Alto HPA6 manual

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A good user manual

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First and foremost, an user manual of Alto HPA6 should contain:
- informations concerning technical data of Alto HPA6
- name of the manufacturer and a year of construction of the Alto HPA6 item
- rules of operation, control and maintenance of the Alto HPA6 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Alto HPA6 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Alto HPA6, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Alto service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Alto HPA6.

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Table of contents for the manual

  • Page 1

    User's Manual LTO R www .altoproaudio.com V ersion 2.0 Dec. 2002 English 6- Channel HEADPHONE AMPLIFIER HP A6[...]

  • Page 2

    1 SAFETY RELA TED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol, wherever used, alerts you to the pre- sence of un-insulated and dangerous voltages with- in the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death. Protective Ground T erminal AC mains (Alternating Current) H[...]

  • Page 3

    2 Dear Customer: PREF ACE For our L T O AUDIO TEAM, music and sound are more than a job...are first of all passion and let us say ...our obsession! We have been designing professional audio products for a long time in cooperation with some of the major brands in the world in the audio field. Thank you very much. L T O AUDIO TEAM L T O AUDIO TEAM jo[...]

  • Page 4

    T ABLE OF CONTENTS 3 1. INTRODUCTION .....................................................................................................................................4 2. FEA TURE LIST .......................................................................................................................................4 3. CONTROL ELEMENTS ....[...]

  • Page 5

    4 1. INTRODUCTION Thank you very much for expressing your confidence in L T O products by purchasing our HP A6 6-Channel Head- phone Amplifier . With the HP A6 you have acquired an extremely musical and flexible 6-Channel Headphone Amplifier . Featuring six stereo headphone amplifiers, The L TO HP A6 6-Channel Headphone Amplifier performs a number [...]

  • Page 6

    5 3.2 The Rear Panel 22 19 21 18 20 17 16 15 14 PUSH 21 3 NEW TIDE PUSH 21 3 NEW TIDE MAIN INPUT LEFT MAIN INPUT RIGHT MAIN OUTPUT RIGHT MAIN OUTPUT LEFT HEADPHONE OUT 6 HEADPHONE OUT 5 HEADPHONE OUT 4 HEADPHONE OUT 3 HEADPHONE OUT 2 HEADPHONE OUT 1 TIP: L- CHANNEL RING: R- CHANNEL MIN. LOAD 100OHMS A101 AC INPUT 95-120V 60Hz or 210-240V 50Hz Rated[...]

  • Page 7

    6 17. Headphone Out1 In Parallel with the Headphone Out on the front panel (for CH 1), these are the headphone outputs of Channel 1. 18. Headphone Out2 In Parallel with the Headphone Out on the front panel (for CHl 2), these are the headphone outputs of Channel 2. 19. Headphone Out3 In Parallel with the Headphone Out on the front panel (for CH 3), [...]

  • Page 8

    4. INST ALLA TION & ONNECTION C 4.1 Mains Connection This is a dual voltage unit. Please ensure that the L T O HP A6 6-Channel Headphone Amplifier is set to the correct supply voltage before plugging the power cord into the wall outlet, use the same fuse as marked on the fuse holder at the AC power connection socket. Do not insert power cord in[...]

  • Page 9

    8 4.3 Rack ounting M The most secure mounting is on a universal rack shelf available from various rack manufactures or your music perature devices such as power amplifiers etc. to avoid overheating. 5. APPLICA TION be able to fully exploit the HP A6 6-Channel Headphone Amplifier . 5.1 Use the HP A6 as a Headphone Amplifier This is the basic applica[...]

  • Page 10

    9 program source Direct in Headphone output1 A U Xi n1 A U Xi n2 A U Xi n3 A U Xi n4 A U Xi n5 A U Xi n6 24 18 12 60 6 12 18 INPUT LEVEL(dBu) MAIN SECTION HP A6 6-Channel HEADPHONE AMPLIFIER 24 0 12 CLIP OUTPUT LEVEL(dBu) CHANNEL 1 24 0 12 CLIP OUTPUT LEVEL(dBu) CHANNEL 2 24 0 12 CLIP OUTPUT LEVEL(dBu) CHANNEL 3 24 0 12 CLIP OUTPUT LEVEL(dBu) CHANN[...]

  • Page 11

    10 24 24 18 18 12 12 6 6 0 6 6 12 12 18 18 INPUT LEVEL(dBu) INPUT LEVEL(dBu) MAIN SECTION MAIN SECTION HP A6 6-Channel HEADPHONE AMPLIFIER 24 24 0 12 12 CLIP CLIP OUTPUT LEVEL(dBu) OUTPUT LEVEL(dBu) CHANNEL 1 24 24 0 12 12 CLIP OUTPUT LEVEL(dBu) OUTPUT LEVEL(dBu) CHANNEL 2 24 24 0 12 12 CLIP OUTPUT LEVEL(dBu) CHANNEL 3 24 24 0 12 12 CLIP OUTPUT LEV[...]

  • Page 12

    11 AUDIO INPUT MAIN input Connectors T ype Impedance Max.input level CMRR AUX IN and DIRECT IN input Connectors T ype Impedance Max.input level CMRR AUDIO OUTPUT Connectors T ype Impedance Max. output level SYSTEM SPECIFICA TIONS Frequency response S/N THD X R and 1/4" jack L RF filtered, servo balanced input 50 kOhms balanced, 25 kOhms unbala[...]

  • Page 13

    12 7. W ARRANTY 1. W ARRANTY REGISTRA TION CARD T o obtain W arranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this W arranty Registration Card gives the manufacturer a better understanding of the sales status, so as to purport a [...]

  • Page 14

    SEKAKU ELECTRON IND. CO., L TD NO.1, LANE 17, SEC. 2, HAN SHI WEST ROAD, T AICHUNG, 401 T AIW AN http://www .altoproaudio.com T el:886-4-22313737 email: alto@altoproaudio.com Fax:886-4-22346757 All rights reserved to AL TO. All features and content might be changed without prior notice. Any photocopy , translation, or reproduction of part of this m[...]