Will 9 volts hurt an amplifier with rca inputs rated at 4 volts? do you just lower the gain on the amps? the amps are alpine 50 watts x 4 channels.

This will not hurt the amplifier. The output voltage is not a full time constant 9v.

does this come with as bass knob

No, but you can adjust the signal level going into your subs from this crossover.

este producto es chino?

Es chino pero la verdad es de muy buena calidad es muy buena marca reconocida en latino america

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🎵 Elevate your ride’s soundtrack with pro-level precision and power!

USER FRIENDLY CONTROLS - Quick on/off buttons and individual level controls make tuning your system effortless and precise.
CUSTOMIZABLE BASS BOOST - Adjust bass from 0 to 12dB at 45Hz to feel every beat with deep, punchy lows.
VERSATILE COMPATIBILITY - Supports 2, 3, or 4-way systems, perfect for audiophiles who demand total control over their car soundstage.
POWERFUL SIGNAL DELIVERY - Up to 9 volts RMS output ensures clean, distortion-free audio for a premium listening experience.
PRECISION SOUND SCULPTING - 4 RCA inputs and 6 outputs let you tailor every frequency band with surgical accuracy.

The PRV Audio EX4.6 PRO is a compact, high-performance electronic crossover designed for 3 or 4-way car audio systems. Featuring 4 RCA inputs and 6 outputs, it delivers up to 9V RMS output with adjustable high-pass/low-pass filters and a bass boost of up to 12dB at 45Hz. Its intuitive controls and versatile configuration empower audiophiles to customize their soundstage with clarity and precision.

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