The GR DUAL Pre pedal offers the best compromise between portability and versatility for the modern bass player.
This powerful amp holds two completely independent channels that you can use simultaneously or with two separate professional D.I. outputs with GR Bass quality (really loved by sound engineers and professional musicians). A complete two-mode Overdrive on channel 2, and a complete Compressor on both channels (Volume, Ratio, threshold, two-mode release).

GR Bass

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Review by Talk Bass.com