Full range driver open baffle5/28/2023 ![]() Despite the small excursion, the woofer can play loud rock music with no issues. The woofer excursion is small, noted as X max = 2.0 mm. From the datasheet the Goldwood GW-1858 woofers have a noted usable frequency range of 20 Hz to 6 kHz. The 18" woofer is built around a black pressed steel basket. The weight of the ferrite magnet is noted as 1417 g (50 oz.) and the net weight of the Goldwood GW-1858 woofer driver is 5.18 kg (11.4 lbs). The datasheet notes the woofer power rating at 220W. ![]() The Goldwood GW-1858 woofer voice coil diameter is 63 mm (2.5") and uses a vented pole piece. The nominal impedance is 6 ohms and the DCR is noted as 5.3 ohms. The speakers feature an accordion paper surround. ![]() The Goldwood GW-1858 woofer driver utilizes a black poly laminated paper cone and a solid composition paper dust cap. Photograph 1: Goldwood GW-1858 - High Sensitivity 18-inch Open Baffle Woofer The Goldwood GW-1858 woofer is available for purchase from Parts Express. Once placed in a suitably open baffle the Goldwood GW-1858 woofer can produce excellent bass output down below 30 Hz. We have found the Goldwood GW-1858 to be a cost effective and solid performing open baffle woofer. The Goldwood woofer has a high Q ts and thus works very well with open baffle speaker designs. The Goldwood GW-1858 is an 18" (457 mm) diameter woofer with a nominal impedance of about 6 ohms. Goldwood GW-1858 - 18" Open Baffle Woofer
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