Revival of analog LP player (MC cartridge) in my DSP multichannel multi-driver multi-amplifier fully active stereo system for real time on-the-fly vinyl LP listening (and digital recording, if needed)
As briefly described in my post here
, about 15 years ago I have digitized almost all of my around 300 LPs into 192 kHz (or 96 kHz, 44.1 kHz) AIFF format and taken the digitized LP tracks into my digital music library together with all of the other ripped CDs, SACDs (1 bit 2.8 MHz DSD layer), DVD Movies, download-purchased digital music tracks.
At that time, my procedure of LP into AIFF digital files was as follows;
- Properly clean-up/wash the LP,
- Connect the phono out of LP player DENON DP-57L
to my Accuphase E-460's phono stage (actually AD-50 option phono card on E-460),
- Connect Pre-Out of Accuphase E-460 to my PC's Line-In with stereo RCA cable,
- Play LP by DP-57L
with DENON DL-301II
MC cartridge, (for proper search purpose, I should also write DL-301 Mark II, DL-301 II, DL-301 ii , DL-301 Mark ii)
- Digitally record the LP sound using software Audacity through PC's Realtek ADC chip (192 kHz 24 bit),
- Carefully remove, if needed, scratch and/or pop noises by Audacity,
- Divide the Audacity raw project file into each of the LP tracks,
- Export/save the digital tracks in PCM AIFF format into a special (LP digitalization) HDD/SSD folder,
- Add needed tags, almost manually by myself, to each of the AIFF digital files/tracks using JRiver MC's tag editing utilities,
- Add proper cover art in each of the tracks.
All of my vinyl LPs (LP tracks), therefore, have been already thus digitized and stored in my digital music library and they can be very flexibly searched/sorted/played just in the same manner for all the other ripped/downloaded digital tracks.
Consequently, as you may easily guess, nowadays I seldom use my treasure LP player DP-57L+DL-301II
even though it is still in perfectly functioning shape; it has been being detached from my multichannel multi-amplifier system during the past several years. So far, my DP-57L
received overhaul maintenance service twice by Denon Company in Japan.
Edit to add on December 16, 2022
As shared in my post #696, even though the recommended needle pressure for DENON DL-301II (MC) is 1.4 g +/- 0.2 g, I always use it in 1.8 g which I determined through my intensive listening tests about 15 years ago. Accordingly, both of the Q-Damping and Anti-Skating dials are now set in 1.8 position.
Furthermore, many of my beloved LP albums were remastered from the original recorded tapes and re-released in CD and/or SACD formats. I purchased many of them and easily ripped them into my digital music library; in many cases, remastered digital CD release surpasses old LP release in sound quality as you may agree (even though I still keep all the digitized-by-myself LP tracks in the digital music library).
Well, BTW, a few weeks ago, I and my wife were invited to audio room of my audio enthu friend; he is "the jazz fanatic friend" using JBL 4344 driven by nice single stereo amplifier as I briefly touched in my post #438
. We really enjoyed our wonderful and intensive jazz audio session; you may guess the jazz sound by JBL 4344.
He kindly played many CDs and LPs, and I was much impressed by the sound of "recently released" 45 rpm 30 cm HiFi jazz LPs which greatly encouraged me towards possible revival of my LP player DP-57L+DL-301II
into my DSP multichannel multi-driver multi-amplifier fully active stereo system, especially for real-time play (and for HiRes digitization, if needed) of recently released HiFi LPs especially 45 rpm 30 cm ones (at present I have none).
If I would successfully re-install my DP-57L+DL-301II
in my latest setup for real time listening
, then he may bring several of his wonderful 45 rpm 30 cm jazz LPs to my home, and we will have wonderful comparative listening sessions with my multichannel multi-amplifier setup; it would be really an enjoyable session for both families, I believe, since in my setup we can apply very much flexible on-the-fly DSP control/tuning including the XO points and filters, the Fq gain adjustments over five SP drivers (per L and R), as well as the group delay controls. I promised him, therefore, that I will soon definitely realize on-the-fly real time listening of vinyl LPs in my DSP multichannel setup.
Now I cannot use, however, the fairly nice phono stage of Accuphase E-460 (option phono board AD-50) and the nice phono stage of Yamaha A-S3000 since they now directly drive midranges and woofers, respectively. Also I cannot use Yamaha A-S301's phono stage (only for MM cartridge) since A-S301 now directly drives super-tweeters.
These mean that I need one stand-alone stereo phono MM/MC preamp (phono MM/MC equalizer preamp)
, and one stand-alone acceptably-HiFi audio interface (ADC)
for USB digital input into PC via dedicated ASIO route while playing LP by existing DP-57L+DL-301II (MC)
; this time I really hate using PC's on-board Realtek audio chip as ADC (hope you would agree in terms of sound quality).
