Bose S1 Pro+ All-in-One PA Speaker
Today
Typical price$699
Amazon: the cheapest today among the stores checked
Buy on AmazonBose S1 Pro+ All-in-One PA Speaker or Sony ULT Tower 9AC Bluetooth Karaoke Party Speaker?
ULT Tower 9AC Bluetooth Karaoke Party Speaker costs $51 less today, across the stores checked.
Bose S1 Pro+ All-in-One PA Speaker is the cheaperSony ULT Tower 9AC Bluetooth Karaoke Party Speaker is $51 the cheaper
The comparison in detail
Sony ULT Tower 9AC Bluetooth Karaoke Party Speaker
Today
Typical price$648
Amazon: the cheapest today among the stores checked
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
First data point for one of the two: the chart appears as the days go by.
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 07/11/2026
S1 Pro+ All-in-One PA Speaker
- Amazon Lowest price$699Buy on Amazon
ULT Tower 9AC Bluetooth Karaoke Party Speaker
- Amazon Lowest price$648Buy on Amazon
Spec sheet side by side
| Item | S1 Pro+ All-in-One PA Speaker | ULT Tower 9AC Bluetooth Karaoke Party Speaker |
|---|---|---|
| Specs | ||
| Type | Home | Home |
| General | ||
| Model changes | S1 Pro+ All-in-One PA Speaker | ULT Tower 9AC Bluetooth Karaoke Party Speaker |
Other comparisons
S1 Pro+ All-in-One PA Speaker orBang Olufsen Beolit 20 Portable Bluetooth Speaker$749Compare
S1 Pro+ All-in-One PA Speaker orJBL PartyBox 330 (Black) 280W Portable Wireless Speaker Karaoke Bundle$750Compare
ULT Tower 9AC Bluetooth Karaoke Party Speaker orJBL PartyBox 330$630Compare
S1 Pro+ All-in-One PA Speaker orSony ULT Tower 7 Wireless Party Speaker$648Compare- ULT Tower 9AC Bluetooth Karaoke Party Speaker orSony ULT Tower 7 Wireless Party Speaker$648Compare
How we choose
Source: Catalog of partner stores, checked on 07/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, before sales tax. The model is the brand plus the name of the Bluetooth speaker; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure how it sounds or real battery life or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.