JCF Audio 651AT – Digitally Controlled Analog Equalizer (500 Series)

JCF Audio 651AT – Digitally Controlled Analog Equalizer (500 Series)

Froportional-Q EQ for 500 Series format. Digitally recallable with increased flexibility in filtering. Musical shapes without the grunge of old.The DCM’s are a collection of modules for the 500-series format that allow for modern recallability at the surface and resolute analog processing underneath.

The units have virtualized controls with a fast multi-button/page-based interface that allows a great deal of control to be packed in in a small space. The “no-frills” graphic primitives approach allows the user access to the hard data about where the controls are set without guesswork. This type of control allows for up to 256 steps per control for both switch and potentiometer adjustments where relevant. All lower right-hand buttons enact the utility menu for the device, all of which contain access to the “Pulse out” feature. Selecting this will output a stream of data in an audio-band format that’s suitable for recording and hardy enough to survive large reductions in amplitude and a reasonable amount of signal distortion without destruction of information. This approach has the advantage of timelessness and complete avoidance of personal computer politics and lineage.

Data can also be easily shared or copied between like device-types just as easily as editing audio.

In modules with wireless capability, information from multiple units can be aggregated into one leader which is a network access point. This access point has a webpage based interface with which the user can upload or download control information for all units in that particular leader/follower series. Generic OSC message controllability exists on some modules as well.

Front Panel Controls

Encoder – Continuous illuminated rotary controller for changing relevant parameters on the currently selected page. The encoder is also a push button. It will enact utility items and in some circumstances change on items on other selected pages. The encoder will change color relative to the pages of the interface.

Ut – The utility page. Contains “Pulse out” for sending module data to the outside world in addition to any number of other selections that are module-specific. Items are selected with the encoder scroll / button.

In – Switch and associated LED. Shows whether the module’s internal output is attached to the module’s physical output or it’s input is. The module’s physical input is always connected to a powered buffer for purposes of accessing recall data from the outside world. This equates to a “half” or output-only bypass rather than “true” bypass. This is significant only insomuch as signals of importance should not have the module’s input hanging off it while power is not applied. An additional step has been made in that for devices that allow for jumper-configured unbalanced input operation, applying the bypass function will return the input to a differential input state for greater respect of the driving source profile.

The other 7 buttons – are device specific.

Features:

• No AI
• Single 500 slot design
• Snappy 8-bit UI
• No proprietary software
• < 7W consumption all modules
• Many future module types possible

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