Using the Mambo Amp for the first time.
This guidance is for first time users, just to get started and note some important points.
•
Plug in to the mains and switch on.
•
After a few seconds the green light will come on.
•
Set the gain control to 12 O'clock.
•
Set the bass, middle and treble controls to 12 O'clock.
•
Set the master volume to zero.
•
Plug your guitar into input A
•
Turn your guitar volume up full.
•
Play loudly and turn up the master volume to the required maximum loudness.
•
Adjust the tone controls and reverb etc. to your taste
•
Use the guitar volume to control the overall loudness.
Some points worth noting;
On the harmonic setting it is possible to overdrive the preamp slightly with high gain settings when playing loud
, This is
deliberate, but if you want a cleaner sound, turn the gain down, or use the clean setting.
Use the tone switch to select the best overall tone for your preference.
The bright setting has a Fender style sound, the deep
setting is more like a Polytone.
The green light flashes for a few seconds after turning on the power.
This is normal. The power amplifier is checking mains voltage
and loudspeaker impedance during this interval.
After turning on the power the volume turns up gradually, taking a few seconds to reach normal volume
.
This is the soft-start
feature and is correct operation. To protect ears and loudspeakers.
To use the headphone socket, turn the master volume control to zero
. The loudspeaker is not automatically muted when you plug
the headphones in. This is to remove the common problem of loudspeaker mute-switch failure.
There are two guitar inputs, input A is normal, input B has a 6dB pad,
i.e. half gain.
Use input A with most guitars
.
Some active
guitars and pedals may benefit from using the low gain input B. If plugging in two guitars at the same time both sockets automatically
switch to normal. i.e. they are identical if used simultaneously.
Using the Mambo Amp with an extension speaker
The extension speaker socket is provided to allow the use of a separate speaker cabinet
either on it's own, or at the same time
as the internal speaker. total speaker impedance must be 4 Ohms or greater,
The rocker switch near the extension speaker socket switches the internal speaker on / off
. If you are not using an extension
speaker and the amp is silent, check the switch hasn't been switched off by mistake !
The power amplifier is rated for two 8 Ohm loads in parallel, e.g.
250 Watts rms, for the internal 8 Ohm speaker, plus an additional
250 Watts rms for an external 8 Ohm speaker.
Be sure your external speaker is 8 Ohms or more, and can handle the power. You can
use a 4 Ohm external speaker cabinet ONLY if the internal speaker is switched off.
