Grado Reference1 Reference Cartridges

The newly redesigned Master1 and Reference1 cartridges have had their coil design reconfigured, and the effective moving mass of their generating system has been reduced by 17%. All this is hand-assembled within a machined, new processed, Australian Jarrah wood housing. The Master1 and Reference1 models use a five piece OTL cantilever technology achieving an additional 5% tip mass reduction over the Platinum1 and Sonata1 models. The coils are wound with ultra-high purity long crystal (UHPLC) oxygen free copper wire. The Master1 model is mounted with Grado's specially designed nude elliptical diamond, and the Reference1 model uses Grado's true ellipsoid design diamond.

Frequency Response	10-60
Principal	MI
Channel Separation at 1KHz	40
Imput Load	47K
Output at 1KHz 5CM/sec.	5mV
Recommended Tracking Force	1.5
Stylus Type	E
Inductance	45mH
Resistance	475
Compliance CUs	20
Stylus Replacement F=Factory	F
Mounting	S
Weight	6.5