Goldwood GW-1858 18" Pro Woofer

Brand:| Model: GW-1858
Designed for sound reinforcement systems, lead guitar and rhythm guitars, practice amplifiers for bass guitar, stage monitors, and vocal PA systems. They feature accordion paper surround, poly laminated paper cone, and a vented pole piece.
Part # 
Weight: 11.4 lbs.  
Due In: 8/26/2014
Your Price
Buy 4-up$94.00
Part # 290-386
Qty:  EA
Available Payment Methods

Product Details

Goldwood GW-1858 18" Pro Woofer

Designed for sound reinforcement systems, lead guitar and rhythm guitars, practice amplifiers for bass guitar, stage monitors, and vocal PA systems. They feature accordion paper surround, poly laminated paper cone, and a vented pole piece.

Product Specifications
  • Nominal Diameter18"
  • Power Handling (RMS)220 Watts
  • Power Handling (max)340 Watts
  • Impedance8 ohms
  • Frequency Response20 to 6,000 Hz
  • Sensitivity94.3 dB 2.83V/1m
  • Voice Coil Diameter2.5"
  • Magnet Weight50 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)30.28 Hz
  • DC Resistance (Re)5.3 ohms
  • Voice Coil Inductance (Le)0.6 mH
  • Mechanical Q (Qms)6.7
  • Electromagnetic Q (Qes)1.3
  • Total Q (Qts)1.1
  • Compliance Equivalent Volume (Vas)18.49 ft.³
  • Mechanical Compliance of Suspension (Cms)0.23 mm/N
  • BL Product (BL)9.8 Tm
  • Diaphragm Mass Inc. Airload (Mms)120.9g
  • Maximum Linear Excursion (Xmax)3.4 mm
  • Surface Area of Cone (Sd)1277.01 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialPaper
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter18"
  • Baffle Cutout Diameter16.5"
  • Depth7.875"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume14.65 ft.³
  • Sealed F334 Hz
  • Vented Volume125.6 ft.³
  • Vented F317 Hz
Goldwood GW-1858 18" Pro Woofer
  • BrandGoldwood
  • ModelGW-1858
  • Part Number290-386
  • UPC643420100112
  • Product CategoryWoofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (3 Reviews)
  • Weight11.4 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Goldwood GW-1858 18" Pro Woofer
Goldwood GW-1858 18" Pro Woofer is rated 4.0 out of 5 by 3.
Rated 5 out of 5 by from INCREDIBLE BASS DETAIL IN H-FRAME OPEN BAFFELI have these in h-frame open baffel, they are in a word awsome, the bass detail and power in this design have tobe experienced. I put this system together with very littlemoney as I was able to use drivers I had on hand and anolder 70 watt amp from way back sitting in my closet, all-ready had a 16 watt tube amp for the midrange , so all Ineeded was a little cheap amp for the tweeter. Was ableto purchase a pyramid crossover for $69 new , didn't evenbother with binding posts , ran the leads right to the drivers with quick connects. great for all music great fortechno and watching movies. Will experiment with full rangedriver and a little larger baffel as this reinforces the bassnot that it's lacking at all, it's a balance thing.
Date published: 2013-01-09
Rated 4 out of 5 by from This is THE woofer to use for OB bass!Experimentation with open baffle speakers eventually led me to Martin King's work on "H-Frame" OBs. His recommendations for a speaker with high Qts, relatively good efficiency and as low a Fs as possible left a few 15" models on the table and ONE 18", the GW-1858. For the H-Frame OB design there simply isn't any comparable alternatives in an 18" woofer.How do they sound? Fantastic! With the right crossover and upper range speaker (combined into a two-way OB) this is probably as close to a true 10-octave "full range" system as you can get in a simple OB format. I've owned lots of great speakers in the past including Martin Logan, Snell, etc. and I'd rather listen to my DIY OBs than any of them.Home theater too doesn't disappoint! We watched the movie "War Horse" at what I like to call "theater reference levels" and the cannon fire, explosions and other FX were scarily good, not just producing bass you could feel but a crisp range of lower bass without the one-note boominess usually associated with HT subwoofers. In fact my powered Infinity 12" sub had been disconnected for days (thanks cats!) and I never noticed.Would have given them five stars IF the frames had been a bit stronger and some sort of more "pro" level wire connectors had been used but hey, for under $100 each you can't have everything! Highly recommended!
Date published: 2012-11-08
Rated 3 out of 5 by from I'll admit it, I bought a pairI think everyone who bought these is afraid to admit they purchased a pair of the cheapest 18's available. But I'm not. I enjoy building and listening to and reviewing all kinds of speakers, even cheap ones! And these deserve their chance at a realistic review. Hey, if they're good enough for Martin King, they're worth a try. They are actually quite good in an IB with low power. A great way to get the bottom octave on the cheap for your home. I broke in the pair in open air. I maxed them out @ 50 watts RMS @25 HZ and never bottomed out. But they're end use was PA. A motown cover band I work with wanted to fill out their bottom end, but were strapped for cash. I put the pair in 6 cubic ft. sealed boxes. I added passive crossovers, 100 hz low pass on the sub, 60 hz hi pass to the tops, so they could run the stacks from one 600 watt/channel amp. They sound surprisingly good. The band loves the convienience of the single amp solution. They have enough bottom to bring the kick drum to life in smaller gigs. As of this review they have been using them for 8 months, with no complaints, and lots of compliments. Don't be afraid to try these for your low budget solution. You might be surprised.
Date published: 2010-07-23

