So it was with pronounced skepticism that I accepted the mission of review two Fender amplifiers: the SFX Satellite and the Acoustasonic SFX II.These unites feature the company's patent-pending Stereo Field eXpansion (SFX) technology, which projects a 300-degree stereo image around the sound source. Like all Fender amplifiers, the Acoustasonic SFX is backed by Fender's 5-year transferable warranty. SFX® Keyboard 200 Designed to free keyboardists from rack mounted mixers, power amps, studio reference monitors and re-hashed guitar amps, Fender's SFX® Keyboard 200 lays claim as the definitive amp for modern keyboard playing. Awesome sounding Fender Acoustasonic PR-370 with SFX technology for an array of onboard effects and a side-positioned speaker for 360 degree sound projection. 450 watts. Two channels, one with an XLR mic input for vocals. Works great with just a couple snags in the grill cloth and a few barely noticeable scuffs on the sides. Hi I have a Fender Acoustasonic SFX that has a couple issues. It came to me with the complaint that the amp was "buzzy". A quick look and listen determined that the 8" upper speaker was blown. I verified this by swapping in a known good speaker. While doing the speaker swaps it became evident that the 10" bottom speaker has very low output. Fender Acoustasonic SFX Amplifier Amp PR 370 30" TALL 18" WIDE AND 13" DEEP UNIT DOES WORK, IN EXCELLANT CONDITION, PICK UP ONLY. FENDER ACOUSTASONIC SFX AMP AMPLIFER PR370. Estimate $200 - $300 Jan 10, 2016. See Sold Price. Sell a Similar Item. Save Item. Fender Acoustasonic SFX Manuals & User Guides. User Manuals, Guides and Specifications for your Fender Acoustasonic SFX Amplifier. Database contains 1 Fender Acoustasonic SFX Manuals (available for free online viewing or downloading in PDF): Operating instructions manual . The Fender Acoustasonic SFX II Acoustic Guitar Combo Amp is the top of the Acoustasonic line. It's powered by 2x80W of power driving an 8" speaker, 6"