NAD C 304 Stereo Integrated Amplifier (defective)
PHP 8,000
Well used
Mailing · Meetup
Bonifacio Global City (BGC)
Condition
Description
Posted
1 month ago
Brand
NAD
The NAD 304 is a classic stereo integrated amplifier that delivers 35 watts of continuous power per channel, features a built-in phono stage, and includes a rear-panel soft clipping switch. Introduced in the mid-1990s, it remains popular on the used market for its simple layout and warm, honest sound. Key Specifications Power Output: 35 watts RMS per channel into 8 ohms (with dynamic power peaks up to 110 watts into 2 ohms). Total Harmonic Distortion (THD): Under 0.03% (20 Hz to 20 kHz). Inputs: Phono (Moving Magnet), CD, Tuner, Video, Aux, and two Tape loops. Outputs: Pre-amp out, tape outputs, and single speaker pair binding posts. Dimensions & Weight: 420 mm wide, 108 mm high, 320 mm deep; weighs 6.4 kg. Design and Features Soft Clipping: A rear switch lets you turn on NAD's circuit to protect your speakers from distortion at high volumes. Tone Controls: Includes front knobs for bass, treble, balance, and a tone defeat switch. Community Consensus: Users on Audiogon generally agree that the unit punches well above its modest power rating, though later models like the NAD 320BEE offer lower noise and more refinement. Defect: A constant red power light on a NAD C 304 indicates that the amplifier is stuck in protection mode and failing to initialize to green. The most common cause for this classic fault is the failure of internal resistors R333 and R334. Common Causes & Fixes Failed Resistors (R333 & R334): These standard 47k-ohm, 0.5W resistors drift high in resistance or go completely open-circuit over time, stopping the circuit from biasing properly and triggering the protection relay. The Fix: Replace R333 and R334 with upgraded 47k-ohm, 1W (or 2W) metal film resistors for better heat handling and longevity. External Short Circuits: Speaker wires touching or a shorted load can force the unit into protection. The Fix: Disconnect all speaker wires and inputs, then restart the amplifier to see if it turns green. DC Offset or Failing Capacitors: Internal component aging can cause DC voltage leakage on the channels. The Fix: Check electrolytic capacitors and measure output offset voltages if the red light persists after replacing the primary resistors. RFS: Raising funds
Delivery
Mailing & Delivery
Meet the seller

Michaelbene Benedicto
Profile details
4.0
8 reviews
6 years
on Carousell
4.0

Great on communication and easy to talk to. Thanks sa sulit na deal!
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