1. A parallel infinite impulse response (IIR) filter with low quantization effects, comprising: a multiplier having a constant associated therewith, an input terminal for receiving a digital signal, and an output terminal for providing a first intermediate signal; a plurality of digital biquad filters, each digital biquad filter having an input terminal for receiving said digital signal, and an output terminal for providing a corresponding intermediate biquad signal; an output summing device, having a first input terminal coupled to said output terminal of said multiplier, second input terminals coupled to output terminals of corresponding ones of said plurality of digital biquad filters, and an output terminal for providing an output signal of the parallel IIR filter; and processing means for providing coefficients to each of said plurality of digital biquad filters, said processing means comprising: expression means for expressing a transfer function of the parallel IIR filter as a cascaded IIR filter transfer function, said cascaded IIR filter transfer function being a product of a plurality of cascade form biquad terms, each cascade form biquad term having a numerator and a denominator; decomposition means for decomposing each cascade form biquad term to provide a pair of first-order terms of a plurality of first-order terms corresponding thereto; calculation means for calculating first and second intermediate numerator coefficients for each first-order term; combination means for combining pairs of said plurality of first-order terms to provide a plurality of parallel-form biquad terms; and application means for applying first and second numerator coefficients and first and second denominator coefficients of each parallel form biquad term to corresponding ones of said plurality of digital biquad filters of the parallel IIR filter, the parallel IIR filter filtering said digital signal to provide said output signal using said plurality of digital biquad filters as determined by corresponding first and second numerator coefficients and corresponding first and second denominator coefficients.