(608) 723-2127

7596 U.S Highway 61 South
Lancaster, WI 53813-9608

Using our Speaker Cone Catalog

-  How to Use Our Catalog

-  Material and Treatment Reference

  1. Cone Body Coatings and Treatments
  2. Cone Body Materials
  3. Surround Materials

How to Use Our Catalog

Step 1

"Round Tooling" or "Elliptical Tooling" selection
The assemblies are grouped in order, first by General Size, followed by: Body Material, Surround Material, VCID, and Trim OD, respectively. Assemblies can be chosen per desired dimensions, and general body and surround materials. Refer to Assembly Nomenclature drawing as a guide for interpretation if necessary. *

An assembly in this manual is distinguished by the Body ID and the Edge ID under the Assembly Number column. This will serve as a part number for ordering a particular sample or assembly. Please include Body ID and Edge ID where required on the "Sample Request Form".

All assemblies listed in this manual include a .032" (.8128 mm.) neck as a representation of our minimum manufacturing capability. An additional neck, of up to .062" (1.5748 mm.), may be added to any given assembly printed in the manual. The addition can be in order to increase the overall height, and to more closely meet any request. Please indicate any desired additional neck height on the "Standard Sample Request Form" if required.

If an assembly is not listed in this manual that meets your requirements, or a quotation is required, please complete the "Non-Standard Sample or Quotation Request Form". Special prototyping may be available for an initial design certification.

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Step 2

Cone Body Materials Selection
Proceed to the "Cone Body Materials" section of the manual and choose a material best suited to the application. Please indicate, on the "Sample Request Form", a desired body weight if the selection is a paper material, or a specific thickness if the selection is a plastic material, as well as the Material ID.
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Step 3

Speaker Cone Body Coatings and Treatments Selection
Turn to the "Cone Body Coatings and Treatments" section of the manual, next. The general characteristics of paper materials used in our speaker cones can be modified with certain treatments. These chemical additives, when applied by absorption or saturation, modify the general characteristics of a paper cone body. Specify the general characteristic(s) required and to what degree where applicable on the " Sample Request Form".

Paper body coatings for speaker cones available are Wet Look and Film Laminate. Some general guidelines on selection of paper body coatings are also covered in the "Cone Body Coatings and Treatments" section. Please indicate if a body coating is desired on the "Standard Sample Request Form".

In addition to subjecting a paper cone to the overall treating process, an additional neck dip is added by default on most products when determined necessary by Loudspeaker Component. The region which is saturated with the neck dip typically covers only the VCID/neck area. However, if extra reinforcing is required beyond the VCID/neck area, extending into the cone body (apex) region, it should be specified in terms of depth on the " Sample Request Form".

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Step 4

Paper Cone Press Process
The Press Process is an option that reduces the cross-section of the paper cone. This process increases the density and produces a smoother texture on the front and rear surfaces, which may affect the acoustical response of the product. Press is only available for paper cones. It is a highly accurate means of controlling speaker cone thickness and is compared to the common non-transfer method of making speaker cones. Repress is an extra process and should be utilized only when determined necessary for acoustical or appearance characteristics. Since repress tooling is not available on all bodies, please indicate preference per the options on the " Sample Request Form".
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Step 5

Surround Materials Selection
Turn to the "Surround Materials" section of the manual and select a surround material that is best suited to the application of the speaker. Please indicate the Material ID of the selected material on the "Standard Sample Request Form".

* Dimensions and specifications are based on tooling dimensions and do not necessarily reflect exact dimensions of finished parts, and are subject to change without prior notice.

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Material and Treatment Reference

1) Speaker Cone Body Coatings and Treatments
Speaker Cone Body Surface Coatings:
  • Wet Look—Produces glossy appearance. Black is standard. Other colors are available upon special request. This is the most common method of cone coating and is typically available on any paper cone.
  • Film Laminate—Produces glossy appearance with minimal weight gain. It also provides a positive barrier which inhibits moisture permeability through porous speaker cones or the entire assembly. Clear film is standard. Other colors are available upon special request. This method of coating may require minimal tooling to produce samples. A film laminate should be considered when the standard wet look process does not provide a suitable appearance or when a high degree of moisture resistance is required.

Paper Speaker Cone Body Chemical Treatments:

  • Stiffening
  • Damping
  • Waterproofing
  • Fire Retardant

Notes: When necessary, these chemicals are combined to produce necessary product-specific acoustical and/or environmental characteristics.

2) Speaker Cone Body Materials
Paper Speaker Cone Body Material

Material ID

Density

Acoustical Application

Material Composition

Comments

P-110

3

W, M

Kraft

Popular, standard pulp.

