ORANGE OV4 Owner's Manual
  1. Manuals
  2. Brands
  3. ORANGE Manuals
  4. Amplifier
  5. OV4
  6. Owner's manual

ORANGE OV4 Owner's Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
®
OV4
1

Advertisement

Table of Contents
loading

Related Manuals for ORANGE OV4

Summary of Contents for ORANGE OV4

  • Page 1 ®...

  • Page 2: Thank You

    To maintain this level of excellence, each orange amplifier is put through many rigorous test procedures before leaving the factory.

  • Page 3: Table Of Contents

    CONTENTS ............................... 3 CONTACT DETAILS ........................... 4 IMPORTANT SAFETY INFORMATION ....................... 5 PANEL FEATURES & FUNCTIONS ......................10 OV4 QUICK REFERENCE GUIDE ......................12 DIVO OV4 OPERATION .......................... 13 DIVO OV4 Operation ... Continued ....................... 15 FOOTSWITCH CABLE ..........................18...

  • Page 4: Contact Details

    ® CONTACT DETAILS Orange Amplifiers OMEC House 108 Ripon Way Borehamwood Hertfordshire WD6 2JA ENGLAND Tel: +44 20 8905 2828 Fax: +44 20 8905 2868 info@omec.com Orange USA 2065 Peachtree Industrial Ct. Suite 208 Atlanta, GA 30341 Tel: 1-404-303-8196 Fax: 1-404-303-7176...

  • Page 5: Important Safety Information

    You can still get an electric shock when an amplifier is turned off and disconnected from the power. All installations and product adjustment / removals must be performed by an Orange Amplifier approved fitting centre. Disclaimer: Orange Amplifiers, its suppliers and subsidiaries accept no liability for any damage(s),...
  • Page 6 It is the responsibility of the authorised installer to perform the installation strictly in accordance with the installation guidelines. The installer will take full responsibility for the installation. Orange Amplifiers will only accept liability for their own branded product. For the avoidance of doubt, not the customer’s amplifier or installation work undertaken.

  • Page 7: Key Features

    ® DIVO OV4 GENERAL OVERVIEW The OV4 product is designed to be retrofitted into fixed bias100w/50w guitar valve amplifiers to improve the reliability and performance. For the safety reasons mentioned and to ensure correct installation and configuration within your amp, the OV4 must be installed by qualified personnel via an authorised dealer.
  • Page 8 ®  ‘Share the wear’ feature. Alternates between valves when the half power switch is used, to share the wear between output power valves.  Optional selectable switch between custom bias levels i.e. ‘standard’ and ‘custom’.  Visual indication to display when a valve has gone faulty so only the faulty valve needs to be replaced.
  • Page 9 ® SYSTEM BLOCK DIAGRAM AND FUNCTIONS...

  • Page 10: Panel Features & Functions

    The default factory settings for this mode are: 35mA, if the OV4 does not detect an audio signal, after 2 minutes the bias level drops to 20mA to preserve the life of the valves. As soon as audio is detected the bias level instantaneously reverts back to 35mA.
  • Page 11 Computer Interface This is for authorised personnel only. This is compatible with Orange DIVO footswitches. For use with 100W (four valve) amplifiers. When operated, a pair of valves can be switched out so the amplifier can run at half power. This feature can be operated with ‘share the wear’...

  • Page 12: Ov4 Quick Reference Guide

    Auto biasing will take place Amplifier standby switch OFF No LEDs illuminated when no audio is present Valves will alternate OV4 - Share the wear ON No LEDs illuminated between pairs during half power mode Valves 2+3 are always OV4 - Share the wear OFF...

  • Page 13: Divo Ov4 Operation

    ‘played’; the second is when no audio is present for Example, during an interval period. When the OV4 detects that the amp has not been played for a pre-set time, it automatically switches between the two biasing modes, for example, to drop back to a lower bias setting when it is not being played, thereby reducing power consumption, heat generation and extending valve life, whilst eliminating the possibility of valve cathode poisoning.
  • Page 14 ‘limp-home’ mode. The fault LED should then be consulted to determine the faulty valve. If a faulty valve is detected when audio is present, the OV4 will determine whether the condition is normal due to the amplifier being driven hard with audio or whether a real fault condition is present.

  • Page 15: Divo Ov4 Operation

    DIVO OV4 OPERATION ... CONTINUED The power to the amplifier must be re-cycled in order to reset the fault condition. The OV4 will then treat the valve as normal again and monitor it for a fault condition once again; however, it is strongly...
  • Page 16 The OV4 has a provision to connect a footswitch in order to deliberately switch between ‘pairs’ of valves in a 4 valve amp. This facility gives the ability to for example use a ‘pair’ of 6L6s’ and a ‘pair’ of EL34’s and switch between them using the foot switch.
  • Page 17 ® If an OV4 compatible footswitch is used for switching into the half power mode an LED indicates which pair of valves is selected. For example if the footswitch is operated with ‘share the wear’ ON, the user can clearly see what valves are selected and toggle between the inner and outer pairs of valves.

  • Page 18: Footswitch Cable

    ® FOOTSWITCH CABLE A 1/4" jack to jack TRS cable is required.

Table of Contents