Solid State Logic Alpha VHD-Pre Installation guide

Type
Installation guide

This manual is also suitable for

AAllpphhaa VVHHDD PPrree
Installation Guide
Installationsanleitung
Manuel d’Installation
Manual de Instalación
Guida di Installazione
82S6AL020A
EN
DE
FR
ES
IT
Solid State Logic
S O U N D
||
V I S I O N
CCoonntteennttss
English 1
Deutsch 9
Francais 17
Espanol 25
Italiano 33
EN
DE
FR
ES
IT
This section contains definitions, warnings, and practical information to ensure a safe working environment.
Please take time to read this section before installing or using this unit. Please do not dispose of these instructions.
General Safety
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Do not expose this apparatus to rain or moisture.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
Do not install near any heat sources such as radiators, heat registers, stoves
or other apparatus (including amplifiers) that produce heat.
There are no user-adjustments, or user-servicable items, inside this
apparatus. Do not remove the covers of this apparatus; doing so will
invalidate your warranty.
Refer all servicing to qualified personnel. Servicing is required when the
power supply has been damaged in any way, liquid has been spilled or
objects have fallen into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally or has been dropped.
Adjustments or alterations to this apparatus may affect the performance
such that safety and/or international compliance standards may no longer
be met.
Power Safety
This apparatus is supplied with a universal power supply, approved and
certified for operation in this apparatus. There are no user-replaceable fuses.
A power cord is supplied with this unit. Alternative power cords may be
used if rated 2.5A or above and fitted with a 3-pin IEC320 connector.
Use only the Solid State Logic provided power supply. Use of any other
power supply is not covered by your warranty and may cause fire or
explosion.
Any external power supply may become hot during normal operation of the
unit. Use care when handling the power supply.
Do not attempt to modify the power supply unit in any way.
If an extension power cable or adaptor is used, ensure that the total power
rating of the power cable and/or adaptor is not exceeded.
The power socket used for this apparatus should be located nearby and be
easily accessible.
Unplug this apparatus during an electrical storm or when unused for long
periods of time.
Installation Notes
When installing this apparatus, place the apparatus on a secure level
surface.
Ensure that no strain is placed on the cables connecting to this apparatus.
Ensure also that such cables are not placed where they can be stepped on,
pulled or tripped over.
Do not operate this apparatus whilst it is covered or boxed in any way.
Do not operate this unit with the covers removed. Performance may be
adversely affected.
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Safety and Installation Considerations
2
Your Alpha VHD Pre box should contain the following:
1. Un-pack
AAllpphhaa VVHHDD PPrree
Installation Guide
Installationsanleitung
Manuel d’Installation
Manual de Instalación
Guida di Installazione
82S6AL020A
EN
DE
FR
ES
IT
Solid State Logic
S O U N D
||
V I S I O N
Installation Guide
(this document)
The Alpha VHD Pre Unit
SWITCHING ADAPTOR
5A
* The cord supplied will be correct for the
territory where Alpha VHD Pre is purchased
1 x Power Cord *
or or
External Mains Adaptor
3
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2. Connect
POWER
+5V - 0.5A
+
/-15V - 0.3A
DC
MANUFACTURED IN U.K.
INPUT
4
3
2
1
OUTPUT
4
3
2
1
Solid State Logic - Oxford - England
ALPHA VHD Pre
Part no. 629998XA
Serial No
12345
Rear Panel Connections
5-pin 180° DIN 3-pin XLR-F 3-pin XLR-M
Pin 1 0V 0V 0V
Pin 2 0V +ve +ve
Pin 3 +5V –ve –ve
Pin 4 –15V
Pin 5 +15V
Front Panel Connections
Instrument ¼" Mono Jack
Tip Signal
Sleeve 0V
DC Power
+5V, ±15Vdc from PSU
Analogue Outputs
Balanced, max. output: +24dBu
Microphone Inputs
Balanced, max. input: 0dBu (+20dBu with Pad)
4
3. Play!
Power/Standby
Bright when unit is on,
dim when in standby
Instrument
Mono ¼" Jack for high impedence Instrument Input.
