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Gear / Technical Help => Recording Gear => Topic started by: gormenghast on June 14, 2019, 08:01:46 PM

Title: Marantz PMD661 MKIII Line In 2
Post by: gormenghast on June 14, 2019, 08:01:46 PM
I purchased this recorder to digitize some albums I have and upon first test I'm finding I have to turn the gain knobs almost all the way up to get decent levels ( 10 and banging on 6 ) using the continuous gain.  Using ALC the recorder is blinking red.  How can I get more levels using the continuous mode or do I have to increase levels in post?  I'd rather not use ALC.  I don't see how or if I can or am attenuating the level coming in.  Music is coming out of my receiver direct to line in 2.

Thanks for any help.
Title: Re: Marantz PMD661 MKIII Line In 2
Post by: MakersMarc on June 14, 2019, 09:52:49 PM
I purchased this recorder to digitize some albums I have and upon first test I'm finding I have to turn the gain knobs almost all the way up to get decent levels ( 10 and banging on 6 ) using the continuous gain.  Using ALC the recorder is blinking red.  How can I get more levels using the continuous mode or do I have to increase levels in post?  I'd rather not use ALC.  I don't see how or if I can or am attenuating the level coming in.  Music is coming out of my receiver direct to line in 2.

Thanks for any help.

Maybe set to -24 instead of -18? -18 is the right setting for everything.
Title: Re: Marantz PMD661 MKIII Line In 2
Post by: jefflester on June 15, 2019, 04:28:22 PM
I purchased this recorder to digitize some albums I have and upon first test I'm finding I have to turn the gain knobs almost all the way up to get decent levels ( 10 and banging on 6 ) using the continuous gain.  Using ALC the recorder is blinking red.  How can I get more levels using the continuous mode or do I have to increase levels in post?  I'd rather not use ALC.  I don't see how or if I can or am attenuating the level coming in.  Music is coming out of my receiver direct to line in 2.

Thanks for any help.
You need to use that receiver line out connection to go to the recorder, you can't record directly from the turntable outputs. There needs to be a phono preamp, that is what is built in to the "phono" inputs on your receiver. Not only does it provide gain, it also provides necessary equalization.

https://www.audioadvice.com/content/what-is-a-phono-preamp/
https://en.wikipedia.org/wiki/RIAA_equalization



Title: Re: Marantz PMD661 MKIII Line In 2
Post by: gormenghast on June 15, 2019, 08:12:18 PM
I purchased this recorder to digitize some albums I have and upon first test I'm finding I have to turn the gain knobs almost all the way up to get decent levels ( 10 and banging on 6 ) using the continuous gain.  Using ALC the recorder is blinking red.  How can I get more levels using the continuous mode or do I have to increase levels in post?  I'd rather not use ALC.  I don't see how or if I can or am attenuating the level coming in.  Music is coming out of my receiver direct to line in 2.

Thanks for any help.
You need to use that receiver line out connection to go to the recorder, you can't record directly from the turntable outputs. There needs to be a phono preamp, that is what is built in to the "phono" inputs on your receiver. Not only does it provide gain, it also provides necessary equalization.

https://www.audioadvice.com/content/what-is-a-phono-preamp/
https://en.wikipedia.org/wiki/RIAA_equalization

I am using the receiver line out.
Title: Re: Marantz PMD661 MKIII Line In 2
Post by: jefflester on June 15, 2019, 10:38:48 PM
D'oh, sorry. By "Line In 2" I thought you meant a setting of 2, not realizing that is what the deck's 1/8" input is labelled.
Title: Re: Marantz PMD661 MKIII Line In 2
Post by: jerryfreak on June 18, 2019, 11:57:48 AM
I purchased this recorder to digitize some albums I have and upon first test I'm finding I have to turn the gain knobs almost all the way up to get decent levels ( 10 and banging on 6 ) using the continuous gain.  Using ALC the recorder is blinking red.  How can I get more levels using the continuous mode or do I have to increase levels in post?  I'd rather not use ALC.  I don't see how or if I can or am attenuating the level coming in.  Music is coming out of my receiver direct to line in 2.

Thanks for any help.
You need to use that receiver line out connection to go to the recorder, you can't record directly from the turntable outputs. There needs to be a phono preamp, that is what is built in to the "phono" inputs on your receiver. Not only does it provide gain, it also provides necessary equalization.

https://www.audioadvice.com/content/what-is-a-phono-preamp/
https://en.wikipedia.org/wiki/RIAA_equalization

wow i never knew about the EQ

thanks for the info

was that the reasoning behind "emphasis" on early digital?
Title: Re: Marantz PMD661 MKIII Line In 2
Post by: DSatz on June 25, 2019, 12:12:21 AM
> was that the reasoning behind "emphasis" on early digital?

No, it was just a way to squeeze ~6 dB more signal-to-noise performance out of primitive (by today's standards) A/D converters. Similar techniques had long been used for similar reasons in various analog technologies, particularly FM radio broadcasting and analog tape recording.

--best regards