Thread: Magna Audio's custom-made counterweight balance and armboard service!

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30-09-2013, 18:44 #11
Magna Audio

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Trade: Magna Audio
Join Date: Mar 2009
Location: The New Forest

Posts: 1,915
I'm Steve.
An update on the Elite Cranfield phonogram "The Rock" as the label on the back states...

Pulley made.

Using a strobe and checking the speed after 30mins warm up and with the stylus in groove I had a few goes at shaving fractions off to get it spot on.

Another view

The slight barrelling of the pulley drive surface has worked well. The belt stays spot on in the pulley centre once the motor angle is adjusted.

The TT takes quite a while to speed stablise. The owner assures me this is normal. Once it has stabilised it is a very sweet sounding deck with Ortofon Cadenza blue cart. BTW, this is a 33 1/3 rpm only deck.
The owner has two of these decks the 2nd one will be done shortly

Last edited by Magna Audio; 31-10-2017 at 12:49.

System: Turntable : SP10 MKII slate plinth, Custom Ebony tonearm board, Arm : Fidelity Research FR64s, Cartridge : SPU Royal N. SUT : Lundahl 1:13. Phonostage : Icon Audio, Streaming RPi/Kali reclocker -> I2S -> DSP XO / Pre / 4 DAC's : WAF Najda, 5 Poweramps : 3 x EL84 SET's, 2 x D class amps on bass channels, Speakers : 5 way front loaded horn system: 2 X Tapped sub 15" LF drivers / 2 X Exponential mid bass 15" drivers / Tractrix 200Hz mid horns with JBL2482's, / Tractrix 550Hz upper wooden horns with factory refurb'd Vitavox S2's / Raal Lazy Ribbons as high frequency tweeters. Wires: good silver or good copper where best suited. DIY RCM.

Maker of tonearm boards, armpods, Tannoy GRF style speaker cabinets, horn speakers, counterweights and more.
For more information about my creations and products please click below

http://fosworld.wixsite.com/magna-audio & on Instagram https://www.instagram.com/magna_audio/

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