the premier brand in low profile audio connectivity
SquarePlug offers the most comprehensive range of low profile audio connectors in the industry. The product line consists of 14 different models, set to cover virtually every possible application where low profile balanced and unbalanced audio cabling is required.
Besides the obvious small form factor and a heavy duty all-metal construction advantages, SquarePlug connectors provide a set of functionalities not found elsewhere, such as:
An improved strain relief design preventing any axial and lateral cable movements, thus keeping the solder joints completely stress-free
An elegant cable identification/tracing system built around a set of colored screws —2 screws per connector, 10 distinct colors— that can be retrofitted on all SP connectors. 55 distinct combinations can be built this way
SquarePlugs are protected by domestic and foreign patents
SquarePlugs are protected by domestic and foreign patents
SP SERIES
LOW PROFILE HEAVY DUTY 1/4" MONO AND STEREO RIGHT ANGLE CONNECTORS
SP400
SP400 is a modern and functionally superior iteration of the original ‘pancake’ design introduced by Switchcraft in the 1960’s. Since its inception in 2017, SP400 and all subsequent SP and SPS models have set a new standard in low profile audio connectivity.
THICKNESS
8.3 MM
0.32 IN
WIDTH
17 MM
0.67 IN
HEIGHT
28 MM
1.10 IN
SECURES CABLES BETWEEN
4.0 — 4.6 MM
0.16 — 0.18 IN
SP500
SP500 has the exact same design as the SP400 except that it allows for larger diameter cables to be used.
THICKNESS
8.3 MM
0.32 IN
WIDTH
17 MM
0.67 IN
HEIGHT
28 MM
1.10 IN
SECURES CABLES BETWEEN
5.0 — 5.6 MM
0.20 — 0.22 IN
SP600
SP600 is slightly bigger than the SP400/500. It's designed to work with cables up to 6.3mm OD, making it the perfect choice for instrument cable assemblies
THICKNESS
9.7 MM
0.38 IN
WIDTH
18.5 MM
0.73 IN
HEIGHT
28 MM
1.10 IN
SECURES CABLES BETWEEN
5.8 — 6.3 MM
0.22 — 0.25 IN
SP550-S
SP550-S is the TRS variant of the SP400/500. It features a slightly larger cable opening than the SP500 to accommodate balanced cables up to 5.6MM OD.
THICKNESS
8.3 MM
0.32 IN
WIDTH
17 MM
0.67 IN
HEIGHT
28 MM
1.10 IN
SECURES CABLES BETWEEN
5.0 — 5.6 MM
0.20 — 0.22 IN
SP650-S
SP650-S is the TRS variant of the SP600. It can accommodate cables up to 6.3mm OD, which provides with the SPX SERIES a unique TRS/XLR pairing solution for low profile balanced cable assemblies.
THICKNESS
9.7 MM
0.38 IN
WIDTH
18.5 MM
0.73 IN
HEIGHT
28 MM
1.10 IN
SECURES CABLES BETWEEN
5.8 — 6.3 MM
0.22 — 0.25 IN
Main Features Of The SP Series
Super low profile design for highest packing density.
Unmatched strain relief and EMI protection: the SP series features a flat smooth cable channel that’s perfectly snug with the right sized cable providing equal pressure around the entire cable, thus insuring proper shielding continuity and effective strain relief action.
Solder tabs for tip, ring and sleeve connections for quick and easy soldering and de-soldering.
Serviceable, Heavy Duty all-metal construction with no plastic parts.
Available in silver and all-black finish.
SPS SERIES
LOW PROFILE HEAVY DUTY 1/4" MONO AND STEREO STRAIGHT CONNECTORS
SPS4
SPS4 is the lowest profile 1/4″ straight connector with strain relief in the industry. It features a proprietary two-screw cable clamping mechanism that can be retrofitted with a set of anodized screws to provide the most comprehensive color coding identification system found on any connector on the market.
DIAMETER
13 MM
0.51 IN
LENGTH
20 MM
0.78 IN
—
—
—
SECURES CABLES BETWEEN
4.0 — 4.6 MM
0.16 — 0.18 IN
SPS5
SPS5 is identical in every point to the SPS4 except that it accommodates larger diameter cables.
DIAMETER
13 MM
0.51 IN
LENGTH
20 MM
0.78 IN
—
—
—
SECURES CABLES BETWEEN
5.0 — 5.6 MM
0.20 — 0.22 IN
SPS6M
SPS6M is intended to be used on instrument cables, where small size is not imperative. It offers the same design as the SPS4/5 connectors, including the signature circular groove for increased grip as well as the 2-screws strain relief / color coding system.
