The Radial Q4 is a true Class A 500 Series state-variable filter that gives you four EQ bands with fixed low- and high-frequency shelving. It also boasts two semi-parametric midbands that range from 300Hz to 2.4kHz and 1kHz to 12kHz, letting you choose between wide or narrow Q. Designed to interface with balanced pro audio recording systems, the Q4's 100% discrete electronics deliver the analog purity you're looking for, while its solid steel casing gives it immunity from external electromagnetic fields. Are you in the market for an amazing 500 Series filter? Radial's Q4 fits the bill.
Radial Q4 Class A State-variable 500 Series Filter Features at a Glance:
- 100% discrete, Class A state-variable 500 Series filter
- 4-band EQ with fixed low- and high-frequency shelving
- 2 semi-parametric midbands with wide or narrow Q
- Fully encased in steel for durability and protection against external electro-magnetic fields
- Double-sided circuit board with 100% discrete through-hole parts, wave soldered for optimal signal flow
- Made in Canada; Radial 3 year guarantee