Quotes From Backbird review
Audiophile Voice Vol.10 issue 3
By George Graves
"The Blue Point Special has a thin wall aluminium tube cantilver and a fairly standard elliptical diamond stylus of 3.0 by 0.8m. The new Back Bird replaces that aluminium cantilever with one made from longrained boron, a material With an incredibly high stiffness-to-mass ratio. The blackbird's diamond is a much smaller; lower mass, proprietary profile elliptical shape."
"My overall impression of the Blackbird is
one of supreme refinement. Like its siblings, The BPS, The Blackbird
is a good tracker. If anything,it picks up even less surface noise
than the BPS and, like the older design,simply sails through whatever
obstacle course that one is likely to throw at it including the imfamous
Shure test record. On the "Firebird" disc
(Mercury SR90226, Stravinsky, London Symphony Orchestra, Anatal Dorati
conducting. 108g, 45rpm cut), The Climactic and orgaistic "Infernal
Dance of Kastchei and his court" the Black Bird Never misbehaved
once. If it can trackthis 45-RPM cut, it can track anything."
"...The low volume passages eaily get lost in surface noise on most
pressings of this performance, But the Blackbird reveals them in pristine
silence. Where the BPS and Benz Glider exhibited some surface noise on
this cut, the Blackbird revealed a velvety black background from whence
the music just emerged. I attribute this mostly to the somewhat diffrent
stylus shape used by Sumiko for this cartridge. Basicly its riding in
a diffrent part of the groove than the BPS and the Glider, A part not
worn by previous plays. Where the BPS is bright and clean the Blackbird
is mearly clean. While this presentation might seem somewhat dull to
those upgrading from a BPS, One will soon find that this is actually
more realistc and much more musical."
Specifications
Cartridge
Type |
High output MC |
Stylus Type |
Low mass elliptical |
Cantilever |
Long grain Boron |
Dynamic Compliance |
(x10-6 cm/dyne)12 |
Frequency Response |
10Hz-50Khz |
Output Voltage/Channel |
2.5mV |
Internal Impedance |
135 Ohms |
Channel Separation |
35dB @ 1kHz |
Channel Balance |
0.5dB @ 1kHz |
Tracking Force Range |
1.8 2.2 grams |
Cartridge Weight |
9.6 grams |
Mounting System |
Standard 0.5” hole spacing |
