52 OCTOBER/2009 | SOUNDANDVISIONMAG.cOMOCTOBER/09 TRt E S t RE p O RTSThere are few concepts in manufacturingmore hallowed than the “skunk works,” adesign group that operates outside themainstream of the corporation that employsthem. The name was coined to describe a Lock-heed facility in Palmdale, California that hasproduced some of the world’s most extraordinaryjet aircraft. Only 80 miles away, in the nondescriptsuburb of Pomona, another skunk works hasbeen flourishing for more than a decade. In thisbackwater of Pioneer’s worldwide operations,surrounded by shelves of raw drivers and carcass-es of past prototypes, Pioneer chief speaker de-signer Andrew Jones and his crew have designedeverything from $40-per-pair minispeakers to the$60,000-per-pair TAD Reference One towers.Jones’s team has recently focused on archi-tectural speakers — i.e., in-wall and in-ceilingmodels. Extra effort went into the models de-signed for Pioneer’s high-end Elite line, which areintended to compete with the world’s most sto-ried speaker brands.The Pioneer Elite architectural speakers arenotable for their concentric drivers, which use11/2-inch titanium tweeters mounted in thecenter of various woofers. Pioneer refers to itsconcentric designs by the acronym CST, for Co-herent Source Transducer.Pioneer elites-iw571l & s-iw871lRin-wall spEakER sysTEm Reviewed by BRENt BUttERwORth+S-IW571L($699 each)(2) 51⁄4-in woofers;61⁄2-in midrange/woofer;11⁄2-in tweeter; 2011⁄16 inwide; 13 lb+S-IW871LR($899 per pair)8-in woofer; 11⁄2-intweeter; 1315⁄16-in high;7 lbPrice$2,996 (as tested)PIONEERELECTRONICS.COMKey FeaturesThe S-1W571L’s concentric-driverarrangement means it can be installedeither horizontally or vertically withno effect on the sound.»uP ‘n down sound