One reviewer sees the drawbacks on this Yamaha STAGEPAS 300 and noticed that it has weak reverb function with sometimes some noise feedback from the amplifier. Even a mediocre digital reverb would be fine but this sounds like a weird slap-back echo. This portable sound system is not so usable for live music because the mic inputs provide no phantom power.. Yamaha's Stagepas 300 is a surprisingly compact yet reasonably powerful stereo sound system comprising a pair of moulded, passive two-way speakers and a small powered mixer that stows into a recess in the rear of one of the speaker cabinets for transport or storage. The other speaker has a similar recess with a removable cover for stowing.
The STAGEPAS 300 features a convenient storage compartment in the speaker box for packing the included power cable, speaker cable, and owner's manual. Remove the rear panel of the speaker and put in the things you need. Ready to perform - wherever you go! Crisp highs Punchy mids. Big, fat bass.. (STAGEPAS 500/300: MONITOR OUT, REC OUT) (STAGEPAS 250M/150M: ST SUB OUT, ST LINK OUT)-70dB between input channels ±15 dB, HIGH 10 kHz shelving, LOW 100 Hz shelving General Specifications (Mixer) General Specifications (Speaker) STAGEPAS 500 116 dB (1 m) LF: 10" (25 cm) Cone HF: 1" (2.54 cm) Compression Driver STAGEPAS 300 112 dB (1 m) LF: 8.