Alto HPA4 Скачать руководство пользователя страница 2

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SAFETY RELATED 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 Terminal

AC mains (Alternating Current)

Hazardous Live Terminal

ON:

Denotes the product is turned on.

This symbol, wherever used, alerts you to impo-
rtant operating and maintenance instructions.
Please read.

OFF:

Denotes the product is turned off.

WARNING

Describes precautions that should be observed to
prevent the possibility of death or injury to the user.

CAUTION

Describes precautions that should be observed to
prevent damage to the product.

Power Supply

Ensure that the mains source voltage (AC outlet)
matches the voltage rating of the product. Failure
to do so could result in damage to the product and
possibly the user.

Unplug the product before electrical storms occur
and when unused for long periods of time to reduce
the risk of electric shock or fire.

External Connection

Always use proper ready-made insulated mains
cabling (power cord). Failure to do so could result
in shock/death or fire. If in doubt, seek advice from
a registered electrician.

Do Not Remove Any Covers

Within the product are areas where high voltages
may present. To reduce the risk of electric shock do
not remove any covers unless the AC mains power
cord is removed.

Covers should be removed by qualified service
personnel only.

No user serviceable parts inside.

Fuse

To prevent fire and damage to the product, use only

the recommended fuse type as indicated in this
manual. Do not short-circuit the fuse holder. Before
replacing the fuse, make sure that the product is
OFF and disconnected from the AC outlet.

Protective Ground

Before turning the product ON, make sure that it is
connected to Ground. This is to prevent the risk of
electric shock.

Never cut internal or external Ground wires. Likewise,
never remove Ground wiring from the Protective
Ground Terminal.

Operating Conditions

Always install in accordance with the manufacturer's
instructions.

To avoid the risk of electric shock and damage, do
not subject this product to any liquid/rain or moisture.
Do not use this product when in close proximity to
water.

Do not install this product near any direct heat source.

Do not block areas of ventilation. Failure to do so
could result in fire.

Keep product away from naked flames.

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions

Follow all instructions

Keep these instructions. Do not discard.

Heed all warnings.

Only use attachments/accessories specified by the
manufacturer.

Power Cord and Plug

Do not tamper with the power cord or plug. These are
designed for your safety.

Do not remove Ground connections!

If the plug does not fit your AC outlet seek advice from
a qualified electrician.

Protect the power cord and plug from any physical
stress to avoid risk of electric shock.

Do not place heavy objects on the power cord. This
could cause electric shock or fire.

Cleaning

When required, either blow off dust from the product
or use a dry cloth.

Do not use any solvents such as Benzol or Alcohol.
For safety, keep product clean and free from dust.

Servicing

Refer all servicing to qualified service personnel only.

Do not perform any servicing other than those instruc-
tions contained within the User's Manual.

WARNING

Содержание HPA4

Страница 1: ...User s Manual LTO R www altoproaudio com Version 2 0 February 2003 English HPA4 4 Channel HEADPHONE AMPLIFIER ...

Страница 2: ...y the recommended fuse type as indicated in this manual Do not short circuit the fuse holder Before replacing the fuse make sure that the product is OFF and disconnected from the AC outlet Protective Ground Before turning the product ON make sure that it is connected to Ground This is to prevent the risk of electric shock Never cut internal or external Ground wires Likewise never remove Ground wir...

Страница 3: ...on Thank you very much LTO AUDIO TEAM DSP Digital sound processor and a large range of state of the art algorithms which have been developed by our Because we are convinced you are the most important member of LTO AUDIO TEAM and the one confirming the quality of our job we d like to share with you our work and our dreams pay attention to your suggestions and your Following this idea we create our ...

Страница 4: ...TION 7 4 1 Mains Connection 4 2 Audio Connection a Wiring Configuration b In Line Connection 4 3 Rack Mounting 5 1 Use the HPA4 as a Headphone Amplifier 5 2 Use the HPA4 as Independent Power Amplifiers 5 3 The HPA4 in Studio Application 5 4 The HPA4 in Mono Stereo Application 5 APPLICATION 8 6 TECHNICAL SPECIFICATIONS 11 7 WARRANTY 12 ...

Страница 5: ...tputs for chaining further HPA4 headphone amplifiers Maximum audio quality even at high volume levels Exceptionally rugged construction ensures long life and durability Universal and professional headphone amplification system for studio and stage application Manufactured under QS9000 certified quality system Excluding 1 knob control 1 jack and 8 LEDs for the common main section the LTO HPA4 4 Cha...

