18″ BASS-line

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)


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This product qualifies for a 10% discount on orders of 4-9, and a 15% discount on orders of 10+. The price will be updated in your shopping cart.

The BASS-line series is our idea of an entry level subwoofer. These minimalistic subwoofers are built with the same high-grade components that our larger Platform series subwoofers use, but have been stripped down to leave only the essential core components. The remaining parts of these subwoofers are of the same high-quality materials as the rest of our lineup. These subwoofers offer huge output and unexpectedly superb sound quality. For low power applications or limited budgets, these subwoofers will not be beaten.

BASS-line subwoofers are available rated for 600 -750 watts rms power handling and are hand built in the USA with high quality 3″ flatwound voice coils, stitched heavy gauge leadwires, push terminals or direct connect leads, and our heavy duty cone.

These subwoofers come standard with single 3 ohm voice coils, to offer the most compatibility without unnecessary additional components. The voice coil can be upgraded to a dual voice 1 or 2 ohm coil..

Power Handling Ratings:
Standard RMS Power Handling – 600 watts
W/ Optional Hi Performance Addition- 750 watts
Peak Power Handling – 1250 watts
SPL Burp Power – 1500 watts

Standard version features include:
  Single 6.7″ x 1″ Y35 ceramic slug
Black coated top and bottom plates
FEA optimized motor assembly
12 spoke aluminum cast frame – Black
Chrome push terminals (optional direct connect wiring)
  4 layer aluminum flatwound voice coil
Single 3 ohm impedance (optional Dual 1 or 2 ohm)
Single 8″ progressive roll poly-cotton spider
Sewn 3mm heavy duty leadwire
Kevlar impregnated pulp cone body
1.5″ wide roll rubberized foam surround

They are manufactured to the strictest standard, and guaranteed to last.
Hand built in the USA!


Our subwoofers are available in two different  performance configurations, Standard and High Performance. The High Performance option will modify the parts used to build the subwoofer to increase the overall power handling and output capability.

The following upgrades would be  applied to the subwoofer if the High Performance option is selected:
Power handling increase from 600 Watts to 750 Watts RMS
Flatwound aluminum Dual 1 or 2 ohm voice coil
Additional push terminal
Additional lead wire for dual voice coil


 T/S Parameters for BASS-line 18″:
Revc = 2.8 ohms
Fs = 26.89 Hz
Zmax = 46.09
Qes = 0.66
Qms = 11.58
Qts = 0.63
Le = 2.43 mH
Sd = 1230 cm^2
Vas = 10.30 ft^3 / 291.79 L
BL = 12.84
Mms = 259.30 g
Cms = 135.08
Sensitivity = 91.1 dB @1W/1m
Sensitivity = 96.1 dB @2.83Vrms/1m
Xmax = 44mm total
Usable excursion = 2.5″ total

Enclosure Recommendations:
Sealed – 3-4 ft^3
Ported – 5.5-10 ft^3

This product may also be used in Bandpass applications. Please contact us before purchasing this product for these installations to make sure that the standard parts will be compatible with your enclosure.

If you would like to customize this series of subwoofer with performance or cosmetic options that are not available in our online store, please submit a
Custom Subwoofer Request.


Physical Specifications for Bass-line 18″:
Rated Diameter 18″ / 460 mm
Overall Diameter 18.5″ / 470 mm
Bolt Hole Circle 17.375″” / 441mm
Cutout Diameter 16.75″ / 425mm
Mounting Depth 8.75″ / 222.5 mm
Magnet Diameter 6.7″ / 170 mm
Driver Displacement 0.17 ft.³ / 4.81 L
Shipping Weight 35.5 lb / 16.10 kg


Polypropylene Dome (Small)

Carbon Fiber Dome (Small)

Full Cone Cover (Small)

We offer connections to the subwoofer either via spring loaded terminals or direct connect wiring.

Push Terminals are chrome plated, and are marked with a red and black colors to designate the positive and negative terminals. They offer the simplest installation and provide a nice secure connection.

Standard Push Terminals are made to accept a single 8ga wire and use a tab soldered directly to the push pin, to which the leadwires from the voice coil are soldered.

LARGE Push Terminals are made to accept a single 4ga or dual 8ga wires and use a heavy duty, extra-thick tab bolted to the push pin, to which the leadwires from the voice coil are soldered. large-terminals

Direct Connect wiring offers the very best connection directly from your amplifiers output wiring to the voice coil of your subwoofer. Our direct connect wiring is securely attached to our interwoven braided lead wire via high temperature solder, then covered with heavy duty heat shrink. You can make your connection to the wiring via the twist and tape method, large wire nuts, crimp connectors, or solder.


XS-Flex is the best of the best! A 100% Pure Oxygen Free Tinned Copper wire, with 735 Strand Count and Soft Touch PVC Casing. XS Flex Cable is True AWG cable. The high strand count and soft touch cable jacket allows the wire to be super flexible and easy to use in any installation. XS-Flex is available in BLUE and CLEAR.

XP Flex Cable is also a True AWG cable. It is made up of 10% Oxygen Free Copper(OFC) 90% Copper Clad Aluminum(CCA), with  735 Strand Count and Soft Touch PVC Casing. XP-Flex is available in BLUE, RED and BLACK.

PSI Flex Cable is made to the same exact standards as XP Flex, but is available in PINK only.

2 reviews for 18″ BASS-line

  1. Rated 5 out of 5

    Keith Hatfield

    Got 4 of these bad boys waiting to be installed. Even on an entry level sub, the quality is astounding.


  2. Rated 5 out of 5

    Charles rickard

    great entry level subs with same quality as the big competition platform 5s. hand made in the USA.

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