Hill Audio CHP-400 Manuale utente
- Categoria
- Apparecchiature musicali supplementari
- Tipo
- Manuale utente
RevA 06-2017
Welcome
Thank you for choosing Hill Audio for your sound system. To make sure that this product meets your
expectations and provides long-term, reliable performance, please read and follow this instruction
manual carefully.
Important safety instructions
Read these instructions and all markings on the product. Keep these instructions.
Heed all warnings and instructions, both in this manual and on the product.
Clean only with a dry cloth. Unplug from AC supply before cleaning.
Do not use this product near water and avoid any exposure to water.
Before connecting this product to any AC supply, make sure to check whether the AC mains vol-
tage and frequency match the indication on the product and its packaging.
Only connect this product to an AC supply with sufficient power handling, protective earth con-
nection, ground-fault (earth-fault) protection and overload protection.
Disconnect the product from the AC supply during thunderstorms or longer periods of being
unused.
Make sure any heat sink or other cooling surface, or any air convection slot , is exposed sufficiently
to free air circulation and is not blocked.
Do not operate this product in environmental temperatures exceeding 35 degrees Celsius and/or
85% relative humidity.
Position the product in a safe and stable place for operation, out of reach of unauthorized persons.
Make sure any cable connections to and from the product are neither subject to potentially des-
tructive mechanical impact nor present any risk of stumbling or other accident risk to people.
Audio equipment may generate sound pressure levels sufficient to cause permanent hearing
damage to persons. Always start up at low volume settings and avoid prolonged exposure to sound
pressure levels exceeding 90 dB.
Do not open this product for service purposes. There are no user-serviceable parts inside.
Warranty will be void in any case of unauthorized service by the user or other not authorized persons.
Take any precaution required by local law, applicable regulations or good business practice to avoid
injury of people or material damage by use of this product.
Explanation of symbols used in this manual and on the product:
DANGER!
Safety hazard.
Risk of injury or death.
WARNING!
Fire hazard.
WARNING!
Hazardous voltage.
Risk of severe or fatal
electric shock.
ATTENTION!
Read manual
before installation
and operation.
Manual Language
UK This user manual is written in English. For other languages, visit www.hill-audio.com
FR Ce guide est écrit en anglais. Pour les autres langues, visitez: www.hill-audio.com
DE Diese Anleitung ist in Englisch verfasst. Für andere Sprachen: www.hill-audio.com
ES Este manual está escrito en Inglés. Para otros idiomas, visite: www.hill-audio.com
PT Este manual está escrito em Inglês. Para outros idiomas, visite: www.hill-audio.com
IT Questo manuale è scritto in inglese. Per altre lingue, visitare: www.hill-audio.com
PAGE 1
USER MANUAL - CHP400 HEADPHONE AMP
PAGE 2
Health advice
This unit produces and absorbs electromagnetic radiation. The strength of radiation and the sensitiv-
ity for disturbing interference matches the CE and FCC requirements. A corresponding sign is printed
on the backside of the unit. Any change or modification may affect the behavior of the unit concerning
electromagnetic radiation, with the CE requirements eventually not to be met any more. The manufac-
turer takes no responsibility in this case.
Functional advice
This unit is immune to the presence of electromagnetic disturbances – both conducted and radiated
- up to a certain level. Under peak conditions, the unit is classified to show a “class C” performance
criteria and may encounter temporary degradation or loss of function which may need manual help
to recover. In such case, disconnect the AC power from the unit and reconnect it again to recover.
Environmental advice
This unit is built to conform to the ROHS standards and the WEEE directive 2002/96/EC of the
European Parliament and of the Council of the European Union. Under these regulations, the product
shall not be discarded into regular garbage at the end of its life, but shall be returned to authorized
recycling stations.
Unpacking
Please check that the box contains the following items:
Main parts: 1 pc. CHP-400 main unit
1 pc. Mains cable
1 pc. Operation manual
If any part is missing, please contact your dealer immediately for replacement.
Warning
After unpacking, and before plugging the AC cord in the wall outlet, check whether the
AC mains voltage and frequency is the same as this product is specified for (see rear
panel of product). Whenever the specified voltage or your AC plug should not match
the local conditions, do NOT plug the AC cord into the wall outlet and contact your
dealer immediately.
Description
The CHP-400 is an 4-way headphone amplifier with 2 inputs assignable to 4 outputs. Each output
offers dual front/rear TRS headphone jacks. The rugged and extremely compact design with internal
wide-range power supply makes this unit a versatile problem solver in many studio and installation
applications.
