Phase 4 Stereo

I had phase 4 install a full audio system in my focus St. They gave me a pretty damn good deal and it sounds great. All of the employees are kind and knowledgeable. They don't try to upsell you or...

Came in planning some upgrades for me and my friends trucks, Big Mike was the best employee ever. Very knowledgeable and knew every question we asked. He even tuned my truck for me. He is the best...

Great service, these guys installed my stereo same-day last minute (which was a huge favor, since I was leaving town in the morning). Love the new sound too, thanks guys!

I started daydreaming at Phase 4 Stereo over 20 years ago and they were already legendary in Idaho Falls at that point. This place is still hands down the best in town. All these years later, they...

I grew up going to phase 4 as a kid. In July I purchased a home stereo receiver and speakers for a turn table I bought. Rod Wallace was amazing. The prices were very reasonable, competitive, and...