Summary: The sps-400s sound pretty good for a 4" speaker. Obviously leaps and bounds above factory speakers. However, every website I have checked including Alipne's site, describe the SPS-400 as having swivel tweeters. This is simply not true. The tweeters are fixed. I called the Alpine tech support to clarify and they told me they use a blanket description for all of the SPS line even though several models don't have all the features!
Alpine SPS-400 2Way 4" Car Speakers are great speakers!
7 December 2010
Summary: Very good high-frequency sound quality. Would not recommend for use alone--use only for the treble and high frequency sounds that you want to hear to complement your mids and lows. Good quality construction and power handling capability.
Summary: Well have to see I looked these up in a marine guide for speakers we will have to see how they sound and work on my Goldwing so the Jury is still out..the jury will decide once they go through there first texas down pour..
Summary: Alpine is one of the best brands to go by when it comes to car audio. They have a high reputation and as a result, create quality products. I've had previous experience with Alpine before and rank them near the top of my list of car audio equipment specialists. Alpine's SPS-400 speakers do wonders when replacing a stock factory set up, if you already have a premium system installed (depending on the brand) the buyer may not notice as big a difference, however, most of...