Most OEM cable enquiries stall on the same missing field
An OEM cable project rarely fails because the factory cannot make the cable. It stalls because the specification that arrives at the factory is incomplete, and every missing field turns into another round of questions before anything can be confirmed.
The fix is unglamorous: send a complete specification sheet the first time. What follows is the field list to fill in, written from the point of view of what a cable factory has to resolve before it can confirm a construction.
The eight fields of a complete cable specification
A cable specification is complete when all eight of the following are answered. Anything left blank becomes a question.
1. Application and use environment
Where will the cable be used, and how will it be handled? A cable that is coiled, uncoiled and packed into road cases is specified differently from one that is fixed in a wall or pulled through a conduit. This is the field buyers skip most often, and it is the one that changes the answer most.
2. Construction family
How the conductors are arranged, and which family of construction you are asking for. LBS manufactures four speaker cable families — tour-grade reinforced, jacketed installation, double colour parallel and transparent hi-fi — alongside DMX512 stage lighting control cable, Cat5e, Cat6 and Cat6A network cable, and HDMI and AV cable. If you are not sure which family you need, describing the use case is enough; the factory can map it to a construction.
3. Core count and conductor cross-section
The number of conductors and the conductor area in mm². “2 × 2.5 mm²” is a specification; “good quality” is not. If your market works in a different unit, give the unit you use and let the factory confirm the equivalent. LBS OEM work is quoted on constructions from 2 to 48 cores and 0.5 to 6.0 mm² conductor gauge.
4. Conductor material
State what you are asking for, because a material difference is not something that should be discovered after the sample. LBS professional audio cable constructions are published with 4N oxygen-free copper conductors. If your requirement differs, say so explicitly.
5. Shielding
Shielded or unshielded — and if shielded, the structure. On LBS DMX512 stage lighting control cable, the standard construction is a single high-density oxygen-free copper spiral shield, with a double-shielded version (aluminium foil plus tinned-copper spiral, 120 ohm) available for long runs. Network cable is offered across Cat5e, Cat6 and Cat6A in unshielded, foil-shielded and double-shielded twisted pair. “Shielded” alone is not enough detail; name the construction. The UTP vs FTP vs SFTP shielding guide shows how the three screens differ in practice. The same “name the construction” rule separates DMX cable from microphone cable: both are shielded 2-core builds, but they are not interchangeable, and DMX cable vs microphone cable sets out the impedance and capacitance difference that decides which one belongs on a lighting run.
6. Jacket material, colour and finish
Material, colour, and whether the finish is matte or glossy. Published examples from the LBS range: a PVC jacket on tour-grade reinforced and professional speaker cable, an EPVC matte jacket on DMX512 stage lighting control cable, two-colour on double colour parallel speaker cable, and transparent on premium transparent hi-fi speaker cable. Jacket colours can be specified, including custom RAL references, and low-smoke zero-halogen insulation is available on request.
7. Printing
Whether the jacket needs printed text, and what that text is — brand name, model designation, specification string, or a combination. Jacket printing is applied during extrusion as permanent white-ink marking, so the text should be final before the run is scheduled.
8. Length and packaging format
The length per unit and how it is packed — bulk roll, wooden drum, branded box or custom labelling. This is a handling commitment rather than a label, so be specific about the format you want to receive.
Use a reference construction to shorten the brief
If building a sheet from scratch is slow, reference an existing construction as the starting point. Give the model designation, then state only what changes: jacket colour, printing text, length or packaging. This is usually faster than describing the whole construction, and it makes it obvious which fields the factory still has to confirm. A published base construction used for OEM main-PA builds is the tour-grade reinforced speaker cable in 2 × 6.0 mm².
Keep the reference honest. “Same as this model but cheaper” is not a specification change — it is an untargeted request, and the factory cannot act on it without knowing which property is allowed to move.
Two enquiries that slow a project down
- An enquiry with no specification. With no application, construction or quantity basis, there is nothing to confirm against.
- A brand name and nothing else. A logo does not define a cable. What defines it is construction, material, jacket, printing and packaging — the eight fields above.
The follow-up loop: what the factory confirms
Once a complete sheet is in, the practical sequence is short. The factory reads the eight fields, confirms whether the specification is feasible with the materials and constructions it runs, and comes back with anything still open. What normally remains open is the commercial layer rather than the technical one: MOQ, sampling and production timing are confirmed according to cable construction, materials, printing and order requirements, so they cannot be settled before the specification is fixed.
That is why the order of operations matters. Fixing the specification first does not slow a project down; it is what removes the repeated clarification rounds that slow it down instead. The same preparation logic applies to any construction in the range, whether that is speaker cable, audio signal and DMX512 cable or Cat5e, Cat6 and Cat6A network cable.
Reuse the sheet as your own specification record
The eight fields are the same for every cable you order, which makes the sheet reusable. Keep it as a template in your own product documents, fill it in before you approach a factory, and the same document later serves as the record of what was agreed. For buyers specifying more than one item — for example a speaker cable line ordered together with microphone cable, network cable or AV cable — the OEM and ODM manufacturing page and the balanced microphone cable shielding guide cover how multi-item OEM programmes are specified and managed.
OEM Cable Specification Sheet FAQ
Q: What is the single most important field on an OEM cable specification sheet?
A: The application and use environment. It determines the construction before any other field is chosen — a cable that is repeatedly coiled and uncoiled is specified differently from one installed permanently in a wall or conduit. Buyers skip it most often, and its absence causes the most rework later.
Q: Can I send a reference model instead of a full specification sheet?
A: Yes, and it often shortens the brief. Give the model designation and then state only what differs — jacket colour, printing text, length or packaging format. The factory will confirm which fields remain open. What does not work is a reference plus an unspecified request to make it cheaper, because the factory cannot know which property is allowed to change.
Q: Which fields should be final before production is scheduled?
A: Printing text and jacket colour should be final, because jacket printing is applied during extrusion as permanent marking. Construction, conductor material and cross-section should be frozen at the same point. Commercial terms such as MOQ, sampling and production timing are confirmed according to construction, materials, printing and order requirements, and follow the fixed specification rather than preceding it.
Send your specification sheet
If you already know the construction, send the sheet now: the model or drawing, conductor size and core count, shielding, jacket and colour, printing text, length and packaging. Use the specification enquiry form to send your requirements, or message the LBS cable team on WhatsApp at +86 133 5282 6333. The team confirms whether the specification is feasible with the constructions the factory runs before sampling.