• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

optimus

  1. Copa1934

    Realistic Driver DB

    I would like to create a reference database for Realistic (Radio Shack) speakers. The point is quite simple, Radio Shack made the habit of repurposing drivers (really not much different from the Big 3 Auto makers for decades). All I ask is that you provide the catalog number for the speaker and...
  2. J

    Optimus T-120 vs Cerwin Vega's

    Hey Folks, I have a pair of T-120's that i've been using for over 24 years. Woofers replaced, but the mids need re-foamed and the cross overs need an overhaul. What are your thoughts with scrapping the idea of fixing them up and switching to an equivalent version of Cerwin Vega's? I could...
  3. J

    Realistic Optimus 2 tweeter replacement/upgrade

    I recently picked up a set of four realistic Optimus 2s from the original owner. He included a QTA-790 quad receiver (with working remote!) that he bought as a package in ~1974. Speakers are in very good physical condition including the woofers which appear to have fabric surrounds. However, all...
  4. Krosya

    I'm Horny, Baby - Optimus Mach Three

    It's been a while since I was pretty active on this forum. Many reasons, really, but main one was - not much new was added to my audio collection. Yes, maybe some music, but not much in as far as new equipment goes. And there was a good reason for it - I was pretty happy with what I have and...
  5. wcampbell91

    Replacement Speakers for Realistic Optimus 5B's

    Hi everbody! I'm new here. I just got a really good looking pair of Optimus 5B's and have come to realize that one of the midrange speakers and the tweeter is out in both sides. I've been scrounging the internet for a while trying to find something that'll work as a replacement and not coming up...
  6. Adam S

    Realistic Optimus 9- has anybody actually heard these??

    Hello AK, so these popped up for sale about a 1/2 mile from me for what I consider a very fair price so I started researching them (you know the drill) but can't find much info out there, even on here. Here's what I've found; These were top- line in '75 with 12" rubber surround , cast frame...
  7. Jim Pearce

    Tri-laminate dome tweeter for Optimus 7

    From Polk RT 16. I'm going for it. Need to make a 1/8 in notch. Almost a direct drop in fit. Bought them for 60 bucks the other day. Sold for $189 in 1973.
  8. spidey2721

    so i finally have a stereo setup...

    first time in many years I have a dedicated stereo system again. Not the sexiest but it was very cheap and works for now. All of what I bought I got thru my moms' cousin (whatever that makes him to me). He has owned "the local record shop" in the area for like, I don't know, 30 years now? It's...
  9. J

    4 Brand new Realistic Optimus 990

    Just left the local thrift with a conundrum. 4 Brand New Realistic Optimus 990 speakers minus the woofers. Thrift store removed and threw out the woofers due to rot, aargh. Anyway they came in original boxes, also thrown away, they were stored in high heat storage area. Hence the rot of the...
  10. E

    Optimus STA-300 Crackle Sound

    I recently bought an Optimus STA-300 from goodwill. For a compact 15 watt receiver, I was surprised that it can generate such volumes than what it's rated for (in a good way of course). The problem is that when I first plugged it in, there seems to be some strange crackling sounds. This would...
  11. R

    Preamp quer...

    Would the Optimus sa-155 work as a preamp?
  12. Spotopolis

    Optimus LX-8 (need help)

    So I grabbed some LX-8's off CL for really cheap 2 years ago. They are missing the top (whatever was mounted to them. Im assuming tweeters?). So they are both just the one 8" sub. They were in perfect condition. I just noticed the other day that one of them has some new holes in one of the flat...
  13. dutchtowner

    Low-budget stereo system

    Hi, I'm new here. I'm hoping to find some advice on how to incrementally improve my system as affordably as possible. Here's what I'm working with now: Yamaha R-N303 receiver MCS 6702 turntable with an unidentified Audio Technica cartridge Pair of Paradigm Cinema 110 v3 Pair of KLH 9912 Pair of...
  14. Fraijoni

    Receiver for Cerwin Vega E-315 and Optinus Pro X77s

    So in my search of a starting receiver I found a Home Theater Receiver that looks promising but too promising... It's the Yamaha RX-V550, it looks and sounds like an awesome deal for $70 but I'm not too sure on Yamaha never used their products. So does anyone have some input of this particular...
  15. Fraijoni

    Just starting my venture into home audio...

    Figure I start my intro... So I very recently got into home audio and I've recently got a name brand whatever speaker pair Cerwin Vega E-315 I was originally using an oldish RadioShack Optimus setup, anywho I got my Vegas a couple days ago and have them running off of a Sony STR DH-550 and it...
  16. Schmidlapper

    a restored 1977 system in the "Music Room"

    Some AudioKarma favorites, the Onkyo TX4500, Realistic Optimus 5B w/ VideoLady Xover mod and the nine year newer Denon DP-37F. This is my secondary system in what I refer to as the Music Room. Hope you enjoy my man cave.
  17. Krosya

    All these speakers - my head is spinning!

    Hi all, About a year ago ( or slightly more) I got back into Vinyl and vintage audio in general. Since then it has been a rollercoaster of amps, receivers and most of all speakers. And this forum is where I get most of my information about the equipment. Pouring over the reviews and opinions...
  18. gunpoet

    Optimus 4

    Picked up a nice set of Optimus 4s for about $10 each today. Great shape and play pretty well. Anyone else ever have a set of these? I'd like to re-cap them and I. Not sure what to use or where to get what I would need. Thanks in advance! Chris
  19. B

    Acquired 2 pair of Optimus Pro 7 & 77's, best room placement?

    I recently came into possession of 4 sets of Optimus Pro speakers, 2 pair of 7's and 2 pair of 77's. One of the 77's needs refoamed, but other than that they're all in pretty perfect shape. How should I go about placing these in my living room to maximize their potential? I didn't plan on...
  20. B

    Incomplete Optimus T-120

    Hello, I have been holding on to a pair of my grandfathers T-120's that I am interested in rebuilding. One of the cabinets are missing the mid and woofer. The other needs new foam. With half of the drivers missing, repairing is not an option. I am looking for the best replacement options. I am...
  21. M

    Nova 15's vs Optimus system 710

    Which do you think would sound better? I can find that a few people online praise the nova 15's but i cant find much about the optimus 710, it has a serial number of 9209000742 and a model number with 13-1253. Im still learning about speakers but i noticed that the optimus has 3 speakers...
  22. camerakid

    Optimus 10 Band Graphic Equalizer Worth it for $40?

    I was scanning evilBay this morning and saw an Optimus 10 band equalizer for $40 + free shipping. I was just wondering if it would be worth it for 40 bucks. I need an equalizer for my system and this would be my first one (if I bought it, of course). I was also looking at some other ones like a...
  23. Q

    Optimus STS 100

    Missed my neighbors' garage sale earlier this week but eventually curb scored (free) a pair of 90s-era Optimus STS 100 speakers :) They look to be in good condition, cabinet scratches only. Foam is well intact, no cone or other visible issues, etc. Does anyone have any insight on these? I read...
Back
Top Bottom