Module A-138j is a four channel mixer with an additional polarity / mute switch for each input. In the upper position of the corresponding switch the inverted signal is used. In the center position the input in question is turned off (mute) and in the lower position the "normal" (i.e. non-inverted) signal is used. The inverting of signals is used especially for control voltage signals (e.g. LFO, ADSR). But even for corellated audio signals this feature is useful. For example for feedback applications or the mixing of original and processed signals (e.g. original and filtered signal to obtain new filter types).
Channel 1 features in addition an Offset function: provided that no plug is inserted into socket Input 1 control Lev.1 generates an adjustable DC voltage (positive or negative depending upon the position of the polarity switch).
On top of that the module is equipped with two types of single outputs and a dual mix output. All inputs and outputs are DC coupled. Consequently the VCAs can be used to mix both audio and control voltages.
Each input is - apart from the polarity / mute switch - equipped with a linear attenuator. The amplification range is 0....1.
The single outputs offer the attenuated and possibly inverted / muted signal of the channel in question. Two version of single outputs are available:
Single Output A: If a plug is inserted into the single output "A" socket the channel in question is removed from the sum signal.
Single Output B: If a plug is inserted into the single output "B" socket the channel in question is not removed from the sum signal. This type of single outputs is available only for the channels 1 and 2.
Based on this flexible structure each channel can be used also individually as attenuator or inverter (i.e. without mixer function).
The output is twice available (two sockets, hard-wired like a multiple).
The distances between the controls and sockets are smaller as for the standard A-100 modules and rubberized small-sized knobs are used. In return the front panel has 6 HP width only. The module is primarily planned for applications where only limited space is available.
Power consumption: 20mA at +12 V and 20mA at -12 V
Depth: 40mm
HP : 6
If you decide an product is not suitable within 14 days of delivery, you can return it to us for a replacement or refund. Returns must be unused and in their original, undamaged packaging.
Some items are excluded from our money back guarantee:
- Computer software that has been unsealed or registered
- Any item that comes directly into contact with the nose, ears or mouth
To arrange a return, just contact our customer service department on 020 7424 2800 or via our customer support form.
from Juno Records: Studio Equipment - New Releases https://ift.tt/QZGd9vf
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