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About frankmarsi

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  1. @ Jim P. Show us a photo of what you're using in room used so we'll all have a better idea. And as I suggested early on, use a 'variac' or the 'light-bulb switch' method which is actually better. With that amp I would think an 8 or 10 AMP variac would be sufficient. Ultimately, if your experience is limited or non-existent, do as others have said, seek qualified help.
  2. I've said it numerous times. I didn't fully realize what the AR-3a 12" woofer could do in terms of phenomenal bass response until I first hooked up a new Phase Linear PL-400 amplifier in mid 1974. It offered 210 watts RMS @ 8 ohms per-side, double that at 4 ohms.It had opened up a whole new world of high-quality with a new crispness in the highs, intense depth, strong solid bass, separation of tonal qualities of each instrument, and an amazing sense of 'real' to my system. All of those who insist on using anything less are short-sighted. And gee, that was 46 years ago, ""C'mon man"". With-in a short time I was further made to understand what a hardy, strong and powerful performer the AR-3a midrange speaker was in handling all of those watts. Before that I also used the ST-120 to drive my 3as and it sounded basically lackluster. When I approached moderately 'loud-ish' volume levels 'acoustic-feedback' would show its ugly face. Not fun and I started saving for something else and in that period the 'muscle-amp-era' was just becoming popular. But that ST-120 amplifier made me suffer and chomp at the bit about wanting to own the recent developments of the 'super-power' amps as they were referred to. Now, I push 16 tweeters at one time and those mids are simply amazing as they are able to soak up and output gobs of power with-out flinching in the slightest. The sole biggest difference between the AR-2ax and the AR-5 is the AR-5 has the better midrange speaker. And Jim, at the risk of discouraging you, you can receive all kinds of replies here and elsewhere combined but, you won't be fully convinced or let down until you try things on your own but, no, I personally would not recommend pushing that amp as Jkent has indicated and for all of bad experiences I had with it.
  3. Hi Jim, I had a ST-120 also, in 1972. I built it in kit form. I think it cost me $89. or $129. I don't recall. Although I would imagine other's had good service from it and I truly had great faith in the Dynaco brand as did "AR" but, my experience was one of the bad ones. This doesn't mean it's not a good amp but, when I used it with my AR-3a's in 1972, when deep bass was in a recording, I had to tell myself I was hearing it although, I was probably diluting myself because it was always very faint and slight in volume. I still have another one I bought used so I still have some faith in it though. I haven't used it since early 1983 and I won't take a chance unless I used a variac first. Personally, pushing that amp with 4 speakers might be a high risk. I believe others who may have had a better time at using it than I did might assist you and have a more positive reply. Here's another ST-120 link: https://community.classicspeakerpages.net/topic/12086-dyna-stereo-one-twenty/
  4. 8-31-2020 Far be it from me to be a proponent of the use of receivers, much less of ever having owned one in my long time history in the world of high-fidelity since 1967. At 17 years old, I learned at an early stage of my hi-fi travels that the best way to go was with separate individual components. Having a separate pre-amp and amplifier offers more service dependability and reliability but, also offer the ability to change either or both amp and pre-amp in-order to upgrade whenever one chooses to. It’s like either buying your own home where you can change anything you want at anytime or by using a receiver it’s akin to renting a furnished monthly apartment that you simply occupy and have minimal options of change. In my early investigations in the world of high-fidelity, I chose early on that the separate components offered the most flexibility. The casual listener or person who choses not to delve the furthest they could venture to, opts to purchase a receiver, admittedly, I was not that sort of person. I wanted to grow with the hobby in my quest to get the best sound I possibility could according to what level my finances and knowledge afforded me so, I took the path of separate components. If the ‘OP’ is simply experimenting or thinking of options in the future, it is best to be cautious with how you hook-up the components and be watchful of temperatures and performance of the receiver being used because when stressing especially an amplifier, the ‘end’ of the experimentation can rear its ugly head in a split-second or quicker than an unexpected rogue fart. See my short post here: https://community.classicspeakerpages.net/topic/11312-ar-58s-rebuild/page/3/?tab=comments#comment-131209 This link may be of use: http://forums.audioreview.com/vintage-gear/what-vintage-receivers-handle-4-ohm-speakers-35724.html
  5. The most important in addition to proper room placement and high-quality input sources is to use two separate power amps that are matched. Two amplifiers that are equal in power and ideally the same manufacturer. See example below. https://community.classicspeakerpages.net/topic/10649-do-ar-speakers-really-sound-that-good-more-new-video/
  6. Using AR-LST's on a budget? Is it possible? I say no. I myself, do not endorse 'chip-amps' that are made for powering 'bass-bins' and house PA systems. I'm not familiar with that pre-amp as it was made during AR's 'sell-out' defunct era. However, I'm sure the many scholars out there will give you their suggestions even if they typically have systems that might be less than truly listenable. Simply put, what sort of system did you ultimately what to have? How close to 'real' do you want your music to sound? You'll need a good plan for sure. Many slap AR speakers together with any old amplifier/receiver and are content with something that's not the best they could do. Some think and even insist their speakers sound good on the floor, others insist on using long expired phono cartridges that resemble a dull shaving razor, poor quality interconnects and cheap speaker wire that one wood tie up fire wood together with, or a low-end CD player that isn't any better than a 1980 walkman, are the way to go? NOT! Some are emboldened by the mere fact that they have AR's, and pay no mind to rest of the system and do not pursue the best levels their system could be. AR-LST's are super-power hungry so that 'chip-amp' will hold you until you upgrade to a more suitable pre-amplifier/amp combination