Think of the Pioneer SPEC-4 Power Amplifier as two independent mono amps in one chassis. Our stay- ahead reputation in hi-fi technology is upped another big step here by achieving real independence for the essential circuits in both the left and right channels. Physically separated signal paths and dual power transformers, four big capacitors (two perchannel)to prevent power dry-up, separate left-right relays — everything to prevent crosstalk and distortion that erode stereo clarity and tonal quality. Because the SPEC-4 is of Pioneer’s new generation of “DC” configuration power amps, its performance is never compromised by capacitors in the negative feedback loop. The results: a continuous power output of 150 watts* per channel, min. RMS, at 8ohms from 20 to 20,000Hz with no more than 0.01 % total harmonic distortion. Check out the details of the SPEC-4 in the following pages, and see how Pioneer earns its stay-ahead reputation in quality high fidelity.