This is a set of four dual adaptors, each designed to convert a dual-output BFA speaker connection (as used on most Cyrus amplifiers, and a few others such as Arcam) into a dual 4mm banana connection.
These came about a few years ago when I used to make and sell single BFA to 4mm banana adaptors - of which I made several hundred.
At the time, one of the criticisms of the speaker connectors that Cyrus use is that - compared with screw-down spade connectors - the contact area per BFA connection is relatively small. The spring-loaded cage inside the plug has five small points of contact on the socket. On the lesser Cyrus amps this is probably not an issue, but on the monos especially this could be a constraint.
Hence these were made. Essentially each is a pair of Deltron BFA connectors joined with two solid 5mm bars, each silver-soldered in place - jig-assembled to fit the dual socket perfectly, gold-plated once assembled, and shrouded in modified Deltron outer casings.
The intention is simple: Double the contact area. and provide a simple means to use banana-terminated speaker cable in a Cyrus amp without having to re-terminate the cables.
I'm after £25, plus postage at £1.50 RM 1st Class.
Here's a pic of four pairs "naked" (without the Deltron outers) and below that, two pairs in a Cyrus Mono (this advert includes 4 pairs - a complete stereo set). They are (obviously) not intended to be used "naked" - the pic is just to show how they work. Please note that they protrude from the back of the amp about an inch, so if you are tight for space behind the amp, they may not fit in.
These came about a few years ago when I used to make and sell single BFA to 4mm banana adaptors - of which I made several hundred.
At the time, one of the criticisms of the speaker connectors that Cyrus use is that - compared with screw-down spade connectors - the contact area per BFA connection is relatively small. The spring-loaded cage inside the plug has five small points of contact on the socket. On the lesser Cyrus amps this is probably not an issue, but on the monos especially this could be a constraint.
Hence these were made. Essentially each is a pair of Deltron BFA connectors joined with two solid 5mm bars, each silver-soldered in place - jig-assembled to fit the dual socket perfectly, gold-plated once assembled, and shrouded in modified Deltron outer casings.
The intention is simple: Double the contact area. and provide a simple means to use banana-terminated speaker cable in a Cyrus amp without having to re-terminate the cables.
I'm after £25, plus postage at £1.50 RM 1st Class.
Here's a pic of four pairs "naked" (without the Deltron outers) and below that, two pairs in a Cyrus Mono (this advert includes 4 pairs - a complete stereo set). They are (obviously) not intended to be used "naked" - the pic is just to show how they work. Please note that they protrude from the back of the amp about an inch, so if you are tight for space behind the amp, they may not fit in.
