Orbit
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Posts posted by Orbit
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3 hours ago, henry4841 said:
Not to be discouraging but I do not think the electronics would be worth the effort. Especially with the cost technicians charge these days and the improvements of SS components since those were built. Money better spent on a decent tube amplifier is what I would consider.
I have a buddy in sub station design that will take a go at it. But while the topic is up I do have $1300 set aside for tube gear right now. That will go on the La Scalas. Any recommendations?
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2 hours ago, henry4841 said:
Depending on how old it is you may have germanium transistor rather than silicon. Original Germanium transistors are getting rather hard to find. It could be switched over to silicon but it would have to be properly biased. If you happen to have a signal generator you could check to see if you have the same amount of signal coming from the switch. A switch is not that hard to replace.
There are certainly some geranium. In the left side of the unit there is what I believe to be a headphone amp with RCA geraniums. The amp has the same on top of the unit.
I have wired foot switches on guitar pedals and built pedal kits but those always had schematics.
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Still some gremlins to work out but I have pots cleaned and a decent grasp of the crossover.
The horns sure are the shining star here. Reproduction of voice is excellent.
Amp is working well. It has 4 channels and 4 RCA input. One high and low on each channel.
The crossover has one set of inputs and a high and low out for each channel.
I think one of my current issues is with the A B stereo switch. One side of the pre is louder than the other.
I think I will have to send it to a tech...
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6 minutes ago, billybob said:
Guess the question will be how they sound. In the fullness of time, that is.
Just before bed I brought them up slowly on my Variac. I only got a few minutes in. it all lives! I have some cleaning to do on the pots and connections. I will report back.
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2 hours ago, avguytx said:
Good thing you didn't listen to those who said they'd pass on them.
I always appreciate and seriously consider advice of all sorts. At the end of the day you have to go with your own gut.
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1 hour ago, henry4841 said:
https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=JBL+LE85&_sacat=0
Just some asking prices on Ebay for the drivers alone. The horns and woofers are bringing big money on Ebay as well. I just knew from the build quality of those speakers there was gold inside as well. The electronics are a dream for a diy to restore but not an easy task without schematics. Not worth a lot but they were just gravy and free. I bet the speakers sound great. Top quality components in their day. There is a lot of love in those speakers from the builder as well. Lucky guy.
I am surprised to see the prices. I don't think I have the heart to take these apart. I will have to take care of it for him.
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1 hour ago, billybob said:
Glad you made out alright.
Brand and model of the pre and amp will be cool.
Congrats!
The pre, amp and power supply are made on a bread board with 60s parts. As I understand the maker or the speakers made all of these components. No labels or volume control on the amp or supply. The labeling on the pre is a worn waterslide and still has the pencil marks for the hole alignment. All the labels on the back pencil led too. The bottoms are plexi on the amp and supply.
Gut shot of the pre.
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The 4 Jensen's are Flexair 15" 3015D03-H1
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Here are the horns. Driver Reads JBL LE85. 16ohm. It's dark blue and has a red wax like substance crusted on the screws. Horns make a downward bend.
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I took a gamble and there is a mess of components and such in my jam room. I believe I have a preamp, Power amp with power supply , crossover and a ???. Also have two additional Jensen 15s and boxes of transformers and other parts.
I was told it was running not long ago. The man who built all this worked at the University of Michigan and was some sort of computer engineer. He passed on at 88 years recently.
The power amp has 4 sets of banana connecters one for each HF and LF. They are not marked. There are 4 RCA jacks that are also not marked. Luckily the black box that I believe is a crossover still has the HF and LF RCAs connected and they are different lengths.
I hope I can get this man's system running.
I was only expecting a set of speakers.
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3 hours ago, Dave1291 said:
Wow, I'm stumped. I want to say homemade but I'm not thinking so. I think I recall someone making a speaker similar to that only because of the wider oak top. I can't remember who though. My other thought is why are you spending $200 on a speaker you know nothing about? Sit on that gold card HARD and wait on a nice pair of Heresy's to pop up. Then jump and you'll be a happy boy! After all, you're in the Klipsch Joint yanno! lol
Randy could be onto something now that I think about it.
A good bit of it is curiosity. I do also enjoy they way they look. Would fit in well with my 57' modern home.
My experience with speakers is limited to the La Scalas I picked up two months ago, a sellers home made 2-3/4 walled home made speakers and disposable junk such as 80s-90s boom boxes.
These would no be for my main listening area.
Maybe my inexperience is showing here. They could be complete junk and a far cry from the quality I get from the La Scala right?
