AVS Forum Special Member
Join Date: Dec 2007
Location: Madison, Alabama
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I'm almost positive that the Sewell, GLS Audio, and Blue Jeans Cable plugs come from the SAME Chinese OEM. The Sewell Harpoon would be similar to the BJC and GLS Audio locking banana plug but the barrel wall on the Sewell and BJC look thinner than the GLS Audio. GLS changed their locking plug barrel because they were originally designed for up to 4 gauge wire in their Generation 1 plugs. The Generation 2,3, and 4 plugs will take up to an 8 gauge wire, which would be a better fit for 18 to 14 gauge wire.
I owned a set of GLS Generation 1 locking and the screws were really too small for 12 gauge wire unless it was folded once. The screws are about twice the length of the Generation 1 screws.
I got out the micrometer and took some measurements rounded to the nearest 1/1000th.
Barrel thickness = 0.09"
Wire hole diameter = 0.25"
Screw length = 0.215"
Plug diameter = 0.158"
Plug length = 0.625"
Denon AVR X7200WA, Emotiva XPR-5, Emotiva XPA-7, Sony XBR 75" 850C, Oppo UDP-203, Roku Ultra.
DefTech BP7000SC (L/R), CLR3000 (C), SM55 (FH), UIW BPZ/A (SB), UIW 75 (TM).
JBL L7 (Sur), EoSone RSR 350 (RH).
PC 2.1 setup. Emotiva Stealth 6, SVS SB16-Ultra sub, Emotiva DC-1 DAC.