From budget perspectives, I do not like to spend much extra money on this since I (we) will rarely utilize such on-the-fly real time play of vinyl LPs in my multichannel setup
; in case if I would be seriously impressed by some of recent 45 rpm 30cm LPs, I will of course carefully digitize all the tracks into 192 kHz 24 bit AIFF format to be incorporated into my digital music library for possible daily repeated listening.
Very fortunately, as for stand-alone acceptably-HiFi audio interface (ADC)
, I already have one high-CP (high cost performance) TASCAM US-1x2HR
as shared in my post #369
The specification, especially stereo Line-In and ADC (up to 192 kHz 24 bit), are just nice enough for my current purpose; I have already fully validated and utilized TASCAM US-1x2HR
. You would please also find a nice review article on US-1x2HR
Accordingly, I only need purchasing one stand-alone stereo phono MM/MC preamp
with acceptable HiFi grade performances and of nice CP. After my intensive web surfing during the past week, I purchased one AUDIO-TECHNICA AT-PEQ30
, a product of Japan domestic company.
You can also find nice review pages on AT-PEQ30
including rather intensive measurements;
In my DSP multichannel multi-amplifier audio system, I always use JRiver MC as my audio player as well as the master volume controller. For real time on-the-fly listening to LPs, therefore, I really would like continue using JRiver MC as control/play-back center with master volume control as well as mute/stop functions by mouse operation on PC monitor; the simple "mute/pause" of the sound signal would be indispensable especially during arm/cartridge down and up timings in real time on-the-fly LP listening. And, furthermore, I would like maintaining DSP EKIO's I/O routing unchanged for usual digital library listening and the coming on-the-fly LP listening.
For fulfilment of these demands, JRiver MC's "Open Live"-"ASIO Line-in"
feature is just perfect since JRiver can digitally "hear" on-the-fly any of the ASIO input and can redirect it into the designated Audio Device (in my case into "ASIO4ALL" virtual audio device). Very fortunately, even during this "Open Live"-"ASIO Line-in
" listening, JRiver MC's volume control, mute/pause function are fully active; using the audio interface TASCAM US-1x2HR
, JRiver MC can hear the dedicated ASIO Line-in "US-HR Series ASIO"
in up to 192 kHz which is the maximum bit rate for DSP EKIO. Consequently, I have no need of changing output audio device (ASIO4ALL), and the entire configurations including I/O routing of DSP EKIO can remain exactly unchanged.
In order to avoid any possible interference/intrusion via Window’s WASAPI or “direct sound” route, US-1x2HR should be “disabled” at “Windows - Control Panel - Sound - Playback (Output) Device” and also it should be “disabled” at “Windows - Control Panel - Sound - Recording Device”
, so that US-1x2HR
can be utilized only via ASIO I/O routing by JRiver MC.
Please note that I (we) can connect not only LP player but also any of (old?) "analog line level output only" audio device to US-1x2HR
for on-the-fly listening with my multichannel multi-amplifier setup (and for digital recording, if needed). As for digital recording, I can use any of recording software which can digitally hear the US-HR ASIO Line-in
, such as Audacity and Adobe Audition.
The total system diagram including my LP player is like this;
The monitoring of SP output levels by my DIY 12-VU-Meter Array remains unchanged;
The signal path including DSP EKIO configurations also remains unchanged including XO/EQ and time alignment (group delay) controls;
The "all in ASIO" I/O routing remains unchanged but having the new "UR-HR ASIO stereo line-in
" from US-1x2HR
Of course, my standard best tuned Fq response remains unchanged;
My tentative physical layout is like this; the stacking of DP-57L
on top of ACCUPHSE E-460 has no heat/warm-up issue since E-460 is really cool amplifier and also there is enough space between the two;
The physical SP alignment and listening position remain unchanged;
After my successful initial tests of on-the-fly listening to LPs, I am on intensive comparative listening between on-the-fly listening to LP
(using fully washed/cleaned-up LP) versus ripped CD listening
for same HiFi recorded tracks, for example like these; the lowest pipe sound is 32 Hz with high Fq pipes singing together as I shared in my post #641
accompanying Fq spectrum of Adobe Audition;
I am much impressed by the excellence of the LP sound quality (originally digitally recorded by ARCHIV) and by the still amazing performance/traceability of DP-57L+DL301II
together with the stunning transparencies of AT-PEQ30
; really nice revival of DP-57L+DL301II
in my multichannel multi-amplifier setup, and my nostalgic enjoyment of the "ceremonies" for playing LPs.
I will soon inform "that" jazz enthu friend about the revival of on-the-fly listening to LPs in my setup inviting him again to my audio room together with his nice 45 rpm 30 cm jazz LPs.
Also, I would highly appreciate having your suggestions/recommendations on recently released HiFi 45 rpm 30 cm stereo LPs on classical music, if you know some.