ADS 300 Review of these small bookshelf speakers of the 1970's. 

I always 👍 your videos before even watching. Never been disappointed. 😊

I've a pair of ADS L300Cs in white. All of the electrolytics were replaced with MKP caps, and sand cast resistors replaced with Metal Oxide. Addad a cubic foot powered sub using an OEM 7" ADS woofer. They're a fantastic match for the Olasonic Nano-UA1 integrated amp (2× 28w into 4Ω). BW spans from 40Hz to 19KHz. Sound quality of these vintage speakers betters most modern designs ~ 9 out of 10 w/ sub, 7 out of 10 w/o.

Another great video and another great piece of audio history. I could watch one of your videos every day!

I currently have ADS l570, l710, l780, l880, l1230 and l1590. Love em all.

The Minimus vs. the Braun/ADS results sound like a close shave. Pun intended. ADS is what Braun called and marketed their products here. They still called their shavers Braun here. I had the Minimus 7 in both silver and black. I also had the aluminum enclosed Minimus 11, which I nicknamed the Maximus. It was only a little more money and looked pretty much the same as the 7, except a little bigger. I think I preferred it by quite a bit. In retrospect you'll see a dozen or more Minimus 7s on the used market for every Minimus 11 you'll see. It might be that the wrong speaker became popular. I forgot whether you said the Braun or the Minimus was first. One was obviously a close copy of the other. Both had that small amount of aluminum cabinet protrusion around the front baffle. The sound would have sounded bigger if that was flush with the front baffle. The Minimus 7 had a bit of a soundstage, thanks mainly to very little cabinet diffraction surface area to diffract. But it proved that you could have a decent sized soundstage and still have miniaturized sounding instruments within that soundstage. The Optimus had no bass overhang because of the small mass of the driver and the inert aluminum cabinet. But the bass didn't go very low, as expected. The 11 went deeper. They came out at a time when much experimentation was going on with speaker cabinet materials, as people realized that the cabinet could greatly affect the sound quality. Celestion in the SL 600 & 700 models, used aerospace Aerolam material for the cabinets, with stunning sonic results. There was a speaker from Scandanavia which gained some popularity here called the Rauna Tyr. Rauna used concrete for the cabinets, and they were a good heavy little speaker. They probably would still outperform most small speakers even today.

Grazie sei un Grande ❤

I have a pair of all original Visonik David 502, which seems to use Braun drivers. But compared to the ADS and Minimus, they're extremely inefficient at around 78-80Db sensitivity. But they do have extremely solid aluminum cabinets, as well as beefy drivers with massive magnets, and because there's no cabinet protrusion, very little diffraction if any at all (maybe just the screws). Heco marketed these as designed with the most prolific performance in mind if efficiency and cost weren't major factors, and I have to say they absolutely nailed it. You just need a decently beefy amp and you should be good to go.

I picked up a pair of Minimus 7W at a local thrift shop. They have wood exterior and are slightly larger cabinet than the Minimus 7s. I am using them for an office setup and have not A-B them.

A few ADS speaker models are 6 ohm nominal, some are even 8 ohm.

Combinate con le elettroniche giuste possono dare belle soddisfazione

Very basic question - trying to reconnect some old Realistic Solo3b speakers to my receiver (got them used back in the 70s, believe it or not). Can’t remember which posts to use on the speakers- could you say what’s the difference between the “hi frequency increase” and “hi frequency normal”connections? TIA from a really ignorant audio user.

Have you ever compared the Minimus 7's against the Cambridge Soundworks Ensemble satellites only? They appear to be pretty close in size.

I have two pairs of Minimus sevens one metal one wood

Had a set of 320i in my ride very hungry speaker

I have the brackets!, and the screws, but they were meant for wall mounting and swivelling ... not cars? Shame yours looks so run down... my 3 pairs still look brand new. Albeit I painted 2 wood ones when black took over. Matches the metal mountable pair better 45 years later.

I think ADS l200 are more like minim 7 then ads 300

Found these for $25