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Denon DP80 & DP75 Owner's Thread

Hello
The 2300 plinth has two arm boards. The rear one is smaller and good for 9&10" arms and the larger right board can work with most 9-12" arms. They originally came with no holes. You would then drill the hole in the correct diameter and distance for your arm. You would need to measure your existing holes to find the spindle to pivot distance. You can then look on the Vinyl Engines arm site and see all the arms with that spindle to pivot distance.
You may also need to make the hole larger or smaller depending on the arm. I have two larger boards and with one the hole was in the right spot but too large. I used the brass plate in the picture to make it work.
20201224_062510.jpg 20201224_062538.jpg 20201224_062540.jpg
 
If one of your holes is oval it will almost certainly work with any 9&10" SME arm since you can adjust the spindle to pivot distance on the arm itself.
 
And occasionally there may be no hole at all, as is the case with my Denon DK plinth. The armboard of my Denon plinth has no hole because the arm on it is a surface mount design, ie it does not feature a downward projecting post and is meant to mount to a flat surface. So it does not require a clearance hole.
 
@FreedomJazz , if your going to mount a Victor UA-7045 or UA-7082 tone arm the hole is rather large. My armboard inserts are metal and I machine the holes to 1.564 diameter, it's a nice snug fit for the stepped rubber ring under the mounting collar.
The spindle to pivot distance of the arms are 245mm for the UA-7045 and 282mm for the UA-7082.
They are very nice tonearms with a lot of great features. One of the few arms still flying under the radar.

BillWojo
 
Mark 1234 said:
Hello
The 2300 plinth has two arm boards. The rear one is smaller and good for 9&10" arms and the larger right board can work with most 9-12" arms. They originally came with no holes. You would then drill the hole in the correct diameter and distance for your arm. You would need to measure your existing holes to find the spindle to pivot distance. You can then look on the Vinyl Engines arm site and see all the arms with that spindle to pivot distance.
You may also need to make the hole larger or smaller depending on the arm. I have two larger boards and with one the hole was in the right spot but too large. I used the brass plate in the picture to make it work.
View attachment 2075498 View attachment 2075499 View attachment 2075500
Click to expand...

Hello Mark,

I think I understood now, I need to know the diameter of the tonearms that I would like to use, and perforate the arm boards, very straight forward I guess...

As your plinth appears to be totally original, including the arm boards, please let me ask you, your DK-2300 came without perforations?

I'm asking because I saw on the Audio Heritage Japan website, using the google translation, I see the specifications of the DK-2300, they tell that this pinth came with one perforation for the tonearm Denon DA-308, but maybe this info is not totally accurate, and this plinth was also available without any perforation?

from Audio Heritage Japan website:

  • DENON DK-2300
  • ¥ 70,000 (around 1981)
　Commentary　
Universal cabinet designed for twin arms.

Insulite, which has a specific gravity about twice that of plywood, is used for the cabinet, and it has a 70 mm laminated structure.

The armboard is designed to be replaceable.
The DK-2300 comes with 4 armboards such as a perforated board for DA-308.
The armboard is 30 mm thick.

The dust cover was released as an option sold separately. The dust cover AS-5 is made of acrylic with a thickness of 4 mm, making it resistant to howling.


Anyway, is fascinating get into HiFi turntables like this, many thanks for the clear explanation, best regards!

(Oh, I see, appears that DK-2300 came originally with 4 arm boards, one of then with the perforation for the tonearm DA-308)
 
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What you need to establish is the pivot to spindle distance. Mark that and make that the center of the hole for the arm to attach to.
 
Mark 1234 said:
The larger one is very close to 10 5/8 x 5 7/8 x 1 3/16
The smaller 7x 3 7/8 x 1 3/16
Click to expand...
Thanks.
Appears that the larger armboard on the DK-2300 and the single armboard on the DK-300 are the same.
While I can "fit" the required mount for a 12" arm onto the board I would not be able to fit the actual TA as the overhang at both ends would strike the dustcover on the DK-300 plinth. 10" appears to be the max and even then one has to be careful selecting the TA so that overhand at the rear does not interfere with with the dustcover.
 
FreedomJazz said:
(Oh, I see, appears that DK-2300 came originally with 4 arm boards, one of then with the perforation for the tonearm DA-308)
Click to expand...

The Denon 308 has a spindle to pivot distance of 269.5mm. I would think you could look for any tonearm that is very close to this. Usually the hole is a tiny bit bigger so you could move at least a mm each way. You can search using the spindle to pivot distance here. That is amazing of it has three uncut boards. They are impossible to find.
https://www.vinylengine.com/tonearm_database.php
 
MX117.MC7150 said:
Thanks.
Appears that the larger armboard on the DK-2300 and the single armboard on the DK-300 are the same.
While I can "fit" the required mount for a 12" arm onto the board I would not be able to fit the actual TA as the overhang at both ends would strike the dustcover on the DK-300 plinth. 10" appears to be the max and even then one has to be careful selecting the TA so that overhand at the rear does not interfere with with the dustcover.
Click to expand...
I think the plinth may be a lot bigger on the 2300 than the 300. I have a Moerch 12" arm and have tons of room on all sides to the dust cover. My dust cover is maybe a 1/4" in from the edge on all sides. The DP6 spindle to pivot is 294.1mm. The issue I saw with the 2300 was I do not think I could go much larger than 300mm as the hole in the far upper right of the board would than need some material to be cut from the plinth underneath it. Not positive about that though. I did not have to cut the hole. It originally had a larger 12" arm on it.
Happy Holidays!
 
Mark 1234 said:
That is amazing of it has three uncut boards. They are impossible to find.
Click to expand...
Easy to make. Gave some cocobolo to a friend who does wood work and now have three (3). If I had known they were so scarce I would have had him make a dozen. Probably still can do so. If anyone wants the drawing I gave him to make them from, let me know and I'll send along. If I can find (I think I filed it).
Mark 1234 said:
I think the plinth may be a lot bigger on the 2300 than the 300.
Click to expand...
The DK-2300 is considerably deeper and wider than the DK-300. That is the reason I own the DK-300. My rack will not fit the width of the DK-2300.
 
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Have a DP 75 in what I believe is a 3700 plinth, no arm board, got my 401 tonearm from @Mark 1234, (thanks again)
There was plenty of “room” to set up the 401 from a 305.....


VR
Andy
 
Hate to be a whiner, but was hoping to see the full plinth to compare to the DK-300 & DK-2300.

Here are my two spare armboards. Glad you mentioned. I need to wipe on a coat of good oil. Stuff is amazingly dense and oil will darkened it significantly. Something like 2x that of black walnut.armboards.jpeg
 
Hello guys, thanks again for solve my doubts about the Denon plinths.

Please, let me ask you, I'm curious to know if the construction quality of some plinths like the DK-3000 and DK-2300, were built through higher standards when compared with the complete turntables with tonearms by Denon from the same era?

Or the construction is more or less the same, and the Denon focus about sell this plinth only products, were just provide flexibility for vinyl enthusiasts, choose different turntables, tonearms...

I did not found infos about the differences, neither some internal pictures of the plinths of the complete turntables...

I showed a high res picture of the DK-3000 plinth for a friend that works with wood, and he told that the construction is very impressive....

Thanks! best regards to all!
 
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