Guides, Hifi Journey, Overview, Turntables

Luxman PD-441 and PD-444

Background history

Back in 2008 the vintage-hifi people in Denmark (who at this time were gathering in the vintage-subforum of hifi4all.dk. Years later we broke free and created vintagehifi.dk) met up at Hald Manor House in Jutland for 2 days of vintage-hifi show and tell coupled with drinks and good music.

This was the first annual meeting of what should become a yearly event and now I look forward to the yearly event with a lot of old friends as much as I look forward to Christmas.

Back in 2018 I was just a young man who had been interested in vintage-hifi for some time and who knew a handful of the people in this group. I went to Hald and one of the presentation where 2 of my now dear friends who collect vintage Marantz equipment. This presentation was an eye-opener and has put me on a trajectory I am still on, in regards to my Hifi-journey. The presentation was a showcase of some of the very finest and most rare Marantz equipment, including a complete tube setup Marantz 7 and 8B but also the early Model 15 and 7T.

The loudspeakers were the JBL L100 Century and JBL 4311 (same speaker but different enclosure) and the sources was a big Luxman PD-444 turntable with Fidelity Research FR-64S and Ortofon MC-30 cartridge. Because of an issue with table-space, the turntable was placed directly on top of the speakers – not something anyone would recommend.

The impressive Marantz presentation with the PD-444 on the speakers on the right

The first number that was put on was Corner Pocket, played by The Harry James Orchestra on the Sheffield Lab direct to disc “The kings James version” record. I was simply blown away!

Without any subsonic filtering there wasn’t any feedback into the turntable. The volume was loud and everything stood clear and perfect. It sounded good – very good!

From that event and in many years to follow, I have been collecting towards that experience. The first was the JBL L-100 speakers (I have had 4 sets before I upgraded to the 4343 speaker), I’ve had Marantz 250 and 3300 and Marantz 16 and 33 and for over 8 years I’ve had the Luxman PD-441 turntable (the smaller version of the PD-444), first with a SME 3009 Series II tonearm, later with the Fidelity Research FR-64 tonearm, both sporting the MC-30 by Ortofon.

A couple of months ago, I got the chance of buying the PD-444 showcased at that very first event with the Fidelity Research FR-64S tonearm. I am over the moon – there isn’t a record player I have ever wanted more than this particular direct drive turntable. It is a beautiful and very advanced turntable, and the best part – It fits a 12″ tonearm natively while at the same time having a lid! something only a very few turntables do.

The Luxman PD-441 and PD-444 turntables

Both Turntables were a part of the same series released in October 1977. The PD-441 and PD-444 are made the exact same way, and is for the most part identical.

The chassis is made of iron slabs around a plywood core and with the big profiled aluminium top. The platter is heavy (2.5Kg!), but the system also contains what they market as “Load-free spindle” This is a system where the main bearing spindle contains a magnetic counter-force, making the load on the bearing 1/5 of the mass of the platter. This way the bearing is not worn in the same way as a normal bearing, but you retain the high moving mass of the heavy platter.

The drive system is direct-drive with a quartz-locked speed control, which ensures a fast and trouble-free operation. Any micro-jitter from the Quartz system are mitigated in the heavy platter and from my measurements (of a 40 year+ system) I measured +/- 0.014% Wow/Flutter on the PD-441 and 0/-0.011% on the PD-444. Which is well within any kind of acceptable specification ( and below the spec of less than 0.025%)

The large cover is made of three pieces of think acrylic sheets, and is bent on the front and back cover. The hinges are spring loaded and is able to hold the large lid of the PD-444.

The motor drive was made by Mitsubishi and bears two names: MDS-102C and MDS152C – on my machines one code is stamped on the top of the platter-bearing assembly, and the other code is on a label on the motor-cover underneath. Some references these codes to mean either MKI or MKII – but that would be weird as my original machines are sporting both.

The Quartz-locked system can need some technical attendance after all these years, but the schematic is simple and should be rather easy to service.

The two sidepanels on the chassis is made of MDF panels covered in vinyl imitation rosewood. These are usually damaged in some way, minor or major but because of the weight of the table, the corners of these veneered pieces are often torn or damaged slightly. For my table I am thinking of making a couple of extra sides with real veneer.

Luxman PD-441

Luxman PD-444

The Luxman PD-444 is identical to the PD-441 except it contains another slot for a 12″ tonearm and a switchable tonearm selector, making it possible to run two tonearms through the same step-up or phono receptacle on your preamp.

Armboards

Both the PD-441, PD-444 and the PD-555 turntable all uses the same armboards. The armboards all made of a carrier base called TD-X and separate armboards that you put on top and screw in from the underneath. There are a total of 4 different of these armboards, each one supporting a different group of tonearms – it should be notet that the only difference between TP-LH and TP-LS is that the TP-LS features 4 tapped screw-holes for mounting SME tonearms, the hole diameter is the same.

Copied from the tonearm manual, available from Vinylengine

Since the tonearm base can be moved and fixed in placed in the slot it sits in, the turntable supports a wide range of different tonearms, both the ones used for example in the Tonearm manual shown above, but also a lot of newer tonearms.

(2) Comments

  1. John Chamberlain says:

    Hi, I am thinking that you are in Denmark? I am in England and have a problem with my PD441 and wondering if you know of anybody in England who could help me. The unit has worked perfectly for the past two years but has just stopped, no light, no power? Have checked plug but that is the limit of my ability.
    Regards John Chamberlain.

    1. Hi John
      Very sorry to not reach out to you earlier – the email notification setup on my blog is apparently not entirely fine-tuned.
      I will try and help you here with what I would do as a first measure, before sending it away to a technician.
      As I am based in denmark i cannot help you directly, and my network doesn’t span overseas unfortunately 🙁

      Edit:Please verify that the issue is not the mains switch underneath that has mistakenly been switched off 😉

      But! Based on your finding I would think it could be a simple fuse issue:

      1. Remove the Lid, Tonearm and platter from your turntable.
      2. Turn over the unit, placing it on two blocks of wood covered in a towel to ensure it is not restng on any buttons, light fixtures and scratching the Aluminium top-plate.
      3. Underneath the turntable, you’ll find a rectangle block, held on by 4 screws – remove these and gently lift the box, taking precautions not to strain the wiring to and from the box.
      4. On the inside there will be a fuse with a marking of the fuse amperage.
      5. Take out the fuse and look at the fuse through a tiny light, or check for continuity with DMM. (Or skip to step 6 directly)
      6. Replace the fuse with a new fuse.

      If this is the case and the turntable works – fine, but I one could ask the question, why did the fuse blow? – it could be many things – old age, a spike on the mains or it could be to protect an otherwise faulty unit.
      Because of this last reason i urge you to only replace with the same amperage.

      If it works, and then the fuse blows again – it might be time for a delicate recap – ask around on Audiokarma for a good and reputable tech near you – it is a small investment and the difference in price between a good and bad tech is negliable compared to the value of your turntable.

      I’ll send an email containing this message as well – take care

      best regards
      Soren Iversen

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