This is the simplest case so we put it first. Rega arms and their modified versions (i.e Michell, NAD etc) are easy to replace with an Origin Live arm. All standard length (239mm) Origin Live arms will fit directly into all standard Rega armboard mounts. No additional holes are needed, no modifications, no extra fittings, no VTA adjusters. This easy swap is down to the geometry of Origin Live arms being identical to all Rega arms.
It makes no difference if the Rega mount you have is the later 3 point mounting or earlier single hole mounting. Neither does the model number or vintage of a Rega arm make any difference.
The only question some people raise after fitting their Origin Live arm is that 3 mounting holes remain visible if the mount is the 3 point type of Rega mount. The solution to tidy up the looks is either to fill the 3 holes with dummy round head M3 Allen bolts or you can order a 1mm thick Formica black disc from us to cover the holes > see link Disc to cover 3 Rega mounting holes. Other solutions include simply cutting a cover disc from a black card or thin plastic.
Armboards & Mounting Position
Hole Diameter: You can fit Origin Live arms to any deck but sometimes your armboard may need modification or changing to a new one – (contact a dealer or the turntable manufacturer for the second option). The tonearms require a single hole in the armboard or plinth – from 23mm to 25mm in diameter (23mm is ideal for accurate fit). If the hole in your armboard is say 1mm or more oversize then all you need to do is centralize the arm in the hole. For best performance, you do not want a tight fit and so all you need to do is put a rubber band or wrap a shallow strip of card around the arm base – anything that will act as a spacer – it does not need to be machined sleeve.
Armboard Thickness: Once the arm is inserted through this hole, you secure it with a large nut under the armboard which clamps it in position. The armboard can be any thickness up to 25mm for this to work.
* You need not worry about VTA for Encounter arms and above as they have integral VTA adjustment.
* Arms below Encounter use VTA adjustment on the arm mounting thread itself so arm boards need to be around 20mm or less to allow adjustment.
The distance from the centre of the armhole to the centre of the platter spindle needs to be 222mm plus or minus 1mm. The arms can rotate to be clamped at any angle. The effective length of the arm from its mounting hole centre to the cartridge end of the arm is 240mm. The arm protrusion from the pivot point to the rear is 50mm to the end of the counterweight stub.
For Encounter Arms and Above – If the top of the armboard is around 24mm below the top of the platter then the arm will be at its lowest position for tracking a normal cartridge (17mm body height) and can be raised by a further 14mm
For 12-inch Arms Only – Centre of 23mm – 25mm diameter hole for arm mount to centre of platter spindle is 295.6mm plus or minus 1mm. The length of the arm from its mounting hole centre to the cartridge end of the arm is 309mm. The overhang from the pivot point at the rear end is 50mm to the end of the counterweight stub.
Note: Cartridge alignment is at best only ever a compromise. A cartridge is only aligned at 2 points on the record – For the remainder of positions on the record it’s out of alignment – We say this to save fretting over the last 0.5mm accuracy and give a bit of perspective. Alignment makes an audible difference but on the scale of other parameters, it’s really not a lot.