How to reduce the noise from my speakers when using the DENON DP-29F turntable with a DENON RDS amplifier?

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The noise from your speakers with the DENON DP-29F turntable connected to your DENON RDS amplifier usually comes from connection or configuration issues. The DP-29F has a built-in RIAA equalizer amplifier that must be properly set to operate without interference.

Start by checking the amplifier-equalizer switch located on the side of the DP-29F. This switch should be set to ON if you have connected the output cables to the PHONO jacks of your DENON RDS amplifier, and to OFF if you have connected them to the AUX jacks. An incorrect setting can cause significant background noise.

The ground cable connection is critical. The DP-29F has a ground cable (SIGNAL GND) that must be securely connected to the ground terminal of your DENON amplifier. This is the most common cause of humming or noise. Ensure that this cable is not damaged and establishes a good electrical contact with the ground terminal. Also, make sure that the two output cables (white for the left channel, red for the right channel) are connected to the corresponding PHONO or AUX jacks and are not loose.

Isolate the audio cables from interference sources. Keep the output cables of the DP-29F away from the power supply cable, both from the turntable and the amplifier. Cable loops pick up electrical noise: unwind them as much as possible. Do not place the power cord near the audio cables.

Check the position and stability of the equipment. Place the DP-29F on a flat and solid surface, away from any vibrations. Do not position it too close to your speaker system, as this can create feedback or amplify ambient noise. A spacing of at least 1 meter between the turntable and the speakers is recommended.

Clean the cartridge and stylus. A dirty cartridge or stylus generates unwanted noise. Before each listening session, gently wipe the DSN-82 stylus with a soft, clean cloth. If the stylus has been used for more than 400 hours, replace it to reduce distortion and background noise.

Adjust the volume correctly. A volume that is too high on both the DP-29F and the RDS amplifier amplifies background noise. Start by setting the volume to minimum on the amplifier, then gradually increase it once playback has started, until you reach the desired level.

If the noise persists after these checks, test your DENON RDS amplifier with another audio source (CD, radio, etc.) to determine if the problem actually comes from the DP-29F or the amplifier. If the noise only appears with the turntable, contact an authorized DENON technician to check the circuits of the built-in phono preamp.

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