Warning for Class I Equipment (where applicable)

This product is a Class I construction and must be connected to a mains socket outlet with a protective earthing connection. Connect the included power cord/plug to an AC mains socket outlet with a protective earthing connection.

The mains fuse is provided for your safety. Disconnect the apparatus before replacing. The fuse rating for your model and region is indicated near the unit’s AC mains inlet. Do not replace it with a fuse of a different type. If the mains fuse repeatedly blows, contact your Orange dealer.

Information on fuses

• T = Time Delay (“Slow Blow”)
• mA or A = Rated current, expressed in mA or A
• L = Low breaking capacity or; H = High breaking capacity

Do not tamper with the voltage-selector switch.

Where applicable, the voltage-selector switch is located on the rear or side of the product. It is set at the factory for the country or region in which the unit is intended to be sold. 

Terminals labelled as “SPEAKER OUTPUTS” must be connected to a speaker cabinet of the designated load (Ω) rating using an un-shielded two-conductor cable for speaker use at all times during operation.

To reduce the risk of fire, electric shock AND/OR INJURY:

Do not expose this apparatus to rain or moisture. For indoor use only. Do not use in damp environments, e.g. bathrooms, etc.

Do not place objects containing liquids on or near the product.

Do not operate this apparatus or connect/disconnect a power plug whilst hands are wet.

Do not cover or block ventilation openings. Ensure the apparatus is installed with plenty of space around the unit, as this apparatus may generate heat under normal use.

This equipment is not intended to be used on soft support (like beddings, blankets etc.). This equipment should always be placed on a flat, stable surface.

For units with fan ventilation: Do not obstruct the fan, or place objects into the fan. Keep body parts away from fan blades.

Do not attempt to gain access to the interior of the product. No user-serviceable parts inside. Refer all servicing to a qualified technician.

Do not operate equipment when the protective grille has been removed.

Valves (tubes) (where applicable)

To ensure optimum operation, valves should be replaced once per year. Valve models (except Class A fixed bias) will benefit from having the bias checked when output valves are replaced. Bias checking should be undertaken by a qualified technician.

Before using your amplifier

Voltage-selector switch

The voltage-selector switch and mains fuse is set at the factory for the country or region in which this Orange product is intended to be sold. To prevent serious damage to the product, ensure that the rated AC mains voltage indicated on the product’s rear panel is the same as the mains voltage from your AC mains inlet before connecting the IEC power cable.

If the product is to be used outside of the factory-set region, please ensure the voltage-selector switch (found on the rear or side panel) is set to the correct voltage for the new country/region, and that the appropriate mains fuse is fitted in the pull-out fuse tray below the IEC mains input.

The correct mains fuse rating for the product is printed on the chassis. Use only the same type and rating as specified for the product. Be advised that different operating voltages require the use of different types of line cord and attachment plugs. If you are unsure, please contact your Orange dealer.

Powering on

Always ensure the amp’s volume controls are set to zero before switching on the power to the amplifier.

To prevent hum and electrical noise, operate your amplifier and instruments as far away from other electronic devices (especially fluorescent and neon lamps) as possible, as these generate extremely high levels of electronic noise.

Speaker output connection

Make sure the correct speaker load is connected at all times during operation.

Always connect to a cabinet of an appropriate power rating/handling.

Never use two cabinets of different/mismatched impedance.

Only connect speakers using a quality dedicated speaker cable. Never use an instrument cable. 

Never connect headphones to the speaker outputs.

If you are unsure, please contact your Orange Dealer.

Only connect speaker cabinets in accordance with this manual. Failure to do so will cause damage to the amplifier and void any warranty.

Heads

1 × 16 Ohm cabinet — Use the 16 Ohm speaker jack socket (rear of chassis)

2 × 16 Ohm cabinets — Use both of the 8 Ohm speaker jack sockets (rear of chassis)

1 × 8 Ohm cabinet — Use either of the 8 Ohm speaker jack sockets (rear of chassis)

Combos 

All Orange valve combo amplifiers have an internal speaker load of 16 Ohms and are connected to the amplifier’s 16 Ohm output at the factory. When using an extension cabinet, only ever connect a 16 Ohm cabinet.

To connect an extension cabinet to the combo, reconnect the internal speaker jack to either of the 8 Ohm speaker outputs, and connect a 16 Ohm extension cabinet to the other 8 Ohm speaker output.  

Be sure to reconnect the internal speaker to the 16 Ohm output when an extension cabinet is not attached.

Valves

When powering up, ensure the amplifier is set to the STBY position on the front panel for a minimum of two minutes prior to performance. This will prolong the life of the valves. 

The HT fuse(s) on the rear of the chassis will blow in the event of output valve failure in order to protect the internal circuitry from damage. Orange recommends output valves are replaced in full matched sets. Orange models fitted with EL34 or 6550 valves will also benefit from a bias adjustment, which should only be undertaken by a qualified technician. When changing the HT fuse, gently push down on the fuse holder and turn anticlockwise to release the fuse.