Inserting a jack will automatically select this input in
place of the standard microphone input
(on the rear of the unit).
Variable Harmonic Drive™
Adds level dependent colouration;
initially warm 2
nd
harmonic then
more aggressive 3
rd
harmonic
(see opposite)
Input Switches
Hi Z
Switches Mic Input impedence from 1kΩ to 10kΩ.
Use with PAD for Line Level inputs.
PAD Fixed 20dB attenuation for high level signals.
Glows ‘red’ when input is in ‘overload’ condition.
48V Switches +48V (‘phantom power’) to the Mic Input. Always
switch OFF before connecting/dis-connecting microphone.
Input Gain
Provides +20dB to +75dB gain
Output Gain
Provides ±20dB of adjustment
5
VHD Variable Harmonic Drive™ allows a signal (microphone or line) to be over driven from subtle harmonic
colouration through to full on distortion. The level of the incoming signal will have an affect on the VHD circuit, as will
the PAD button which offers 20db of gain reduction for loud signals, allowing the Alpha VHD Pre to work with line as
well as microphone level signals.
Each Alpha VHD Pre input features a control labelled ‘VHD’ with a range of adjustment indicated as ‘2
nd
to ‘3
rd
’.
Adjusting the VHD control changes the character of the added distortion from predominately 2
nd
harmonic to almost
entirely 3
rd
harmonic when fully clockwise; interesting blends between the two can be achieved at intermediate settings.
The character of 2
nd
harmonic distortion is akin to the warmer sound produced by overdriven valves whilst 3
rd
harmonic distortion is associated with the harder, brighter sound achieved from solid state devices.
The VHD control will have a far more noticeable effect at higher gain settings so the input gain should be used in
combination with the VHD control to affect the amount of distortion being added to the input signal. The PAD button
will glow red when the input stage is starting to overload; the VHD circuit is designed such that this is part of the
normal operation, though this should be avoided for a cleaner signal.
An over driven pre-amp may obviously have an effect on the gain of all parts the signal chain which follow the unit
and the output gain may need to be taken down to interface correctly with other equipment. The output level control
makes this adjustment a simple process.
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Using VHD
6
FCC Notice
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference when the equipment is used in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his
own expense.
Instructions for Disposal of WEEE by Users in the European Union
The symbol shown here is on the product or on its packaging, which indicates that this product must not be disposed of with other waste. Instead, it
is the user’s responsibility to dispose of their waste equipment by handing it over to a designated collection point for recycling of waste electrical and
electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources
and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your
waste equipment for recycling, please contact your local city office, your household waste disposal service or where you purchased the product.
Standards Conformance
This apparatus fully conforms with the current protection requirements of the European community council directives on EMC and LVD.
Warranty
This product is warranted against failure resulting from faulty materials or workmanship for a period of 12 months from date of purchase.
In Warranty Repairs
In the event of a fault arising during the warranty period, please contact your local dealer or distributor who will arrange either for repair or replacement as
appropriate (a list of dealers and distributors can be found on the Solid State Logic website: www.solid-state-logic.com
). Note that no units will be accepted for
repair by Solid State Logic unless accompanied by a valid RMA number, obtainable from Solid State Logic prior to shipping. All units should be shipped to Solid
State Logic in their original packaging. Solid State Logic cannot be held responsible for any damage caused by shipping units in other packaging. In such cases
Solid State Logic will return the unit in a suitable box, which you will be charged for. Do not include the power cable, manual or any other items Solid State
Logic can not guarantee to return them to you. Please also note that warranty returns will only be accepted as such if accompanied by the original receipt or
other proof of purchase.
Out of Warranty Repairs
In the event of a fault arising after the warranty period has expired, return the unit in its original packaging to your local distributor for shipment to Solid State
Logic. You will be charged for the time spent on the repair (at Solid State Logic's current repair rate) plus the cost of parts and shipping. Note that no units will
be accepted for repair unless accompanied by a valid RMA number, obtainable from Solid State Logic prior to shipping.