USER MANUAL - CHP400 HEADPHONE AMP
PAGE 3
Controls - Front
Controls and Connections
Connections - Rear
21 3
710811
69
4
5
USER MANUAL - CHP400 HEADPHONE AMP
PAGE 4
Functional Description
The CHP-400 is an 4-way headphone amplifier with 4 high-power heapdhone amplifiers assignable to
2 individual inputs. Dual front/rear connections and an internal wide-range power supply make this
unit suitable for a large variety of applications in recording, live sound and installation environments.
2
1
3
4
9
10
7
8
6
5
AC inlet. Use the supplied AC cord to connect the unit to AC mains. Make sure voltage and
frequency stated and set on the unit comply with your local AC supply.
HEADPHONE REAR OUTPUTS (channel 1 to 4). These are stereo (TRS) outputs suitable to
drive headphones. While headphones down to 32 Ohms can be connected, a higher imped-
ance type (> 60 Ohms) is recommended for lower distortion at high output levels. These
outputs are in parallel to the front-side outputs (7). Note that in case headphones are
connected to both front and rear outputs, the load impedance will only be half, so headphones
must have a sufficiently high impedance.
MAIN INPUTS L and R (inputs A and B). These are balanced TRS connectors. The L input shall
be used when the source is mono, or shall be used as the left channel input when the source
is stereo. The R input shall be used for the right channel of stereo sources.
MAIN INPUTS STEREO (inputs A and B). These are unbalanced TRS input connectors, suitable
to accept a stereo headphone signal as an input.
MAIN LINK OUTPUT (input A only). This is a pair of balanced TRS output connectors, in order
to daisy-chain several units if required or to forward the input A signal to any other destination.
INPUT LEVEL CONTROLS (inputs A and B). Adjusts the input level of the signal connected via
the connectors (3) or (4).
HEADPHONE FRONT OUTPUTS. (channel 1 to 4). These are stereo 3.5mm (Mini-TRS)
outputs suitable to drive headphones. While headphones down to 32 Ohms can be connected,
a higher impedance type (> 60 Ohms) is recommended for lower distortion at high output
levels. These outputs are in parallel to the front-side outputs (2). Note that in case headphones
are connected to both front and rear outputs, the load impedance will only be half, so head-
phones must have a sufficiently high impedance.
SOURCE SELECTOR switches (channels 1 to 4). These switches determine whether the
relative output channel plays the signal of input A or input B.
OUTPUT LEVEL control (outputs 1 to 4). These controls set the outputs levels individually for
the relative output (2/7).
POWER switch. Switches the unit on and off. Make sure to switch the unit off when not in use.
POWER Indicator. Lights up when the unit is powered on.
USER MANUAL - CHP400 HEADPHONE AMP
11
PAGE 5
Connections
The CHP-400 uses the below connector types, for which the pin assignment must comply with the
following specification. Always make sure to use good connectors and cables to ensure proper opera-
tion. Balanced connections are to be preferred over unbalanced connections where applicable and
feasible. Avoid unbalanced connections exceeding 2m of cable length.
Technical Specifications
Max Output Power per channel:
(load impedance 100 Ω)...........................+21 dBm
Signal/Noise.............>90dBu (unwgtd 22Hz-22KHz)
THD............................................... 0.01% (Line)
Frequency response..........................20Hz – 20 kHz
A
C IN ...................................115/230V~ 50/60Hz
Power consumption................................max. 12W
Dimensions.................W157.5xH49.0xD131.5mm
Weight......................................................0.65 kg
Maintenance and warranty
While we have chosen the best components to make this product as rugged and reliable as possible,
some parts in audio products (potentiometers, faders, switches) are subject to wear which is a
matter of operation cycles, and not of time. While providing a full time-based warranty according to
the country’s of purchase requirements on the function of the electronic circuitry, we hence have to
limit the warranty on such electro-mechanical parts to 90 days from the date of purchase.
In many cases, malfunction of electro-mechanical parts occurs due to dust contamination, which may
require cleaning of such parts. As the inside of such parts is not accessible, a common practice is to
use cleaning fluids in the shape of sprays. Please be reminded that many of such fluids contain chemi-
cals which may wash away the dust but at the same time corrode or damage contact surface and
may cause cosmetic damage to other parts. We hence explicitly exclude any claims for exchange of
damaged part due to mechanical or chemical impact.
