SB Acoustics SB23MFCL45-4, 8" Polypropylene Cone Sub Woofer - 4 ohm

Manufacturer: SB Acoustics

2 Customer Review(s)

Product ID: SB23MFCL45-4

$164.80

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Overview

SB Acoustics SB23MFCL45-4 8" Polypropylene Cone Subwoofer -234mm- 4 ohm

SB Acoustics SB23MFCL45-4 8" Polypropylene Cone Subwoofer -234mm- 4 ohm

Spec Sheet PDF

Low Q, good for small to medium vented box (see below). 12mm xmax!

Long stroke design
Linear high stability suspension
Low damping rubber surround
Long copper voice coil
Non-conducting reinforced fibre glass coil former
Very stiff mineral filled Polypropylene cone
Vented cast aluminium chassis
Large vented motor system
Long life silver lead wires
Optimized for smaller enclosures

Box recommendations:

Sealed box of 0.4 to 0.5 cubic feet for F3 of 65Hz. You would need to use a bass boost or DSP to push the driver into lower frequencies. The F6 is 45Hz and F10 is 35Hz.

Vented box of 0.8 to 1.0 cubic feet with a 2" port by 8" long for F3 of 35 to 32Hz.

2 Customer Review(s)

Excellent for music!

Reviewed by shrub0 on 06/14/2022

I have tried matching up many subwoofers to a pair of 4" full range satellite speakers. The list includes 8" Dayton RSS HO and HF and a 10" Peerless XXLS. I prefer the sound of this SB over the rest. It really does the range of 50-100 hz right. Other subwoofers sound strained above 80hz and may do better under 40hz, but for music listening this SB is best.

Brilliant for desktop Setup

Reviewed by kernisme on 01/08/2021

Used this driver for a 2.1 desktop setup and I am very satisfied with the drivers performance. Blends naturally with desktop speakers and has a usable and clean response down into the mid 20s. For a larger room I suspect this would play well into the 30s but run out of gas any lower.

Build a 13" cube out of 3/4" birch ply lined with a single layer of 3" rockwool insulation. Paired this with a 10" Dayton Audio Reference Series passive radiator and a Dayton Audio 250w DSP plate amp. I ran 2 weights on the radiator which gave box of about a tuning of 26Hz. Model showed an F3 of 43Hz and an F6 of 27Hz. With DSP in the plate amp and a 80Hz HPF I was able to get an in room response of 26HZ - 90Hz +/- 3db.

Overall I am really impressed with this driver and it's ability to play very cleanly blend with my speakers with a small footprint.

One note, I did experience the rubber surround separating from the basket after about 10-15 hours of play time. I was able to repair using Goop adhesive and have not had any other issues since.