Luke Pfeiffer's P5 upgrades

" I have struggled with wobble in sustained notes with this table (P5) since I got it .... " said Luke Pfeiffer of Fremont, Michigan.

Recently he did the following upgrades to his P5 TT and let's hear what he says: 

1.  Aluminium sub-platter 
2. Dual pulley and silicone belts


Greetings and hope all is well. The items arrived back on 7/10 and I finally got everything installed the weekend of 8/7. The differences were immediate and very noticeable, I have struggled with a wobble in sustained notes with this table since I got it, adding the TT PSU helped a little, but the sub platter and new pulley have now eliminated it completely, when I heard that I was amazed. The table felt more solid in its sound presentation after the installation, everything seems to have better timing and when anything sustained comes across the speaker I still smile a little even though its been 5 weeks and several hours of listening time. 

As for the install itself, it was surprisingly easy, the pulley swap was a little intimidating, but once I actually did it, I was amazed at how quick and easy it was, your pulley puller makes this an easy task. The subplatter is beautiful and once again that was a snap to swap out, and you provide everything needed. 

I just picked up several new disks and have been listening to the newly released Black Crows Live albums as I type this up, not sure if it's the new gear or what, but the dynamics on these albums through my system are amazing, you can feel the back up singers to the left rear of the band, and Rich off to Chris's right. I have a modest hi-fi with my Rega P5 and TT PSU plugged into a Vincent PHO-8 phono preamp. That is plugged into a Vincent SA 31/SP 331 pre/amp combo running a pair of Focal Chorus 826V's. Everything is connected with AudioQuest wires. 

Again, these two upgrades made a huge difference with my table and the audible differences were very noticeable to me and all in good ways. I would not hesitate to recommend your products to anyone and look forward to future purchases myself

Many thanks, 
Luke Pfeiffer 

Thanks Luke!

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Rega R.I.P.6...... to Lazarus6 !

New acrylic plinth for Rega tweakers 

Special request from Andrew of UK has prompted me to make and introduce to you today another version of acrylic plinth which not only enhances the look of your turntable, but also bringing to you beautiful music. Besides, it retrofits your stock Rega lid. 

Let's take a look at Andrew's comments :

My main turntable used to be an RP6..... 

When I saw the recent Vinyl Engine post from endrik35 in Manilla (My First Rega upgrade - groovy baby!!) I decided I had to do something similar but I wanted the plinth completely isolated from the Rega cover. 

When I originally contacted Michael Lim, he told me that the ‘RP8-RP10’ type plinth that endrik35 showed was in fact a thin 2.5mm shim on top of his standard 18mm clear rectangular acrylic plinth. I then asked if he could use the same CNC programme to cut the18mm material down as well. Anyone who has purchased from Michael previously will know what a helpful, customer friendly man he is so he said he would check and come back to me. 

A few weeks later he showed me a black prototype that he was testing which looked to be exactly what I wanted so I ordered the orange bonded plinth c/w upper and lower braces in ‘brushed’ finish, mounting feet, the clear outer frame plus the motor isolation kit. 

My original RP6 was only using the plinth, bearing housing and glass platter as I had changed everything else over time. I had borrowed an acrylic platter some time ago and used it for over a week but felt it took a little transient attack away from my music, hence I have kept the glass platter. 

- Audiomods Series V arm 
- GT Reference subplatter & bearing 
- Michael Lim double pulley 
- New belts 
- Funk platter mat with leather bonded addition plus a thin SRM-Tech soft pad between this and the glass 

....Michael Lim motor isolation 
....Michael Lim plinths & feet 

Within a few days of ordering, Michael confirmed despatch and four days later the motor isolation base arrived. I decided to fit this to the RP6 whilst awaiting the new plinth, just so I could evaluate this separately: 

1. Motor isolation base 

Very easy to fit, following Michaels’ detailed instructions. What surprised me during removal was the simple sticky pad holding the motor to the Rega MDF plinth which was easily prised apart with a screwdriver. The RP6 has given me a lot of pleasure in its’ former state so I am impressed that something so basic could sound so good. 

Whilst I was at it, I extended the cables between the motor and PCB board so this could be moved away from the turntable itself (in the housing adaptor supplied as part of the kit). 

Once the motor isolation kit was in place, there was an immediately noticeable tightening and greater clarity to the lowest bass notes and that has persisted with every LP played since fitting this. Everything is also more sharply positioned within the soundstage - I was not expecting for this to improve quite so dramatically with vinyl playback. Upgrading the arm on my turntable and then adding a new sub platter and Lims’ double pulley & belts were previously the most positive changes I had made but isolating the motor had taken things a lot further (I play my system every day when at home and I know the sound signature intimately so this is no understatement). Instrument and performer positioning hung within a more believable 3D soundstage on appropriately mastered recordings and this is very addictive to listen to. 

I will go so far as saying that in my opinion, isolating a Rega motor with Michael Lims’ isolation base is a must-do upgrade that every owner should consider. I am pleased that I had several days to hear the impact this had made before changing the plinth too. 

2. The Plinth 

This arrived just over a week after despatch, very well protected and packaged. To ensure maximum rigidity, Michael had even fitted the piece of 5mm ’surplus’ acrylic between the inner and outer plinths - very considerate and professional (It looks like a piece of curvy- funky acrylic art and I cannot bring myself to throw it away !) 

The orange 2.5mm top piece had been bonded by Michael as we had agreed using a special adhesive to ensure no air gap or potential for flexing. I bonded the braces myself with a clear adhesive (spread carefully and thinly) and screwed the bearing housing mounting feet, the allen-key brace screws and then the arm whilst the glue was still pliable so both braces are very securely attached. 