Страница 6: ...onal mode Press the Mode Switch 7 for Mono application this LED lights up 9 Headphone Out Output In parallel with the Headphone Output on the rear panel this 1 4 TRS phone jack is also used to output the signal of the individual channel 5 10 Balanced Control This control is used to set the proportion between the signal coming from Aux In Input and Main Direct In Input 11 Output Gain Control This c...

Страница 7: ... fuse protecting the power supply but this operation must be performed by a qualified Engineer 220 240V 110 120V 110 120V 220 240V MAIN INPUT LEFT MAIN INPUT RIGHT MAIN OUTPUT RIGHT MAIN OUTPUT LEFT HEADPHONE OUT 4 HEADPHONE OUT 3 HEADPHONE OUT 2 HEADPHONE OUT 1 TIP L CHANNEL RING R CHANNEL MIN LOAD 100OHMS AC INPUT 95 120V 210 240V 60 50Hz Rated Power Consumption 40W FUSE 210 240V T200mAL 250VAC ...

Страница 8: ...fuse holder at the AC power connection socket Do not insert power cable into the unit until voltage has been correctly set Do not plug the power cable into AC power until voltage has been correctly set The mains connection of the LTO HPA4 4 Channel Headphone Amplifier is made by using the enclosed mains cable and a standard IEC receptacle It meets all of the international safety certification requ...

Страница 9: ... 3 TIP SLEEVE TIP SLEEVE TIP RING SLEEVE TIP RING SLEEVE 1 2 3 2 1 3 2 1 3 Tip Ring Sleeve 1 2 3 Tip Sleeve 1 2 3 TIP RING SLEEVE TIP SLEEVE 1 2 3 1 2 3 SLEEVE TIP SLEEVE RING TIP dealer The HPA4 4 Channel Headphone Amplifier fits into one standard 19 rack unit of space Please allow at least an additional 4 depth for the connectors on the rear panel Be sure that there is enough air space around th...

Страница 10: ...IN 2 4 5 6 1 0 3 CHANNEL 2 CHANNEL 3 CHANNEL 4 ON OFF POWER MUTE MUTE MUTE MUTE MAIN IN MAIN IN MAIN IN AUX BALANCE MAIN IN 3 0 12 CLIP 18 12 6 6 0 CLIP 18 12 6 6 18 18 18 12 18 18 R LTO INPUT LEVEL dBu DIRECT IN INPUT GAIN OUTPUT LEVEL dBu MUTE R L 3 MONO 2 4 5 6 1 0 4 Channel HEADPHONE AMPLIFIER HPA4 0 15 15 CHANNEL 1 BASS HEADPHONE OUT TREBLE OUTPUT GAIN 0 AUX IN 15 15 2 4 5 6 1 0 3 0 12 CLIP O...

Страница 11: ...5 15 2 4 5 6 1 0 3 0 12 CLIP OUTPUT LEVEL dBu 18 12 6 6 MUTE R L MONO AUX BALANCE OUTPUT GAIN 2 4 5 6 1 0 0 15 15 BASS HEADPHONE OUT TREBLE 0 AUX IN 15 15 0 12 CLIP OUTPUT LEVEL dBu 18 12 6 6 MUTE R L MONO AUX BALANCE OUTPUT GAIN 2 4 5 6 1 0 3 MAIN SECTION 0 15 15 BASS HEADPHONE OUT TREBLE 0 AUX IN 15 15 0 12 CLIP OUTPUT LEVEL dBu 18 12 6 6 MUTE R L MONO 0 15 15 BASS HEADPHONE OUT TREBLE 0 AUX IN ...

Страница 12: ... typ 4 dBu 1kHz Gain 1 21dBm 100Ohms variable mix between aux and main signal variable mutes the right signal of the respective channel mutes the left signal of the respective channel switches channel to mono 40 W 2 9kg 6 39lb 8 digit LED display 18 12 6 0 6 12 18dBu CLIP POWER AMPLIFIER FUNCTION CONTROLS FUNCTION SWI CHES T POWER SUPPLY PHYSICAL INDICATORS 483 W D H mm 19 8 54 1 7 217 44 Max outp...

Страница 13: ...d LTO of 1 year from the purchase date if you have completed the Warranty Registration Card in time 3 3 During the warranty service may repair or replace this product at its own option at no charge to you for LTO parts or for labor in accordance with the right side of this limited warranty 3 4 This warranty does not apply to the damages to this product that occurred as the following conditions Nor...

Страница 14: ...ll rights reserved to ALTO Mobile Due to continued development in response to customer feedback product features specifications and or internal external design may be changed without prior notice No photocopying translation or reproduction of any part of this user manual is allowed without prior written permission Copyright 2004 Seikaku Technical Group Limited c NF01185 1 0 ...

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