RB250 or 300??

plysch · 5th February 2006, 08:14 PM

I´m planning to build a second TT, but this time I aim for a Rega arm. Should I go for the 250 or 300? My intentions are to modify them with new cabling, counterweight etc. Any suggestions?

lohk · 5th February 2006, 09:10 PM

Do you probably need a Grace 707 (classical...) or a Syrinx PU2 (very Ittok classical...)?

Holger Barske · 5th February 2006, 09:50 PM

If you want to tweak the arm anyway, there's no need to go for the 300. The most important difference between them ist the massive counterweight of the 300 and the metal rod it sits on (plastic on the 250). The other differences are negligible.

EC8010 · 5th February 2006, 09:54 PM

I haven't looked closely to compare, but I am told that the bearing assembly on the 300 is supported from one side only, whereas the 250 is supported on both sides. If true, the 250 would be the better bet. I also note that there are any number of mods available for the 250...

sreten · 6th February 2006, 08:48 AM

Hi,

the 250 is the one to buy for modding.

/sreten.

lohk · 6th February 2006, 08:49 AM

I agree with Holger. I have very good experiences with the RB250, twaeking is quite easy, and the arm seems to be quite tolerant for significant modifications.
Are you planning a suspension TT or one with a massive base?

plysch · 6th February 2006, 12:17 PM

Thanks alot, then I´ll go for the 250.

Holger Barske · 6th February 2006, 01:28 PM

Quote:

Originally posted by EC8010
... but I am told that the bearing assembly on the 300 is supported from one side only, whereas the 250 is supported on both sides.

This is not true. Arm tube and bearing assembly of both arms are as good as identical. I have cutaway model of the RB 300, I'll try to post some photos later.

sreten · 6th February 2006, 01:53 PM

Because of the rotatable tracking force adjustment set by spring
on the RB300 they are not the same. The "yoke" on the RB250
is one piece, on the RB300 is appaears to be two pieces.

Though for sure the armtubes are identical.

/sreten.

Onvinyl · 8th February 2006, 05:33 PM

Hi,
somebody told me that the RB300 would be the better choice for a suspension-type turntable because the 250 would lack overall weight balance. I don't have them, so it is probably an urban myth...
Rüdiger

5th February 2006, 08:14 PM	#1
plysch diyAudio Member Join Date: Oct 2003 Location: Västergrängsjö	RB250 or 300?? I´m planning to build a second TT, but this time I aim for a Rega arm. Should I go for the 250 or 300? My intentions are to modify them with new cabling, counterweight etc. Any suggestions?

5th February 2006, 09:10 PM	#2
lohk diyAudio Member Join Date: Apr 2001 Location: Austria, near Linz	Do you probably need a Grace 707 (classical...) or a Syrinx PU2 (very Ittok classical...)? __________________ /alohka/

5th February 2006, 09:50 PM	#3
Holger Barske diyAudio Member Join Date: Jan 2001 Location: Ruhrgebiet	If you want to tweak the arm anyway, there's no need to go for the 300. The most important difference between them ist the massive counterweight of the 300 and the metal rod it sits on (plastic on the 250). The other differences are negligible. __________________ Best regards: Holger www.holgerbarske.com

5th February 2006, 09:54 PM	#4
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	I haven't looked closely to compare, but I am told that the bearing assembly on the 300 is supported from one side only, whereas the 250 is supported on both sides. If true, the 250 would be the better bet. I also note that there are any number of mods available for the 250... __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

6th February 2006, 08:49 AM	#6
lohk diyAudio Member Join Date: Apr 2001 Location: Austria, near Linz	I agree with Holger. I have very good experiences with the RB250, twaeking is quite easy, and the arm seems to be quite tolerant for significant modifications. Are you planning a suspension TT or one with a massive base? __________________ /alohka/


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

6th February 2006, 08:48 AM	#5
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, the 250 is the one to buy for modding. /sreten.

6th February 2006, 12:17 PM	#7
plysch diyAudio Member Join Date: Oct 2003 Location: Västergrängsjö	Thanks alot, then I´ll go for the 250.

6th February 2006, 01:53 PM	#9
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Because of the rotatable tracking force adjustment set by spring on the RB300 they are not the same. The "yoke" on the RB250 is one piece, on the RB300 is appaears to be two pieces. Though for sure the armtubes are identical. /sreten.

8th February 2006, 05:33 PM	#10
Onvinyl diyAudio Member Join Date: Aug 2002 Location: Germany	Hi, somebody told me that the RB300 would be the better choice for a suspension-type turntable because the 250 would lack overall weight balance. I don't have them, so it is probably an urban myth... Rüdiger

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What RB250/RB300 counterweight mod?	Shaun	Analogue Source	12	11th November 2008 05:29 AM
RB250 or RB300	planarboy	Analogue Source	40	24th June 2007 08:53 AM
Best variant of Rega RB250 to use?	Glowbug	Analogue Source	0	22nd December 2006 07:54 PM
rb250 printable protractor	dhole	Analogue Source	2	7th April 2005 01:39 PM
TD150 and RB250	frankmalz	Analogue Source	1	17th September 2004 05:59 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read