN connectors See HP A4 settings on page E 8 FILTER SEL switch Selects the digital filter characteristics of the DAC See HP A4 settings on page E 8 GAIN SEL switch Selects the gain of the headphone output amplifier
36. ct FOSTEX USB AUDIO HP A4 and click the Set Default button followed by the OK button CEZ es mE Souk menie c v 70 740 ok ee 0 RAS Detail settings for sound By making sound output settings on a computer appropriately you may be able to monitor the sound better Depending on a computer OS the setting window differs The following briefly introduces the setting window for each OS See the computer manual or help screen for details Mac OS The Audio MIDI setting utility in the Utility folder in the Application folder allows you to select the sampling rate and bit rate Audio Devices hone amp FOSTEX USB AUDIO Hp A4 Clock source Default 2 mo FOSTEX USB AUDIO HP A4 Source Default Format 44100 0 Hz 2ch 16bit Integer Ch volume Vaue ds Mu zie ean Sete e Windows 7 Clicking the Property button on the Sound win dow opens the window where you can select the sampling rate etc E 5 BH aEe 5 070 3 WES
37. e on approximation of member nation s ordinance concerning electric equipment designed to be used within the specified voltage range The Affect of Immunity on This Equipment equipment are as shown below The affect of the European Specification EN61000 6 1 coexistence of electromagnetic waves common immunity specification on this noise in some cases In the electrical fast transient burst requirements surge conducted disturbances by radio frequency fields power frequency magnetic field radiate electromagnetic field requirements and static electricity discharging environment this could be affected by generation of FOSTEX DISTRIBUTORS LIST IN EUROPE Including non EU countries as of September 2013 lt AUSTRIA gt NAME Mega Audio GmbH ADD Stromberger Str 32 D 55411 Bingen Germany TEL 49 6721 94330 FAX 49 6721 32046 lt CZECHO gt NAME Praha Music Center spol s r o ADD Ocelarska 937 39 Praha 9 190 00 Czecho TEL 420 226 011 111 FAX 420 226 011 112 lt DENMARK gt NAME SC Sound A S ADD Dalgas Alle 15 DK 6600 Vejen Denmark TEL 45 4399 8877 FAX 45 4399 8077 lt FINLAND gt NAME Noretron Oy Audio ADD P O Box 22 FIN 02631 Espoo Finland TEL 358 9 5259330 FAX 358 9 52593352 lt FRANCE gt NAME Hamy Sound ADD 28 Rue Edith Cavell 92400 Courvevoie France TEL 33 1 4788 4702 FAX 33 1 4789 4872 lt GERMANY gt NAME Mega Aud
38. ing antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit dif ferent from that to which the receiver is connected Consult the dealer or an experienced radio TV techni cian for help 4 Compliance with Part 15 of FCC Rules and Cana dian ICES 003 This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that many cause undesired op eration This Class B digital apparatus complies with Canadian ICES 008 Cet appareil num rique de la classe B est conforme la norme NMB 008 du Canada Table of contents Safety instructions LL E 2 FCC U S A amp ICES 003 Canada Information E 2 Table of contents slsusu E 3 Introductions a pace E 3 Overview ioa a er e xc ien e E 3 Supplied accessories E 3 About power supply E 3 Maintenance 2 E 3 Names and functions Front panel 0 05 E 4 Rear panel Le E 5 Computer connection and settings Computer requirement E 6 Installing the USB driver Windows only a an aaan E 6 DSD audio playback software applications siaa rs E 6 Connecting acomputer E 6 Selecting the sound output destination ar E 6 Detail settings for
39. io Class 2 0 driver which can be down loaded from the Fostex website www fostex com If you use a Mac computer you do not need to download a driver RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS a TO RAIN OR MOISTURE The lightning flash with arrowhead sym bol within an equilateral triangle is in tended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilater al triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance SAFETY INSTRUCTIONS Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s in structions Do not install near any heat sources such as ra diators heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the p
40. io GmbH ADD Stromberger Str 32 D 55411 Bingen Germany TEL 49 6721 94330 FAX 49 6721 32046 lt GREECE gt NAME Bon Studio S A ADD 6 Zaimi Street Exarchia 106 83 Athens Greece TEL 30 210 3809 605 606 607 608 FAX 30 210 3845 755 210 3827 868 lt HUNGARY gt NAME ATEC Hungary Kft ADD H 110 Budapest Fogado u 3 Hungary TEL 36 1 4319005 FAX 36 1 4319006 lt ITALY gt NAME Backline S u r l D T N Al D P Al D S Al DI A A A ADZA d mos m GSN PZA m D Via Dell Aprica 16 20158 Milano Italy EL 39 02 69015709 FAX 39 02 69015645 HE NETHERLANDS gt AME IEMKE ROOS AUDIO B V D D Kuiperbergweg 20 1101 AG Amsterdam The Netherlands EL 31 20 697 2121 FAX 31 20 697 4201 IORWAY gt ME Siv Ing Benum AS D P O Box 145 Vinderen 0319 Oslo Norway EL 47 2213 9900 FAX 47 2214 8259 OLAND gt ME Mega Music Spolka z 0 0 D Ul Lesna 15 81 876 Sopot Poland EL 448 58 551 18 82 FAX 48 58 551 18 72 PAIN gt ME Letusa S A D C Laguna 10 28923 Alcorcon Madrid Spain L 34 91 4862800 91 4470898 FAX 34 91 6414597 WEDEN gt ME Benum Nordic AS D Aldermansvagen 17 171 48 Solna Sweden L 446 8 207710 WITZERLAND gt ME Audio Bauer Pro AG D Bernerstrasse Nord 182 CH 8064 Zurich Switzerland L 441 1
