Marantz PM-14S1 - Amplifier If you love music and treasure sonic realism, there are probably a couple of high-end products you covet. Here's another one to add to your list. The Marantz PM-14S1 with its glorious sound quality, rock-solid construction, and eye-catching looks. The huge, copper-wound toroidal power transformer and current feedback circuit work together to deliver clean, stable power that handles peaks in volume smoothly and accurately — and without distortion. Discrete circuitry, anti-vibration chassis reinforcement, new high-purity copper speaker terminals, gold-plated input connectors. Product highlights: 90 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.05% THD 140 watts x 2 channels into 4 ohms (20-20,000 Hz) current feedback amplification circuit for accurate, natural sound at all volume levels Marantz's Hyper Dynamic Amplifier Module (HDAM-SA3) offers exquisite detail and dynamic range while reducing noise frequency response: 5-100,000 Hz (±3dB) signal-to-noise ratio: 106dB line, 86dB phono (MM), 75dB phono (MC) massive toroidal transformer wound with oxygen-free copper rigid chassis with double-bottom plate and aluminum die-cast feet to minimize vibration 6 RCA audio inputs (includes phono input for moving magnet and moving coil cartridges) phono section features constant current feedback gain stage for flawless musical reproduction from your vinyl recordings Power Amp Direct inputs for use with a separate preamp or A/V receiver with Front L/R preamp outputs stereo RCA preamp outputs 2 sets of stereo RCA recording outputs high-purity copper binding-post speaker connectors biamp/stereo switch lets you biamp your speakers using two PM-14S1's for even higher-fidelity sound full-size headphone output remote control detachable power cable