DIAMETER
13 MM
0.51 IN
LENGTH
30 MM
1.18 IN
—
—
—
SECURES CABLES BETWEEN
5.0 — 6.3 MM
0.20 — 0.25 IN
SPS6-S
SPS6-S is our straight TRS plug similar in design to its SPS4/5 TS counterparts. It can accommodate balanced cables with an OD up to 6.3mm, and pairs perfectly with our short body XLR plugs for 1/4″ TRS – XLR cable assemblies.
DIAMETER
15 MM
0.59 IN
LENGTH
22.5 MM
0.88 IN
—
—
—
SECURES CABLES BETWEEN
5.0 — 6.3 MM
0.20 — 0.25 IN
SPS7-S
SPS7-S was specifically designed for Y or insert cables assemblies. It features a patented oblong clamping system that offers an effective strain relief but also maintains the cables parallel to each other, thus preventing any stress build-up on the solder joints induced by the cables tendency to fold/twist on one another.
DIAMETER
15 MM
0.59 IN
LENGTH
22.5 MM
0.88 IN
—
—
—
SECURES 2 X CABLES BETWEEN
3.0 — 4.0 MM EACH
0.12 — 0.15 IN EACH
Main Features Of The SPS Series
Super low profile design for highest packing density.
Unique 2-screw cable clamping mechanism that offers optimal strain relief while allowing for a very compact connector body to be used.
Unique oblong clamping system that offers optimal strain relief and prevents cables to twist on one another in dual mono cable assemblies.
Signature ring groove for effortlessly plugging in and out.
Solder tabs for tip, ring and sleeve connections for quick and easy soldering and de-soldering.
Serviceable, Heavy Duty all-metal construction with no plastic parts.
Available in silver and all-black finish.
SPX SERIES
LOW PROFILE HEAVY DUTY STRAIGHT AND ANGLED XLR CONNECTORS
SPX-M
SPX-M is a 3-PIN Male XLR connector unlike anything else on the market. Built equally for studio and stage applications, SPX-M/F is designed to deliver high performance, maximum reliability and unmatched functionality in a small package. It’s the perfect solution for low clearance situations and/or when a true heavy duty connector is required.
DIAMETER
22 MM
0.86 IN
LENGTH
44.5 MM
1.75 IN
PROTRUDES BY WHEN CONNECTED
30.5 MM
1.18 IN
SECURES CABLES BETWEEN
4.5 — 7.0 MM
0.18 — 0.27 IN
SPX-F
SPX-F is the female variant of the SPX-M
DIAMETER
22 MM
0.86 IN
LENGTH
48.5 MM
1.90 IN
PROTRUDES BY WHEN CONNECTED
34.5 MM
1.35 IN
SECURES CABLES BETWEEN
4.5 — 7.0 MM
0.18 — 0.27 IN
SPXA-M
SPXA-M is our take on a low profile angled XLR connector. It feature the same heavy duty construction approach as the straight XLRs and all other SquarePlug connectors. Our proprietary cable clamping mechanism provides effective strain relief action to cables ranging from 2.5mm OD to 6.5mm OD! It is the only low profile angled XLR connector on the market that's capable of being used across a whole range of audio applications (stage, studio, install, field recording, broadcast, system integration etc.). Cables can exit radially at 8 different angles (every 45°).
DIAMETER
22 MM
0.86 IN
LENGTH
41 MM
1.60 IN
PROTRUDES BY WHEN CONNECTED
27 MM
1.06 IN
SECURES CABLES BETWEEN
2.5 — 6.5 MM
0.09 — 0.25 IN
SPXA-F
SPXA-F is the female variant of the SPXA-M
DIAMETER
22 MM
0.86 IN
LENGTH
43 MM
1.69 IN
PROTRUDES BY WHEN CONNECTED
29 MM
1.14 IN
SECURES CABLES BETWEEN
2.5 — 6.5 MM
0.09 — 0.25 IN
Main Features Of The SPX Series
Up to 30% shorter than the generic XLR design → Straight XLRs.
Prominent knurled shoulders for superior structural integrity and maximum grip → Straight + Angled XLRs.
Secure cable clamping provided by a chuck-type strain relief that allows higher pull-out force → Straight XLRs.
Proprietary cable clamping system that provides effective strain relief for cables ranging between 2.5mm OD and 6.3mm OD → Angled XLRs.
Easy assembly process using just 4 parts and no screws. Side screws for color code only → Straight XLRs.
Easy assembly process using just 5 parts → Angled XLRs.
Serviceable, Heavy Duty all-metal construction with no external plastic parts → Straight + Angled XLRs.
Available only in all-black finish → Straight + Angled XLRs.
