BobK Posted January 18, 2016 Author Share Posted January 18, 2016 (edited) I'm confused by the "construction paper", "tubes" and "ports" talk. Do you mean to say that you are stuffing paper into the bass reflex ports on your Choruses? Can you explain what the goal of that is? Port tubes are confusing. The chorus is a bass reflex speaker with twin 4 inch port holes on the bottom front of the speaker. The port holes are only the thickness of the wood. I think if you do the math that sized hole with push out additional bass sound at like 66hz or something like that. The longer the port tube the lower the frequency of the sound that comes from the ports. 7" is around 38hz. The main drive plays down to 45hz or so. So you get a 38hz +- 4hz or so bump combined with main drivers output. There is no free lunch though, there are downsides to making port tubes too long. I think anywhere from 2" to 7" is the safe range on this particular speaker/box. Some people have said (I don't know where they get this information from) that Klipsch made the port tubes too short on purpose. I called a speaker company and gave them the thiel specs on the woofer and box size and he calculated that 3" or just covering one port hole would be about right. In another post a fellow with my speakers used 7" tubes and played four low bass notes before and after. Before port tube - Notes A and B =, Note C was very low, Note D could not be heard at all After 7" port tubes - Note C was the same as A and B and note D could be heard but was lower than AB or C. So they do work. I took poster paper (its just thick construction paper) and cut it to 7" and rolled it to the right size and while it was in the port I expanded the roll so it was tight. Then I just taped the edges so it would stay in the tube shape. It works fine and looks fine (red ports red paper) I can get regular plastic port tubes but they will sound about the same. Edited January 18, 2016 by BobK Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted January 18, 2016 Share Posted January 18, 2016 What I have learned over the last 5 years is this not every speaker sounds good in every room. Your room and equipment make a huge contribution to how each speaker performs. Also what you hear may not be the same as what someone else does. I used to think what I just said was BS believe me it's not. Apologies as I didn't read the full thread. Have you pulled the drivers and made sure everything is hooked up? Reason I say this is I bought a set of speakers once and was very disappointed in the sound. I ordered a new set of xovers since these were 20 years old. Popped the new xovers in sounded a lirttle better but still not great pulled the drivers and the damn midrange wiring was just barely connected sound was going in and out. Put new connectors on and presto there was the sound I was expecting! Always check everything over when you buy used gear because things can happen between where you buy them and where you place em. Just my .02. Tune those Chorus up you have a fine speaker! I have ALWAYS known that not everybody hears the same! Remember going into places like Woolworths and others with my mom as a kid that sold televisions or cheaper entertainment centers and the sound would drive me NUTS! I am not talking about physically listening to something in the store, the sound would get to me anywhere in the store, and the closest I can come to in a description is that it sounded like grains of sand continuously hitting your ear drums! I learned very early on that just about nobody else could hear this Roger 1 Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted January 18, 2016 Share Posted January 18, 2016 You didn't really expect the KG4's to even come close to the choruses, considering all of the changes that you have made to the chorus, now did you? That's not even a fair fight. No I expected the Chorus speakers to blow away the KG4s. But initially when we played them we did not get a WOW these 90 pound speakers blow away the much smaller and easier to carry KG4s. So I was disappointed to the point of thinking i'm going to sell these things. To me if they are going to be a pain in the rear to move and back breakers they better perform. I am guessing the old midrange or tweeters might have been in bad shape. With the new tweeters and midrange along with port tuning gave them a much better sound. So If you get an old set of speakers you never know if they are performing as good as when they were new. This upgrade on the chorus made more of a difference than it did on my KG4s now they sound more like a $4,000 speaker. Hey BobK, To me, speaker weight has always been a selling factor along with a bigger, better sound. My Klipsch TSCMs weigh in at 250 pounds each, and I own seven of them. I sleep peacefully at night when I am on vacation with the realization that they are just to big and awkward for two guys to