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The Furez the TST-SB series is part of the Furez line of "Sized Right" Tensioned Split Tube Banana Plug Speaker connectors that feature 2 high torque set screws providing the end user an easy and very effective method of connecting their speaker cables. The deep barrel and forward positioned dual set screws allow the insulation of the cable to remain inside the barrel of the connector thus alleviating the issue of exposed bare wire strands while also providing strain relief to ensure the copper conductor contact is not stressed over time. The TST-SB series banana plugs are offered in 3 sizes designed for varying wire gauges and capacities. The TST-SB set screw series banana connectors are designed for the cable builder with moderate cable assembly experience that wants the ability to change out or reuse connectors. Furez Products also has the TST-W and TST-WP series connectors featuring a cold weld crimp and/or solder termination are designed for very experienced cable builders seeking the ultimate in speaker cable connectivity.

Sized Right: All Furez "Sized Right" speaker cable connectors are designed for specific speaker cable gauges and have varying internal diameters to maximize contact of the speaker wire strands within the bore of the speaker cable connector. When a connector is properly sized to the speaker cable gauge, the resulting connection will be optimized for both conductivity and strength. When considering a set screw type connector one must recognize the problem with the one size fits all scenario for speaker connectors. When you tighten down the typical set screw the individual strands of the conductors spread out. Many of these strands then do not make intimate contact with the connector which reduces the efficiency of the conductor to connector contact.

Maximized Contact Area: Our TST "Tensioned Split Tube" Banana Plugs are designed with a a split tube design at the top and bottom of the banana plug. These splits in the tube allow the banana plug to conform to the inner shape of the mating binding post for the entire length of insertion. The result of this intimate mating of the TST banana plug to binding post is increased signal transfer efficiency.

Optimized Contact Pressure: The TST "Tensioned Split Tube" Banana Plugs feature a solid color coded silicone elastomeric tensioning element. This tensioning element provides the spring force required to enable the use of soft high conductivity copper. Traditional banana plug designs rely on the inherent spring force of harder low conductivity copper alloys to provide the required contact pressure to make the banana plug connection. Unfortunately, the copper alloys that have sufficient inherent spring tension also suffer from poor conductivity. The simple and effective design approach of the Tensioned Split Tube (TST) Banana allows our connector to be constructed of C14500 Tellurium 93% IACS Copper.

Maximized Signal Conductivity: The Sized Right, Maximized Contact Area and Optimized Contact Pressure features of the TST Banana plugs are significant factors in maximizing signal conductivity but there are other significant factors to consider as well.

• Solid Single Piece Conductive Path: The Furez line of banana speaker wire connectors are designed to have a single continuous conductive path from the wire to the end of the plug. This eliminates the added contact resistance associated with the common multi-piece design.

• Truly High Conductive Core Materials: The Furez TST Bananas utilize C14500 Tellurium 93% IACS Copper and the SP series spades utilize C11000 100% IACS Copper which are the highest conductivity coppers available for their respective designs. Materials like C36000 Brass, C54400 Phosphor Bronze, C17500 Beryllium Copper are the typical copper alloys used and all have low conductivities in the range of 19% to 40% IACS.

   •  Plating or Lack There of:
          - Bare Copper Non-Plated Connectors: The use of bare non-plated copper connectors provides the natural high conductivity connection of a bare speaker cable termination without the safety hazard of shorting wire strands. Bare electronic grade copper will not turn green or oxidize heavily under normal conditions and some simple handling practices will keep you copper looking and performing quite well for many years.
          - Direct Silver Plated Connectors: The only plating option we currently offer is a 5um thick direct Silver plating without an under layer ensuring the maximum conductivity possible. Silver is the highest conductivity metal at 104% IACS and also has the lowest contact resistance of any metal so why not use it. With proper handling silver plating will out perform any other speaker connector plating.

Furez TST-SB50-NP Series Banana Plug Connector Specifications:
   •  Nominal Size: 5.0mm
   •  Connector ID: 0.196" (5mm)
   •  Max Single Wire: 8 AWG
   •  Max Paired (2) Wire: 12 AWG x 2
   •  Plating: NP - Not Plated - Bare Copper
   •  Machined from C14500 93% IACS Tellurium Copper
   •  Single Piece Electrical Path Construction Maximizes Signal Conductance
   •  TST- Tensioned Split Tube Contact Pressure Near that of Locking Banana Plugs
   •  Maximized Contact Area similar to BFA and Fluted Style Banana Plugs
   •  Deep Barrel and Forward Set Screws Protect Against Shorting
          - Conductor Insulation can be Inside the Banana Connector
   •  Dual Brass 6-40 Torx T6 Set Screws for securing speaker cable
   •  Internal Depth: 0.815” (20.7mm)
   •  Recommend Cable Strip Length 9/16" (14.3mm)
   •  Overall Length: 1.565" (39.75mm)
   •  Sold as a Pair
   •  Includes:
          - Pair Latex Gloves (One Per Order)
          - Reusable Dry Cleaning Wipe for Copper & Silver (One Per Order)
          - 0.216" (5.5mm) Set Screws