Hi all,
I have an originally purchased 1977 Marantz 2252 receiver, driving MA-1 speakers. It handles my Denon CD player well, as well as vinyl on an original Sony direct drive turntable, and even the output from a Sony Flat screen TV, but it will not perform with a portable music player, such as an iPod Classic or Hiby R6 Pro.
Inside the Marantz as the volume is advanced (either using the iPod or R6 volume controls or the Marantz volume control), at a certain level *something happens* and there is an easily discernible 'click' inside the unit, at which point the volume drops to near silence. Backing off the volume elicits another `click' at which point the volume returns. The cut out happens at a lower volume than is comfortable for listening, and the sound quality of that signal is very "tinny" and unpleasant.
If the level is left at that cut out point, the volume will intermittently cut out and back in as the level swells and recedes with the progression of the music. It's as if there is some boundary that the inputs from the portables are bumping up against.
The Hiby R6 Pro exhibits the same characteristics, but at a higher volume level than the iPod, as if the R6 is putting out more power than the old iPod, but not enough to push the sound through the Marantz, and the receiver is protecting itself by tripping that relay. It may all be a construct of my imagination, seeing as how I have very little knowledge of electronics.
My question boils down to this: Does the R6 Pro need a DAC to talk to the analog Marantz? Does the R6 Pro need a pre-amp to provide enough signal for the Marantz? Are one or both (or neither) of these needed? The R6 Pro plays fine through the car's stereo via the aux input, but I assume there is a DAC in the dash, since it has a CD player.
AFAIK, the Marantz is still in proper working order, as evidenced by it handling the non-portable inputs. Any advice you could give this fossil would be greatly appreciated.
Many thanks,
Philbin
I have an originally purchased 1977 Marantz 2252 receiver, driving MA-1 speakers. It handles my Denon CD player well, as well as vinyl on an original Sony direct drive turntable, and even the output from a Sony Flat screen TV, but it will not perform with a portable music player, such as an iPod Classic or Hiby R6 Pro.
Inside the Marantz as the volume is advanced (either using the iPod or R6 volume controls or the Marantz volume control), at a certain level *something happens* and there is an easily discernible 'click' inside the unit, at which point the volume drops to near silence. Backing off the volume elicits another `click' at which point the volume returns. The cut out happens at a lower volume than is comfortable for listening, and the sound quality of that signal is very "tinny" and unpleasant.
If the level is left at that cut out point, the volume will intermittently cut out and back in as the level swells and recedes with the progression of the music. It's as if there is some boundary that the inputs from the portables are bumping up against.
The Hiby R6 Pro exhibits the same characteristics, but at a higher volume level than the iPod, as if the R6 is putting out more power than the old iPod, but not enough to push the sound through the Marantz, and the receiver is protecting itself by tripping that relay. It may all be a construct of my imagination, seeing as how I have very little knowledge of electronics.
My question boils down to this: Does the R6 Pro need a DAC to talk to the analog Marantz? Does the R6 Pro need a pre-amp to provide enough signal for the Marantz? Are one or both (or neither) of these needed? The R6 Pro plays fine through the car's stereo via the aux input, but I assume there is a DAC in the dash, since it has a CD player.
AFAIK, the Marantz is still in proper working order, as evidenced by it handling the non-portable inputs. Any advice you could give this fossil would be greatly appreciated.
Many thanks,
Philbin