while keeping in mind that you'll ultimately need more quality. Also, LST's require specific room-placement or can be slighted if not addressed. What will your sources be. How is the room situated, what are its dimensions? Your best option is to do your own research and for the most part it's not advisable to find credence in the words of certain folks who are not familiar with AR-LST's or have minimal experience with a system's proper set-up or room placement. My suggestion is to spend time on the web and search the forums which describe better and higher-end systems while absorbing what you can from there. Understand the web opened the flood-gates to everybody and their cousins who are mostly 'johnny come lately' types and only parrot what they've read elsewhere in the last couple of years while speaking as if they're experts. These less than intelligent individuals lurk around here and on other sites, primarily A.K. AR-LST's were AR's 'capital-ship', their crowning glory of the whole AR line at that time, these speakers deserve the best one can possibly do to allow them to sound their ultimate best. System planning is pivotal and of course, the best plans will render the best results. Ultimately you have to ask yourself the question: Am I worthy of AR-LST's and do I deserve them? Will I set them up as they were meant to be? FM
  7. Thanks for that compliment "briodo" and coming from a member that's been here since 2006, that says many things to me. Regarding my comment on how some others that have chosen the route of besmirching my posts instead of praising my systems they must be fuming. The irony here is it's always individuals with lesser set-ups, and some with ,lesser experience in setting up a 'real' quality system. On another note, regarding driving those two similar though different speakers, I have to agree can be fun to a degree. A number of years ago, I connected four AR-3a's to two Phase Linear PL-400 amplifiers so, all components were identical. I found the pairing to be somewhat bass heavy and 'thick' sounding, so I chose not to go forward with it. A note-worthy member on this forum also admitted to this tendency occurring but, perhaps with these two models you speak of you might have better results. Just keep in mind when speakers are 4 ohms, it could stress even the most hardy of amplifiers and fusing is recommended. It would prove to be a learning experience in any event, just don't play too loudly no matter how good it might sound. I believe that amp you refer to has a inboard cooling fan. Ultimately, it would always be better to use two identical amps. So, good luck with all that and I'm sure all here would like to hear of your results.
  8. briodo, “Next on the bucket list is make like Frank Marsi and stack them. That should be fun”. That’s a nice idea and fun to do but, to do so correctly for maximum sound quality you’d need two separate matching amplifiers and all speakers should be identical also. When I was a very young teenager and playing in a band, we would stack our guitar amplifiers together with none of them matching and it would always sound like crap. I even attempted to do so with the few speaker cabinets I built in the mid 1960’s and again, the easiest drive-able speaker was the loudest and it sucked with the bigger speaker hardly doing anything and the smaller speaker being over driven. I see guys all over A.K. and here stacking speakers of different ohm-age, size, and usually with one amp and I’m certain the sound quality is awful. That is such a novice way to do things. Traditionally the best approach is to have matching speakers otherwise using two mismatched speakers will in essence provide only the lowest common denominator of the two combined. Certainly not the best way if one strives for the best of sound quality and is just plain silly. I use four matching AR-LSTs with two separate matching Phase Linear Series II PL-700 that output about 700 watt RMS per-channel X’s four (2800watts), matching cables to the amps, matching speaker wire size (12AWG) and the sound quality rendered, is beyond what many here have ever experienced or ever will. I was astonished and overly thrilled the first time I heard it myself, I realized that I've finally arrived and that my system was super-special and beyond most others. I know, I know, I'm bragging but, I deserve it as I've been an AR speaker user for almost 50 years and it's taken me that many years to get to this place of audio greatness, good-gosh!!! I've got the four AR-LST's and super-high power feeding them! Relatively speaking, it's a mega-system. Sadly, I suspect my system is partly why some here despise me beyond my original NYC attitude and way of speaking. Obviously, sometimes human tendencies are difficult to suppress but, easy to recognize. They're not my concern so, let my detractors continue being whatever they want to be, I haven't a care. After all of this concern, I'd be remiss if I didn't mention the set-up of my turntable's tonearms and my concern of seeking out quality phono-cartridges, not to forgetting my strong belief in cleaning my vinyl disks with an ultrasonic cleaning regiment. I am a firm believer that the quality of input sources is equally as important as the end is, in this case the speakers. It seems many only think that if they have AR speakers at the end of the audio-chain that they're listening to quality audio however, it's every link in that chain that counts. I'll laugh all the way to my seating position and I'll continue to be amazed every time I put a vinyl disk on, full well knowing that I've done everything I can to keep that chain strong. Other than that, it looks like you're doing a smashing job on the restoration. Continue enjoying yourself with AR speakers. FM
  9. I'm seasoned and I've had more time to have fun everyday in doing whatever I do my whole life through. Additionally, I've had more time listening to AR speakers than I've been on this site and I've been here since 2004. I'm no johnny-come-lately like some folks who only have discovered these speakers in the last 10 or 15 years. I bought my AR-3a's brand new in '71. As I've stated, I learned about room placement, input set-up, and system-building before I purchased my AR's 50 years ago. I wear medals on my chest and stripes on my sleeves. From what you've stated, it seems you're not far behind.
  10. Not sure but, he's got a whole bunch of stereo stories. And I hear that in about 6 months or so he will celebrating his 'Golden Jubilee', for a 50th anniversary of using and listening to AR speakers.
  11. bhart, they're in the USA, here's one: 383452605809 Heres's the other: 333268278769 Good luck, let me know if you purchase.
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