Ashdown CTM 15 15-watt EL84 Tube Bass Head User Manual
- June 13, 2024
- Ashdown
Table of Contents
CTM 15 15-watt EL84 Tube Bass Head
CTM 15
User Manual
THANK YOU
Thank you for purchasing your Ashdown Engineering pedal and welcome to the
family! We really think you’ve made the right choice and know that this pedal
will give you years of great tone and service.
It is a machine though and needs to be looked after, please read through this
user manual which will help you get the most out of your new pedal and keep it
running as long as some of our happiest and very famous customers.
REGISTER ONLINE
Please register this product online so we can make sure we give you years
of customer support through our friendly in-house service centre. Here is
where you need to visit to register your product:
http://www.ashdownmusic.com/pages/register-your-product
ASHDOWN ENGINEERING – CTM 15
USER GUIDE
INTRODUCTION
The re-introduction of a classic Ashdown Tube Magnifier, the low wattage
powerhouse that is the CTM-15. 15 Watts of beautifully rich valve tone in a
tiny package, now with built in load and headphone output for silent use. With
the on-board Line Level Di this makes the CTM-15 a perfect studio companion.
Plug in and lay down a few bass lines through the Ashdown CTM-15 tube amp, and
you won’t be the first to wonder “Wow, is that really only 15 watts?”. The
CTM-15 delivers deceptively large tones from its dual EL84 power stage, and
it’s low wattage means it’s easier to get red-blooded overdrive by driving it
hard – all without shaking the foundations.
FEATURES:
– 1 x GAIN DRIVE
– Di OUT
– VU
Weight & Dimensions:
H: 150mm
W: 240mm
D: 180mm
Kgs: 5.34
Lbs: 11.77
FRONT PANEL
INPUT
There is single instrument input which is suitable for both Passive and Active
basses.
EQ CONTROLS
Use MIDDLE, BASS and TREBLE controls to effec the overall tone of the sound.
GAIN
This controls the level of the signal sent to the VOLUME section. To achieve a
cleaner sound, turn the GAIN control down and the VOLUME up. To achieve a
richer, more distorted sound, turn the GAIN control up and the MASTER down.
VOLUME
This controls the overall output volume of the amplifier.
VU METER
The VU Meters provides a visual indication of the output level of the
amplifier. 
REAR PANEL
LINE LEVEL DI
This XLR socket is used to connect the amplifier to a low impedance, balanced
output on a PA system or recording mixer.
SPEAKER OUTPUT
There are dedicated 1/4” jack outlets at 8 and 4 ohms speaker cabinet
configuration. It is important that the correct output or outputs are used to
match the impedance load of your cabinets.
POWER/PREHEAT
Use this switch to pre-heat the valves, bringing them u to the correct
temperature before performing.
SPECIFICATIONS:
OUTPUT POWER
15 Watts from 2x EL84
AUTOMATIC BIAS FOR PLUG AND PLAY EASY VALVE REPLACEMENT
4 and 8 Ohms outputs on 1/4” jack sockets
PRE AMPLIFIER
1x ECC83
CONTROLS
Totally passive tone shaping via Bass, Middle and Treble. Gain and Volume
controls for clean and distorted tones
VU METER
For indication of output power
NOTES:……………..