Price Paid:  $213.00 from Ebay

Summary:
This model of speaker (SP 3700) has two sets of twin horn tweeters, a midrange, and a woofer. One tweeter pair shoots its sound out of the top of the cabinet. These speakers are amazing, and have the best sound for classical music and opera I have ever heard. They are smaller than Klipschorns, but have the same quality of sound. This model only marketed in Japan, an not made in large quantities. They sound better for opera, jazz, classical, and non death-metal music than my SP Z911 ste I was using previously. I have set up a pair of SF-1 speakers in the back of the room, and have tried several amp and receivers with this combo, all of which sound better than they did with any other speaker.

Strengths:
Absolutely amazing soundstage and treble reproduction.

Weaknesses:
I own the only set I have ever seen, I would love to have another pair

Similar Products Used:
Cerwin-Vega AT-15, Sansui SP Z711, Sansui SP Z911, Various technic floorstanding speakers, Sansui SP 1500X, Cerwin-Vega HED Model 1, Kenwood cabinet speakers.

Price Paid:  $0.00 from more like found at:

Summary:
I was taking out the trash one day and i found a pair of sansui sp-z7s just sitting next to the dumpster. there was no one around so i threw them in the back of my jeep and took off. both the mid ranges didnt work so i replaced them but everything else works like mint. no scratches on the boxes, no foam rot, the only thing bad with them was the mid ranges. i use them now at college, point them out the window and rock my whole quad with them all night. they are the best speakers i have ever owned and cant find anything better. i also found a pair of Ohm model E speakers a few weeks later at the same place, these speakers are in 100% working order and are in mint condition.

Price Paid:  $60.00 from AAFES

Summary:
SP ZPII- 6 spkr 5 way-AWESOME speaker for the money. I was torn between these and the DBX soundfield I's. The "HOT" BOSE 501 series couldn't come close to sound quality in their best dream. For the price these are speakers without peers. Peak power is 320w/ spkr and when driven with the Yamaha M-80 amp in conjuntion with a DBX 4 and Carver C-9, they couldn't sound better. After 17 years of Hard rockin abuse they look and sound just as good as the day they were purchased. Even after bouncing around the world with a military man for 10 of those years.

Price Paid:  $25.00

Summary:
well i just bought some used sp-z7s and they are like new i was wondering what they cost if i bought them new at a store

Summary:
I have had the sp-z7's for almost twenty years. I have had several stereos powering them throughout the years and never bought new speakers because I couldnt find any that sound better. With my current setup and DBX range expander the sound is exquisite. Too bad they dont manufacture them anymore or I'd buy another set.