AMT Electronics
AMT GR-4 — programmable guitar switching system with 4 loops (+ power supply 12V with EU plug included!)
AMT GR-4 — programmable guitar switching system with 4 loops (+ power supply 12V with EU plug included!)
SKU:GR-4
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ABOUT THE PRODUCT
AMT GR-4 is a multifunctional floor passive guitar switchboard with microcontroller-based control ability. Organize your favorite pedals and preamps into 4 programmable loops and 1 non-programmable: with GR-4 you can engage one of the programmed combinations in one-touch!
► FEATURES
AMT GR-4 architecture and features:
- 4 programmable loops and 1 non-programmable
- Fully passive sound path; the switching is done by means of high-quality relays
- Shut-off input buffer compensating the long guitar cable impact
- External tuner output
- Built-in power splitter allows to use one power adapter to feed a few more external pedals
2 modes of operation:
- Fully programmable mode. Each 4 programs can be programmed with separate random combination of active loops
- Independent – under this mode each loop is switched on/off independently of the others by means of separate button.
► TECHNICAL PARAMETERS
- Dimensions (metal housing): 260 x 115 x 45 mm (rubber feet, outputs and knobs not counted)
- Supply voltage: 9-12V DC
- Battery Power: not provided
- Consumption current (depends on modes): 15~25 mA
- Power supply 12V DC is included!
► USER'S GUIDE
All other necessary information about the device (User’s Guide, videos, etc.) you'll find on the product's page at the AMT Media Center:
https://media.amtelectronics.com/amt-gr-4/
💡 FOR THIS DEVICE, YOU MAY NEED TO PURCHASE
Extra plugs are purchased separately:
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EU plug for AMT Noiseless Power Adapters
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US plug for AMT Noiseless Power Adapters
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UK plug for AMT Noiseless Power Adapters
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IMPORTANT NOTE ABOUT THE POWER SUPPLY
For powering the AMT devices always use specialized power supplies originally designed for guitar pedals & gear meeting the following basic requirements:
Please, don't try to use for these purposes the usual cheapest power supply from household appliances and electronics, like from your laptop, Wi-Fi router, etc.! Such power supplies have a reverse polarity compared to AMT devices, so it won't work! Even if you're «the guy was born with a soldering iron in the hand» and almost ready to change a polarity of such power supply — we strongly not recommend you do that!
Those kinds of power supplies are not intended for using with the guitar gear. Otherwise, you'll get a problematic very noisy guitar sound full of «hum», «cheep», and other sound «effects»!
