Ashdown 12-BAND 600 Руководство пользователя - Страница 4

Просмотреть онлайн или скачать pdf Руководство пользователя для Усилитель Ashdown 12-BAND 600. Ashdown 12-BAND 600 12 страниц.

ASHDOWN ENGINEERING - 12-BAND 600

USER GUIDE

FRONT PANEL FACILITIES

INSTRUMENT INPUT - There are two Instrument Inputs. The first of these is a Jack

socket suitable for all Passive or Active bass instruments with a conventional jack

output. This will perfectly match the high impedance output from a passive bass but

also has sufficient headroom to accept the lower impedance and higher signal level

from active instruments. The second input is a balanced XLR input for the ultimate

in low impedance interconnection between bass instrument and amplifier. This may

be used with both balanced or unbalanced connections but is best used with a true

balanced connection where it will give up to 100dB of common mode rejection,

cancelling any noise picked up on the instrument connection cable.

INPUT CONTROL - The INPUT control sets the signal level through the preamp

in conjunction with the INPUT LEVEL VU Meter. This is adjusted to give a reading

of 0VU on the meter for average playing dynamics with occasional peaks into

the red region. Please note that the setting of this may have to be re-adjusted

after modification of the EQ controls. It is most important to set this control to the

optimum (as described above) to get the best noise free performance.

HARMONIC EMPHASIS - HARMONIC EMPHASIS is a new addition within this

amplifier and consists of a circuit that takes the bass signal and emphasises

harmonics within it to produce a bright zingy top end. It is not an EQ circuit, it

actually synthesises new harmonics, adding these to the original sound. The best

way to describe this is that it is similar to the top end zing you get from a new set of

strings.