Ampeg B15S portaflex combo

Vintage valve 50 watt bass combo. 1×15 speaker. Top flips over for storage inside the cabinet.

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Vintage early 1970s valve 60 watt bass combo. 1×15 speaker.

The B15S was the more powerful version of the 30 watt B15N with twice the power output.

The top flips over for storage inside the cabinet.