Product Q&A

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who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Goldwood GW-1858 18" Pro Woofer

I'm currently running the GW-1858's in MJK's "H-Frame" open baffles with a fairly capable Yamaha M-65 vintage amp.  Friends always want to know about the "minimum" amp to use with these.  Would something like the DTA-120 be suitable for these drivers?

Asked by: Oktyabr
A minimum amount of power is impossible to recommend without knowing anything about the design criteria. Due to the woofer sensitivity, the DTA-120 should be plenty to drive this to excursion limits at lower frequencies.
Answered by: MattP
Date published: 2014-03-12

Infinite Baffle

Can this be used in a chambered box IB configuration? Face to face chambered box vented from one enclosed room into my listening area and would it be ok if the vent opening is behind me and the main speakers about 10 feet in front of me? I have a sub amp to power and xover them.
Asked by: meyerrat
the primary question being"is this driver suitable for infinite baffle alignment?",yes."face to face"?,do you mean push-pull?not with 3.4 mm Xmax!by utilizing these in push-pull you are applying both motor units to one radiating diaphragm necessitating healthy Xmax,which these don't posses."vented from one enclosed room into my listening area",if you vent the cabinet air mass it is no longer an infinite baffle,its ported.the wavelengths of typical ported tuning frequencies are much greater than the dimensions of a typical living room,location of radiating source is irrelevant if it is at a room boundary(behind you,in front of you,on top of you,below you,to the left of you,to the right of you,because the radial path length from one ear to the other ear is an insignificant fraction of the wavelengths of the frequencies we are referring to,which means no directional cues.
Answered by: unk1
Date published: 2013-04-27

Sounds like this speaker works well in OB, H-frame. Could I use a PVC pipe or sonotube in the same way with good results?

Asked by: Footer
There is nothing wrong with this option, as long as the front is separated from the rear it will work. The tube length and placment in the room will be the determining factor.
Answered by: MattP
Date published: 2013-04-17

what is the low end response of these drivers in a 6 cubic ft sealed enclosure.

Asked by: sammy malone
The modeled F3 in 6 cubic feet with heavy fill is 42 Hz with in room response somewhere in the low 30's.
Answered by: MattP
Date published: 2013-02-06

290-386 vs. 295-475

how would this goldwood woofer perform aginst the dayton? what type and size of box would be best in a home application and in a car application?
Asked by: jarod
This driver is optimized for sealed enclosures, the Dayton Pro 18 is more suited to a ported enclosure. The "best" enclosure for any driver is always subject to opinion, however, a reasonable sealed design for this particular driver could be anywhere from 5ft³ to 7ft³.
Answered by: RussR
Date published: 2012-01-07

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