P-210

3

W, M

Kraft

Same as P-110, but higher resistance
to fracture and delamination.

P-115

4

W, M

Kraft

Common mid-density pulp.

P-215

4

W, M

Kraft

Same as P-115, but higher resistance
to fracture and delamination.

K-169

4

W, M, PA

Kraft, Kevlar®, Polyester

Stiff pulp at a light weight.

KP-269

4

W, M, PA

Kraft, Kevlar®, Polyester

Same as K-169, but higher resistance
to fracture and delamination.

K-541

3

W, M

Kraft, Kevlar®, Polyester

Excellent for outdoors. U.V. resistant
brown color.

P-70F

4

MI, PA, M

Kraft, Hemp

Most popular higher density pulp.

P-180

5

MI

Kraft, Hemp

Highest density pulp. Guitar.

F-571

2

W, M, F

Kraft, Fiberglass, Hemp

Fiberglass reinforced.

HD-575

5

W, M, F

Kraft, Hemp, Kapok

Extended, flat high frequency.
Popular for use in auto and home theater.

P-158

1

W

Kraft, Cotton

Excellent damping.

X5

3

W, M

Undisclosed

Extreme high power at light weight.

051209

2

M

Hemp, Kraft

Guitar

CGS200W

4

MI

Kraft

Popular guitar material
Plastic Cone Body Material
Material ID Density Acoustical Application Material Composition Comments

Poly-050 (Black)

--

W, M

Talc-filled polypropylene copolymer

Standard thickness:
.015, .020, .030, .040 inch or
.380, .500, .760, 1.00 mm.
Injection Molded   W, M mica filled Thickness per tooling

Notes: Density is classified in the raw state of the material, before the addition of chemical treatments, repress, or surface coatings. Density and bending stiffness is modified by chemical treatments and/or paper cone press operation if applied.

The acoustical applications and comments are our recommendations based on the historical performance of these speaker cone materials in given applications. These recommendations are based on the material as a finished product with various chemical treatments, and with or without repress or surface coat operations. These are general guidelines and not intended to restrict material from applications other than our recommendations.

* Density:

  • 1 = Low
  • 2 = Med. Low
  • 3 = Medium
  • 4 = Med. High
  • 5 = High

* Acoustical Application: (W) Woofer; (M) Mid-Range; (F) Full-Range; (PA) Public Address; (MI) Musical Instrument

3) Surround Materials
  • Cloth
  • Foam
  • Rubber
  • Santoprene®
  • Over Molded Elastomer

     

    Cloth

    Material ID

    Nominal Weight

    Comments
      oz/yd2 g/m2 Threads per inch, weight
    and application

    Cloth-006

    1.9

    64.5

    (88x80, Black Cotton) - Low resonance and weight; small diameters.

    Cloth-002

    2.8

    95

    (78x78, Black Cotton) - Common cloth for medium diameters.

    Cloth-030

    3.34

    113

    (48x44, Black Cotton) - medium power/stiffness, large diameters.

    Cloth-005

    3.34

    113

    (48x44, Red Cotton) - Same as Cloth-030, except for red color.

    Cloth-015

    4.65

    157

    (60x60, 50% polyester/50% cotton blend) - Higher power/stiffness than cloth-030

    Cloth-021

    4.8

     

    (70x46, 65% polyester/35% cotton) - Higher power/stiffness than cloth-015.

    Cloth-016

    6.6

    223

    (30x30, 50% polyester/50% cotton) - Higher power/stiffness than cloth-021.

    Notes: All cloth is saturated with phenolic to achieve desired resonant frequency.

    A secondary sealer application is optional, except for red colored cloth.

    Foam

    Material ID

    Nominal Weight

    lb/ft3 kg/m3

    Comments

    Foam-001

    1.87

    29.95

    (Charcoal) - Polyether

    Foam-006

    1.90

    30.44

    (Red)

    Foam-050

    4.00

    64.07

    (Black) - Specially formulated to produce substantially lower resonance with approximately double the weight of other foam. It should only be used if resonance and weight cannot be achieved with other foams.

    Foam-002

    1.80

    28.83

    (Blue)

    Foam-007

    1.87

    29.95

    (Black)

    Note: Foam is slit to thickness to achieve required resonant frequency.

    Rubber

    Material ID

    Comments

    Rubber

    Contact LCC for details

    Santoprene®

    Material ID

    Comments

    Santoprene®

    Available in various durometers, thicknesses and colors.

    Note: Santoprene® is a registered trademark licensed to Advanced Elastomer Systems, L.P., by Monsanto Company.

    Over Molded Elastomer

    Material ID

    Comments

    Over Molded Elastomer

    Contact LC for details