During this process, I took great care to achieve the same 221.5mm pivot-spindle distance that my Mint arc protractor is designed for. I also had to align the outer frame and cover to ensure that the arm micrometer fitted exactly in the same place as previously (as I have a small transparent ‘turret’ glued to the cover above a circular hole in the top of the lid). 

The rest of the turntable assembly followed easily (I have modified a few Regas’ in my time) and I checked with both spirit level and bubble level that the plinth, arm and platter were all exactly parallel. They were, first time. The moment of truth came when I clipped the AT150ANV cartridge stylus back in (removed during assembly) and checked alignment with the protractor. Even under 30x magnification, it fell exactly on the arc so no adjustment was needed, the pay-back for being precise in mounting the arm & a big time- saver. 

3. The outer plinth 

My music room is quite cluttered, I probably don’t dust/vacuum often enough and my wife refuses to enter ! Also, the carpet seems to generate a lot of wool fibres so playback with the lid closed is very important to me, especially as every record is RCM cleaned. I already mentioned the 5mm spacer - this is the gap between both plinths and as the motor is now isolated this gap ensures that the closed cover is isolated from the platter/arm as well. 

Rather than additional heavy looking feet for the outer plinth as this is just a support platform for the cover, I have made some tapered transparent acrylic feet of the correct height and these are tapped and screwed to the three M6 threads fitted to the frame underside. 

Everything is now completed and IMO it’s a fabulous looking piece of kit. Even my wife who has ‘tolerated’ 35 years of various bits of hi-fi in the living room expressed her first ever positive opinion, going as far as saying it is a real pity that this has to stay in my man- music cave - praise indeed ! 

As I write this, I have played half-dozen-or so LPs and am extremely happy. The tightness to the bass I mentioned previously is still there and the only way I can think to describe the finished article is that bass is now no longer congested and each instrument or note seems to be independent to everything else, both tonally and within the soundstage. Previously vinyl and digital sources in my system sounded extremely close but now the sense of openness, ‘air’ and soundstage imaging with vinyl has taken quite a leap ahead, to say nothing of that tighter, clearer bass. Exactly what I wanted.

Read Andrew's post in Vinylengine :  Rega R.I.P.6…… to Lazarus6 !

Thanks, Andrew for sharing your experience with us.

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Garnet of Calgary, Canada has recently added some of my upgrades to his RP6. He is very happy with the sonic improvement. Here's his feedbacks : 


Part 1 : Dual pulley, adjustable aluminium feet and acrylic platform upgrades:

hello michael.... 

i just installed my double pulley system,the new feet and the acrylic base

The installation when smooth and HOLY COW what an improvement..bass mids and high end really came alive ...i am also using a delrin ceramic platter and a groove tracer sub platter and new counterweight...but i think the double belt system from you really bring my turntable into a another more a mere rega rp6 now this is REGZILLA....can not thank you enough.....

Garnet Moffat...

Part 2 : Acrylic Plinth, top and bottom bracings and motor isolation base :

hi michael...

got my parts today and i installed them...

the acrylic plinth upgrade was almost too easy to install it sure helped the sound and looks ..lots of audiophiles in Calgary are more than impressed with my new turntable and i expect they will follow and do the same thing to their  Regas....

WOW what a upgrade...the only thing i had to do is to replace the 2 round head machine screws with flat head machine screws on the top of the plith holding down the bracing that is because the delrin plater sits so low it was rubbing on the screws..... now that i am finished i will send you some photos in the near future.....thank you very much.....

Garnet Moffat....

ps  having the motor housing sure did make a big change

Thanks Garnet ! 

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Dual pulley and aluminium sub-platter have been the most popular upgrades for Rega folks. Many began their tweaking journey with these two components. Some may go on after that .... seeking for more improvements. And the others may just stop here considering the rest unnecessary. 

What about counter-weight? Is it listed to be part of your upgrade project? I remember it was not on the top of my list either when I first started to tweak Rega TT.  But when I first set up my underslung counterweight to test, my wife "wow" at the big improvement! 

You have to try yourself to believe it!

Glad to know Yann from France has agreed with me too!

Dear Michael

Your counterweight is a great improvement! All is cleaner and bass is now controlled. Many thanks for your work. 

I think I'll go back to you for other purchase... 

Kind Regards 

Thanks , Yann!

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Pro-ject Debut Carbon is a good budget turntable to commence one's analog experience. It's equipped with a carbon tonearm. With some simple tweaks you can further enhance it's performance.

Motor isolation base upgrade is highly recommended for this Pro-ject TT. This upgrade not only isolates the TT from motor vibration but also improves the energy transfer to spin the sub-platter/platter in a more steady pace, resulting in overall sonic improvement. Many have tried and are happy with the sonic improvement!

Scott's of Harlington, UK , had recently upgraded his Pro-ject Carbon Debut with my motor isolation base and he found the improvement to be significant! 


I just installed the isolation base to my Pro-Ject Debut Carbon; the improvement is significant. I wasn't really suffering from any rumble, but what little background noise there was has vanished altogether. More importantly, everything seems a lot clearer - the timing is better, as is the separation between instruments. I would thoroughly recommend this upgrade. 

 It was easy to install, too - I just drilled a small pilot hole, then used a big drill bit to cut enough of the plinth away to accommodate the posts sticking up from the isolation base. The only slight issue was that the screws provided were much too long; I had to saw them down (and file the bottom thread), but no biggy - it's not hard to get hold of shorter M3 screws. 

 Kind reagrds, 

Thanks, Scott!

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