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Marantz PM6005 amp & Pioneer PL-990 turntable

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28-11-2019 01:05:10 Mobile | Show all posts |Read mode
Hi. I have just changed my amplifier to a Marantz PM6005 and am having issues playing my existing turntable (Pioneer PL-990) through it. I tried plugging the red/white leads from the turntable into the PHONO connections on the amplifier, but the resulting sound is very distorted. When this happened on my previous amplifier (Technics), I used the AUX connection which gave good results regarding sound quality. The Marantz PM6005 does not include AUX inputs, instead it has 'TUNER', 'NETWORK' or 'RECORDER' available. I tried both the 'NETWORK' and 'RECORDER' connections with the turntable, which works (no distortion), but sound quality is not as good as I used to get through the AUX connections on my old amplifier. Do I need to use an external PHONO pre-amp and then use the PHONO inputs on the Marantz?
I'm a bit confused, as the manual for the Marantz PM6005 states "this unit is provided with a PHONO amplifier so that you can directly connect a turntable and play records (only the MM cartridge can be used)".....and according to the turntable manual for the PL-990, it uses a MM cartridge(?)
Many thanks, Steve.
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28-11-2019 01:05:12 Mobile | Show all posts
I do not believe you can use this turntable with a phono pre amp or the phono inputs on your Marantz.

                                                https://www.pioneer-audiovisual.eu/sites/default/files/manuals/PL-990_manual_EN_FR_DE_NL_IT_ES_PT_SEpdf.pdf                       
The manual states it has a phono preamp built in and output approx 0,25v and also talk about equalisation. If it did not have a preamp built in the output would be around 1-5mV.

So, it needs to be plugged into tuner/cd/network connections on the Marantz which have an input sensitivity of 0,2V so should be a good match.

                                                https://www.marantz.co.uk/DocumentMaster/master/PM6005N_ENG_CD-ROM_UG_v00.pdf                       
No reason why it should not sound ok if stylus is ok but this is a pretty basic lower end turntable so don’t expect high class sound.

What was your old amp that it sounded good on. Also have you played around with the bass/treble/loudness on the Marantz to see if you can recreate your old amp sound, it may be that your ears have not had time to adjust to the Marantz yet?
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 Author| 28-11-2019 01:05:13 Mobile | Show all posts
Hi, many thanks for your reply. My old amplifier is a Technics A700 MK3.
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