41. nnect a com puter to this connector using the supplied USB cable When you play back audio received from the DIGITAL IN connector connect a device that can supply USB bus power such as a computer USB mobile power supply etc to this connector Notes To get stable power supply directly connect the USB cable without using a USB hub To receive digital audio from your computer via USB you should make audio output set ting of the computer appropriately Also note that to play back DSD audio an appropriate DSD audio playback software application is required on your computer We highly recommend to use the Fostex Audio Player application X PP D microSD slot When you upgrade the HP A4 software in the fu ture insert a microSDHC card that contains a soft ware upgrade file to this slot You can only use a microSDHC card 32GB or less Note You can download the software upgrade file together with the Update Notes and Manual Supplement from the Fostex website www fostex com The unit cannot playback audio data on a microSD card Computer connection and settings When you use a computer as the input source of the unit you need to make the following prepara tions Computer requirements Before you operate an audio playback soft ware application it is recommended to turn down the HP A4 audio output volume t is recommended that tracks in the playli
42. olarized or grounding type plug A polarized plug has two blades with one wider than the other A ground ing type plug has two blades and a third ground ing prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience recep AGIALONS tacles and the point where they exit from the ap paratus Only use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the appa ratus When a cart is used use cau tion when moving the cart apparatus combination to avoid injury from tip over Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or ob jects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 Excessive sound pressure from earphones and headphones can cause hearing loss a 29 zi SE FCC U S A amp ICES 003 Canada INFORMATION 1 IMPORTANT NOTICE This product when installed as indicated
43. or reconnect the unit check that the sound output destination is correctly set DSD audio playback software application To playback DSD audio an appropriate DSD audio playback software application must be installed on your computer The unit supports both ASIO and DoP so a DSD audio playback software application that supports either ASIO or DoP can be used lt NoteS gt f an audio playback software application sends illegal data to the unit audio may not be played back With some of audio playback software ap plications the beginning of a song may be muted when you switch between DSD and PCM E 6 Mac OS 1 Select System preferences from the Apple drop down menu eon System Preferences Flach Payer Computer connection and settings 2 Select Sound to open the Sound window and select Output tab at the top of the win dow eon Sound Em Sound Effects ISTE Input Select a device for sound output Name Type ieskers Built in FOSTEX USB AUDIO HP A4 usa Settings for the selected device box Settings for the selected device The selected device has no output controls 4 we Output volume a M show volume in menu bar Windows 7 1 Select Hardware and Sound from the Control panel 2 Select Sound to open the Sound window 3 Select Playback tab 4 Sele
44. st of an audio playback software application have the same sampling rate You can connect a computer that satisfies the fol lowing requirements e A USB 2 0 or higher port is provided OS Windows XP SP2 or later You cannot use Windows XP 64 bit version The ASIO type DSD playback is only possible on Windows XP Windows Vista Windows 7 Windows 8 Mac OS X 10 6 or later The DoP type DSD playback is only possible on Mac OS Connecting a computer Connect the HP A4 to your computer using the supplied USB cable After making connection the computer recognizes the unit and the POWER indicator of the unit is lit in green showing that the USB bus power is sup plied to the unit Notes To get stable power supply connect the USB cable directly to a USB port of your computer The use of USB hubs is not recommended Installing the USB driver Windows only Before you connect the unit via USB to a Windows computer the dedicated USB Audio Class 2 0 driver must be installed to the computer You can download the driver software from the Fostex website www fostex com When you connect the unit via USB to a Macin tosh computer you do not need to install a driver software The following describes how to set the HP A4 as the device for sound output of a computer for each OS Setting the sound output destination lt Note gt When you reboot your computer
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