User`s manual

LTO

Notch - The Notch filter effectively removes a slice of the signal and is useful for targeting very localised problems. It

can, for example, be used as an aid to tracing spurious noises caused by vibrating panels being excited at a certain

frequency. Gain adjustment is disabled in this mode.

MASTER & CHANNEL DELAY:

A wide ranging amount of delay, from as little as 21 microseconds (that's 0.021ms, equivalent to a distance of a little over

7mm), can be set on each of the input and output channels. This allows the signal transmission from the various speaker

drive units to be aligned to the listening position (a process known as "time alignment"). Values can be input as distance

(millimetres/meters) or time (microseconds/milliseconds).

Channel (Output) Delay: A small amount of delay can be applied to the signal from each output channel. The amount of

delay is usually calculated from physical measurements of the distances between the various speakers and the driver's

ears. The delay compensates for the difference in speaker mounting positions, with the speaker furthest away (commonly

the woofer in the trunk) being the reference point to which all other speakers are aligned (i.e. delayed).

When applied correctly to all speakers in the system, the result is an improvement in the apparent stage position, height

and depth, and the location and focus of the performers on the 'virtual stage' that should extend across the dashboard.

Ideally there should also be the feeling that the low bass is coming from ahead of you, even where the woofer is physically

behind you.

Master (Input) Delay: From here you can delay an input signal before it is sent to the channel routing stage, so that all

the outputs fed by that input are delayed by the same amount. This feature is more applicable to PA applications, where

it is used to compensate for the distance between blocks of speakers in large concert halls and stadiums, but it has app-

lications in the car too.

For example, if you are not feeding your subwoofer(s) through the UCS PRO, then you could use the Input Delays to time

align your mid-woofers (for example) to the subwoofer(s) and then use the Output Delays to time align the remaining

speaker drive units (i.e. the mids and tweeters) to the mid-woofers. This would ease the job of fine-tuning the alignment

of the subwoofer(s) to bring the bass forward, by only having to adjust the Input Delay settings.

Alternatively, you may like to try a creative use for the Input Delay. Apply a very small amount of delay on one channel

only - this can give an added sense of stereo width that, while artificial, can provide quite a striking effect.

Parameter Menus & System Set-up