Many thanks to everyone that has taken the time to search and weigh in. Pretty cheap for end tables though right?
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These are for sale at $200 close to home. Cabinets look nice. From sellers other items they come from someone's 1960s home and look to be around 32" tall with a 12" speaker. Any idea on their origin?
Thank you
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Hello,
Looking for opinions on the correct Catsover frequency for this driver. It's a 2016 American Shorthair with no serial numbers. I am getting intermittent hissing while listening to Aja.
Happy Monday
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1 hour ago, Westcoastdrums said:
As a DAC to amp user with nothing in between, I can confirm, sound is BETTER to my ears than with a Preamp in between. Less gain staging, noise and coloration. Likely wont work for many that aren't all digital as I am however.
I see you are using a RME. Do you use RCA or XLR to your power amp? I am interested in going DAC to poweramps in my digital listening and I am also looking for a quality DAC.
Thanks
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3 hours ago, billybob said:
Reminds me of meeting members here at their home and a couple of buys and sells.
You never know.
Thinking good deal. Hope so...
It sounds great right now. At worst this has been an inexpensive way to experience the monoblock feel.
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11 hours ago, captainbeefheart said:
I have a Forte model II Class A preamp that I got in a trade, I was surprised at how good it sounded especially the phono section. I am currently happy with my all tube system and will most likely get rid of the Forte model II. If you decide on getting a preamp let me know and I'll sell it cheap, it would be a good match with the Parasound amps.
https://forum.audiogon.com/discussions/review-forte-model-2-preamplifier
I will take you up on this. I do need a good phono.
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9 hours ago, billybob said:
Cool...
It was a great experience on top of the acquisition. Very nice retired engineer that spent his time restoring large 1930s Zenith radios. He had a top notch HAM station in the room.
His listening station was something to aspire to. Home made speakers with McIntosh pre/cd player and power. His turntable was a dark ebony English make with a very distinct shape.
Quadratic diffusers and Helmholtz resonators lines the room with absorption panels. All of the treatment was made in his shop.
I should have taken a few photos.
I appreciate your encouragement.
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Put one of the amps on another circuit and the 120hz hum is gone. Amps are dead quiet in the La Scala. Imaging is a large improvement over the Sansui.
Right now there is only one gain knob in the system for the La Scala. The Echo Link is going straight into the Parasounds.
I would not describe the sound as warm. Most noticeable are the vocal inflections on Steely Dan tracks. They are more pronounced.
I am left wondering what a preamp could do to enhance the sound.
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On 2/17/2022 at 8:35 PM, billybob said:
Meanwhile, do you have preouts on the Sansui?
Don't know if good match but a Parasound preamp in garage sale here. Guess you will be getting the amps soon so may be premature.
The Sansui is sans a preamp out. I can go out of my DAC/streamer into the amps and sub. This is causing a 120hz hum in both the la scala and the sub.
Aside from the hum the signal is noticeably more dynamic and clear with these amps.
Any tips to get rid of the 120hz hum? I isolated the issue to the Streamer/DAC.
All 3 amps have the hum as soon as the Streamer/DAC gets power.
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3 hours ago, captainbeefheart said:
Another point of view is that people forget that these amps originally were not expensive brand new, they are budget amps. There are lots of bad reviews on the internet about them being cheaply made so then again the seller might be having a hard time selling them and just listed them with a has to go price and there is nothing wrong with them.
The people that gave the poor reviews on the product fail to remember the fact that these amps were very inexpensive compared to other products produced by them so of course there is going to be some degree of cost cutting in the design. As long as they function properly and you don't abuse them you will have done good getting the two for only $150.
They will be running the La Scala for now so i won't be putting much strain on them. I can't comfortably put Sansui g-3500 past 3. Now I just need to find a preamp. Hopefully with balanced outs.
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1 hour ago, jjptkd said:
These are some of the lowest rated amps I've seen on Audioreview build quality seems bad specs when compared to the HCA-1000a aren't that impressive to say the least also no mention of John Curl-- his name is typically plastered all over his work:
http://www.audioreview.com/product/amplification/amplifiers/parasound/hca-1201a.html
I appreciate this. Looks like most of these are related to dead units and poor soldering. I will be sure to open one up. Thank you
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36 minutes ago, billybob said:
Time likely of the essence.
Well thanks to some quick acting I am going to get them and a Marchand XM9 crossover for another $75. Thanks Billybob
K-53-k $130 set shipped FB market
in Alerts!
Posted
https://www.facebook.com/marketplace/item/283067097352164/