Hi!
I've been there a few weeks ago with a project of sequential switch for my audio installation. I've finished it today, after 5 month of work .
Now, no need to turn on one by one the source, audio processor, active filter, volume controller and the two amplifiers, in a defined order! I usually use a tuner, a cd/usb player and a mix table connected to the computer. Wiring the audio outputs of those devices in parallel doesn't work, so I always had to connect the audio cable to the right device, BEFORE I turn it on...
The new device allows me to turn on the source I want to listen by simple push on a switch or with a universal remote control. It then turns on the other devices in the pre-definied order. Idem to shut down: press the illuminated switch or the corresponding key on the remote control and everything turns off in the right order without risk of "crash" or "boom" in the speakers. To select a source while listening to an other, I have to press the corresponding key for 3 seconds, that avoids inopportune operation.
The selected audio input is automatically connected to the common outputs (1x Left, 1x Right XLR)
For the electrical part: there are 8 outlets controlled with 8Amp solid state relays (zero crossing), and two outlets controlled with 16Amp SSR for the amplifiers. All relays are mounted on aluminium radiators.
For the audio part: 4x 2 XLR input (supporting symetrical signals) switched with REED relays and 2 XLR outputs.
After listening, there's an standby mode: the electronic circuits are still supplied, programms are running and ready to receive information from user. Devices can be turned on at any moment. The sequential switch can naturally be completely turned off with the main switch (on the front panel of the main casing)
Both picaxe can be re-programmed without opening the casing, there's a Jack input on the back panel and a DIP switch to select which picaxe I want to work on.
Some photographs:
The first one is a general view. The second is only a detail: it's a plexiglas blade, enlighten with 3 LEDs and which is placed behind the front panel (see later)
I've been there a few weeks ago with a project of sequential switch for my audio installation. I've finished it today, after 5 month of work .
Now, no need to turn on one by one the source, audio processor, active filter, volume controller and the two amplifiers, in a defined order! I usually use a tuner, a cd/usb player and a mix table connected to the computer. Wiring the audio outputs of those devices in parallel doesn't work, so I always had to connect the audio cable to the right device, BEFORE I turn it on...
The new device allows me to turn on the source I want to listen by simple push on a switch or with a universal remote control. It then turns on the other devices in the pre-definied order. Idem to shut down: press the illuminated switch or the corresponding key on the remote control and everything turns off in the right order without risk of "crash" or "boom" in the speakers. To select a source while listening to an other, I have to press the corresponding key for 3 seconds, that avoids inopportune operation.
The selected audio input is automatically connected to the common outputs (1x Left, 1x Right XLR)
For the electrical part: there are 8 outlets controlled with 8Amp solid state relays (zero crossing), and two outlets controlled with 16Amp SSR for the amplifiers. All relays are mounted on aluminium radiators.
For the audio part: 4x 2 XLR input (supporting symetrical signals) switched with REED relays and 2 XLR outputs.
After listening, there's an standby mode: the electronic circuits are still supplied, programms are running and ready to receive information from user. Devices can be turned on at any moment. The sequential switch can naturally be completely turned off with the main switch (on the front panel of the main casing)
Both picaxe can be re-programmed without opening the casing, there's a Jack input on the back panel and a DIP switch to select which picaxe I want to work on.
Some photographs:
The first one is a general view. The second is only a detail: it's a plexiglas blade, enlighten with 3 LEDs and which is placed behind the front panel (see later)
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