Physical *
Depth 230mm / 9" casing only
Height 44.5mm / 1.75" (1 RU)
Width 438mm / 17.25" casing only
482mm / 19" inc’ rack ears
Weight 2.6kg / 6 pounds
Power < 20 Watts
Boxed size 320mm x 550mm x 80mm
12.75" x 21.75" x 3.25"
Boxed weight 3.5kg / 8 pounds
* All values are approximate
Environmental
Temperature Operating: +5 to 30 deg. C
Non-operating: –20 to 50 deg. C
Max. gradient: 15 deg. C/hour
Relative Operating: 20 to 80 %
Humidity Non-operating: 5 to 90 %
Max. wet bulb: 29 deg. C
(non-condensing)
Vibration Operating: < 0.2 G (3 – 100Hz)
Non-operating,
power off: < 0.4 G (3 – 100Hz)
Shock Operating: < 2 G (10ms max.)
Non-operating: < 10 G (10ms max.)
Altitude Operating: 0 to 3000m
(above sea level) Non-operating: 0 to 12000m
7
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Connections
Power Supply IEC320 3-pin connector, 100 – 240 Vac, 50 – 60 Hz
Analogue I/O
Microphone Balanced, 3-pin XLR-F, Zin = 1kΩ (10kΩ for Hi Z)
Instrument Un-balanced, ¼" Mono Jack, Zin = 1MΩ
Output Balanced, 3-pin XLR-M, Zo = 40Ω
Power 5-pin 180° DIN connector, +5Vdc, ±15Vdc
Specifications
18
Votre emballage Alpha VHD Pre doit contenir ce qui suit:
1. Un-pack
AAllpphhaa VVHHDD PPrree
Installation Guide
Installationsanleitung
Manuel d’Installation
Manual de Instalación
Guida di Installazione
82S6AL020A
EN
DE
FR
ES
IT
Solid State Logic
S O U N D
||
V I S I O N
Manuel d’Installation
(ce document)
L’unité Alpha VHD Pre
SWITCHING ADAPTOR
5A
* Le câble fourni est adapté au territoire
d’achat de l’unité Alpha VHD Pre
1 x Câble d’Alimentation *
ou ou
Alimentation secteur externe
27
EN
DE
FR
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2. Connect
POWER
+5V - 0.5A
+
/-15V - 0.3A
DC
MANUFACTURED IN U.K.
INPUT
4
3
2
1
OUTPUT
4
3
2
1
Solid State Logic - Oxford - England
ALPHA VHD Pre
Part no. 629998XA
Serial No
12345
Conexiones del panel posterior
5-pin 180° DIN 3-pin XLR-F 3-pin XLR-M
Pin 1 0V 0V 0V
Pin 2 0V +ve +ve
Pin 3 +5V –ve –ve
Pin 4 –15V
Pin 5 +15V
Conexiones del panel frontal
Instrumento Enchufe mono ¼"
Tip (punta) Señal
Sleeve (manguito) 0V
Corriente continua
+5V, ±15Vde CC desde la unidad
de alimentación eléctrica
Salida Analógica
Balanceado, máxima salida +24dBu
Entradas de micrófonos
Balanceadas, entrada máxima: 0dBu (+20dBu con atenuador)
Solid State Logic
S O U N D
| |
V I S I O N
Visit SSL at URL: http://www.solid-state-logic.com
© Solid State Logic
All Rights reserved under International and Pan-American Copyright Conventions
VHD, VHD logo, Xlogic and Xlogic Alpha are trademarks of Solid State Logic
All other product names and trademarks are the property of their respective owners
No part of this publication may be reproduced in any form or by
any means, whether mechanical or electronic, without the written
permission of Solid State Logic, Oxford, OX5 1RU, England
As research and development is a continual process, Solid State Logic reserves the right
to change the features and specifications described herein without notice or obligation
E&OE
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Solid State Logic Alpha VHD-Pre Installation guide

Type
Installation guide
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