Ashdown Engineering CTM 300 Bedienungsanleitung

Ashdown Engineering Empfänger CTM 300

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Ashdown Ampliers reserve the right to change specications without notice. E & O E. All contents © Ashdown 2012.

USER MANUAL

CTM 300 / CTM 100

Thank you for choosing an Ashdown Valve Series ampliﬁer. To ensure

that you receive the full beneﬁts of the Ashdown warranty, please

WARRANTY

Your ampliﬁer is covered by a one year warranty, against defects in

materials and workmanship, for the original purchaser. Ashdown will, at

their discretion, replace or repair any product or part thereof, which is

found by Ashdown to be defective. This warranty shall not apply to the

damage of covering, ﬁttings or ﬁnishes when affected by carelessness,

accident or extreme climate changes. Nor does it apply to normal wear

and tear of parts such as valves, fuses, light bulbs, speakers, controls etc.

In the unlikely event of any defect, please contact an authorised

Ashdown dealer. All transport charges are to be pre-paid by the Owner.

Unless your purchase is registered on-line, normal country warranty laws

apply.

IMPORTANT SAFETY INSTRUCTIONS

This Ashdown ampliﬁer has been designed to provide you with many

years of faithful service – on the road, in a studio or in a domestic

environment. By following the rules set out below, you will ensure

that the unit functions safely.

Valve (tube) instrument ampliﬁers contain very high voltages and fragile

glass tubes and should therefore be handled with care. A number of

important precautions which must be observed are set out below.

Before using the ampliﬁer, run through the check list below. If you are

in any doubt about any aspect of the ampliﬁer’s operation, stop using

it immediately and do not resume operation until the ampliﬁer has been

thoroughly inspected by a qualiﬁed technician.

1) Storage and moving

When your ampliﬁer is not in use make sure that the power cord

is unplugged from the mains outlet, and that all leads are removed

from the ampliﬁer, including jack leads and footswitch leads. Jack

socket connectors are self-cleaning, so the process of plugging in

and unplugging the leads when not in use will ensure that the internal

contacts will be cleaned when you plug in again.

Store your ampliﬁer in a warm, dry place away from moisture and

condensation. A motor vehicle or cellar may look dry but condensation

can form inside the unit causing short circuits and possible electric shock.

If you suspect the ampliﬁer may have become exposed to moisture,

move it to a warm dry place and leave it to dry out for at least 48 hours

before attempting to use it.

Condensation can also occur when you move the ampliﬁer from a hot

humid place (such as a nightclub) to a cold place (like a motor vehicle).

In such instances, always move the ampliﬁer into a warm dry room to

prevent damage.

When moving the ampliﬁer, handle it as carefully as you would your

instruments. Although solidly built, an ampliﬁer is easily damaged

by shock, so be careful not to drop it or allow it to fall over. Use a

protective cover to protect the ﬁnish and, if you are transporting it with

other equipment, make sure that the ampliﬁer is on a solid ﬂoor at the

bottom of the pile.

Ampliﬁers are heavy. Take care when lifting, always use the handles

ﬁtted to the ampliﬁer to move it, and get help if you have to lift the

ampliﬁer to a greater height than you feel comfortable with.

Never attempt to operate the ampliﬁer after it has been dropped. Take it

to a qualiﬁed technician and have it checked before using it again.

2) Leads and plugs

Your ampliﬁer contains possibly lethal voltages and must therefore be

connected to the mains using the correct power cord, which is a three

terminal type with a ground connection.

The power cord supplied with the unit should be of the correct type. If it

does not ﬁt your mains outlet consult your dealer or a qualiﬁed electrician

for advice before attempting to use the ampliﬁer.

Never modify the power cord or attempt to use it with a two pin outlet.

Store all your leads in a dry case and take care when packing them

away. All leads, including guitar leads, are easily damaged with

careless handling, so it is a good idea to carry a spare lead of every

type you use. Flexible power cords get damaged very easily. At the ﬁrst

sign of damage, discard it and purchase a new one. Always replace

the power cord with one of the same type. Moulded cords are the best

choice with both plugs permanently ﬁtted to the cord.