USER MANUAL - CHP400 HEADPHONE AMP
1-conductor shielded cable
(for unbalanced connections)
red
shield
2-conductor shielded cable
(for balanced connections)
red
shield
black
tip
sleeve
ring tip
sleeve
ring
red = tip
shield = sleeve+ring
red = tip
black = ring
shield = sleeve
tip
sleeve
tip
sleeve
red = tip
shield = sleeve
red = tip
black = sleeve
shield = uncon.
6.35mm TRS-mono
3.5mm TRS-stereo
CABLE Types
Structure Balanced
connection
Unbalanced
connection
PAGE 6
Operation
A. Connections
For connecting this unit to AC mains, please note:
Check whether the AC mains voltage and frequency is the same as this product is specified for (see
rear panel of product). Whenever the specified voltage or your AC plug should not match the local
conditions, do NOT plug the AC cord into the wall outlet and contact you dealer immediately.
Do not operate this unit without the line cord earth ground connected. To do so may increase the
risk of electric shock and increase line cord conducted emissions.
For making audio signal connections, always remember that good and reliable connections are a
basic requirement for good sound and reliable operation. Bad soldering of cables can result in inter-
mittent audio signals or temporarily lost ground connections, hence always use good cables. In case
of doubt about making proper connections, please see check the standard pin assignments required
for proper operation in the following section of this manual.
B. Powering up
Following a proper power-up sequence protects your equipment – specifically speakers – and your
ears. Follow the below procedure:
Turn down all output volume controls of any equipment in your audio system.
Switch on your audio sources first (Tuners, CD Players, PC’s with soundcards, Tapedecks, etc.)
Switch on the audio mixer
Switch on any audio processor between the mixer and the amplifier(s) [if any].
Switch on the amplifier(s).
Turn up the audio level on your sources if such controls are provided.
Set the audio output of your mixer to a low level.
Set the audio output of any audio processor between the mixer and the amplifier(s) to a medium
level [if any such processors].
Turn up the volume controls of your amplifier(s) slowly.
Make adjustments to all volume settings as needed.
For switching off, follow the inverse sequence – always switch off your amplifier(s) first, then any
processors between mixer and amplifier(s), then the mixer, then the sources.
C. Use
Apart from using good equipment, good sound comes from using it correctly. Level setting mistakes
are one of the common reasons why even good equipment may not perform as desired. For setting
levels, please be reminded that two guidelines need to be followed:
Avoid distortion by leaving some headroom. Never overrun any audio-equipment’s inputs. Level
meters and displays allow you to make sure that signals do not enter critical levels.
Avoid unnecessary amplification by using as little attenuation as possible. For example, if you turn
down the input gain of a mixer to minimum, and then increase the main output of the mixer to maxi
mum to drive your amplifier properly, you will create unnecessary noise, as you first dispose of some
already existing signal level, and then later apply amplification (tainted with noise) to make it up.
Obviously, these two requirements are marking a levelling window that the operator must match to
achieve a good sound with as little distortion and noise as possible.
WARNING - HEALTH RISK
Excessive volume levels on headphones or other sound systems may cause hearing
damage. Always turn the volume control to minimum when you switch the unit on, and
avoid prolonged exposure to sound pressure levels exceeding 90dB.
USER MANUAL - CHP400 HEADPHONE AMP
Hill Audio CHP-400
EC Declaration of Conformity
We declare on our own responsibility, that the equipment
is in conformity with the following directives and standards or regulations:
EMC Directive 2014/30/EU
EN55032:2012 (Emissions)
EN55103-2:2009 (Immunity)
EN61000-3-2:2014
EN61000-3-3:2013
LVD Directive 2014/35/EU
EN60065:2014
ROHS2 Directive 2011/65/EU
and is marked as follows:
Authorized SignaturePlace and date of issuing
www.hill-audio.com
Hill Audio products are developed, manufactured and distributed by
Adelto Technologies
Unit 2A Springfield Road, Springfield Industrial Estate, Burnham-on-Crouch, Essex CM08UA, England
www.adelto.com | [email protected]
Manufacturer: Adelto Technologies Limited
Address: Unit 2A Springfield Road, Springfield Industrial Estate
Burnham-on-Crouch, Essex CM08UA, England
Burnham-on-Crouch, 30.06.2017
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Hill Audio CHP-400 Manuale utente
- Categoria
- Apparecchiature musicali supplementari
- Tipo
- Manuale utente
in altre lingue
- English: Hill Audio CHP-400 User manual