When using your ampliﬁer and other equipment it is a good idea to

connect to the supply using a unit known as an R.C.D. These units are

not expensive and offer the user additional protection against electric

shock. An electrical shop should be able to supply you with a suitable

unit.

3) Before Use

Inspect your ampliﬁer for damage before use. Check each lead for

damage before you plug them in to the ampliﬁer, and ensure that the

loudspeaker is connected before you switch the ampliﬁer on.

Never try to operate the ampliﬁer without the speaker connected. If

you do, serious damage to the ampliﬁer will result which will be very

expensive to repair.

Double check the connections you have made to your ampliﬁer and

make sure you have connected the speaker to the correct outlet socket

that matches the cabinet you are using. The impedance of the speaker

is important and is usually shown on a plate afﬁxed to the back of the

cabinet, so if the cabinet is 16R (Ohms) then you plug into the 16R outlet

on the ampliﬁer.

4) Using the ampliﬁer

When you set the ampliﬁer up for use, it is important that you adhere to

the following rules:

Place the ampliﬁer away from sources of heat, including radiators, etc.

The ampliﬁer itself will get hot in normal use.

Make sure that all the grilles on the ampliﬁer are not obstructed in any

way so that cooling air can circulate through the ampliﬁer. Do not place

anything on or behind the ampliﬁer that might restrict the ﬂow of air. This

includes items of clothing, or other equipment.

WELCOME TO ASHDOWN VALVE BASS AMPS

4www.ashdownmusic.com

FRONT PANEL FACILITIES

INPUTS - There are two instrument inputs marked LOW and HIGH. The LOW input is highly sensitivity and also high

impedance to suit the output from PASSIVE (Low Output) basses - The HIGH input is low sensitivity and lower impedance to

suit the output from ACTIVE (High Output) basses. Plugging an active (High Output) bass into the LOW input will overload the

input, creating a fatter, warmer and more distorted sound. Experiment by plugging your bass into either input to achieve the

desired sound.

EFFECTS SEND AND RETURN - These 1/4” jack sockets should be used to connect to an external effects device or pedal board.

The EFFECTS SEND output should connect to the INPUT of the effects unit, and the output of the effects unit should be connected

to the EFFECTS RETURN input.

EQ CONTROLS - Use the MIDDLE, BASS and TREBLE controls to effect the overall tone of the sound. The MID SHIFT switch

causes the MIDDLE control to operate on higher frequencies in the up position, and lower frequencies in the down position.

The BASS SHIFT switch causes the BASS control to operate on deeper frequencies in the up position, and less deep frequencies

in the down position. The BRIGHT switch adds an overall brightness to the sound when in the up position. (Note: The BRIGHT

switch is not effective when the GAIN control is set to full).

GAIN - This controls the level of the signal sent to the MASTER section. To achieve a cleaner sound, turn the GAIN control down

and the MASTER up. To achieve a richer, more distorted sound, turn the GAIN control up and the MASTER down.

MASTER - This controls the overall output of the ampliﬁer.

MUTE - In the in position, this switch mutes the out put of the ampliﬁer (useful for tuning, etc.).

PRE/POST - This switch determines whether the signal from the DI OUTPUT is taken before/PRE the EQ section (in position) or

after/POST (out position).

VU METER - The VU meter provides a visual indication of the output level of the ampliﬁer. It also acts as a bias meter, please

see the following page for more details.

REAR PANEL FACILITIES

SPEAKER OUTPUTS - There are dedicated Speakon connectors for 2, 4 and 8! load speaker cabinet conﬁgurations. It is

important that the correct output or outputs are used to match the impedance load of your cabinets. Please refer to the

diagrams later in this manual.

Front Panel

Rear Panel

Ashdown Ampliers reserve the right to change specications without notice. E & O E. All contents © Ashdown 2012.

USER MANUAL

CTM 300 / CTM 100

Produktspezifikationen

Marke:	Ashdown Engineering
Kategorie:	Empfänger
Modell:	CTM 300

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