easily tote off! Roger 5 Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted January 18, 2016 Share Posted January 18, 2016 Hey BobK.... I see your using a Outlaw amp for power. You say it's a 130 watts.... Yea that power will work for sure and I'm sure both speakers sound good... But I gotta say this....those Chorus are laughing at a 130 watts....oh I'm sure there jammin...but imho those speakers come alive at over 200 watts..... I figure it like this.... if your pushing 65 watts with your Outlaw...that amp is at 50% it's output.....if your pushing a continuous 100 watts that amp is close to exhusting it's headroom..... Those chorus are rated at a continuous 100 watts....and a 1000 watts peak.... I'm telling ya man get a bigger amp and you will hear and "feel" what those Chorus are able to do....and not just the "loudness" ....it's the feel of those 15" woofer's woofing.....and I am in the camp of....you need power to get those woofer's moving..... And yea I'm gonna say it......again...... a big Carver TFM will get those Chorus Pumping...like few amps can.....and as Bob Carver says "you can never have to much power" Hey that's my 2cents.... imho...... Good luck and have fun with your gear..... MKP :-) Yes I can tell the chorus can handle more power than what I have. In general 100 watts is plenty for most speakers I have but most of them are smaller speakers where you don't get much more output with power. I can tell the chorus can eat more power if I had it. And these things will get loud and clear, they are a good combination of clarity and loudness. I have smaller monitors Kefs that are very accurate smooth but they do not have that visceral sound when played louder, the output sort of hits a wall on them. But those are only 88DB efficiency. They guy that sold them to me had them on a 300+ watt output old Carver amp. They did get louder but his amp had some serious hum issues so the outlaw with less power easily bested that amp. BobK, If you are pushing clean power, you can push a lot more power through them than what they are rated at, plus, a big amp with plenty of headroom will give you more Bass! Not only when playing loud, but at lower listening levels as well. A good BIG amp is the next best thing to running multi channel amps! Roger 2 Quote Link to comment Share on other sites More sharing options...
BobK Posted January 18, 2016 Author Share Posted January 18, 2016 What I have learned over the last 5 years is this not every speaker sounds good in every room. Your room and equipment make a huge contribution to how each speaker performs. Also what you hear may not be the same as what someone else does. I used to think what I just said was BS believe me it's not. Apologies as I didn't read the full thread. Have you pulled the drivers and made sure everything is hooked up? Reason I say this is I bought a set of speakers once and was very disappointed in the sound. I ordered a new set of xovers since these were 20 years old. Popped the new xovers in sounded a lirttle better but still not great pulled the drivers and the damn midrange wiring was just barely connected sound was going in and out. Put new connectors on and presto there was the sound I was expecting! Always check everything over when you buy used gear because things can happen between where you buy them and where you place em. Just my .02. Tune those Chorus up you have a fine speaker! I have ALWAYS known that not everybody hears the same! Remember going into places like Woolworths and others with my mom as a kid that sold televisions or cheaper entertainment centers and the sound would drive me NUTS! I am not talking about physically listening to something in the store, the sound would get to me anywhere in the store, and the closest I can come to in a description is that it sounded like grains of sand continuously hitting your ear drums! I learned very early on that just about nobody else could hear this Roger This is very true, what sounds good to one person is terrible to another, usually in the higher frequencies. I've had my hearing tested a few times and I have a reduction in the hmm I think the 9k range, was from an power box by a sidewalk overheated while I was walking next it it and it exploded like tnt. Ears rang for a long time. So things in that range could be bumped up for me and sound fine while for you it would sound overbearing. 1 Quote Link to comment Share on other sites More sharing options...
Matthews Posted January 18, 2016 Share Posted January 18, 2016 a big amp with plenty of headroom will give you more Bass! Not only when playing loud, but at lower listening levels as well. A good BIG amp is the next +1 - put some power to em' babies!!! 2 Quote Link to comment Share on other sites More sharing options...
John Chi-town Posted January 19, 2016 Share Posted January 19, 2016 I run a 250 WPC amp with forte II. forte II are rated 100 continuous, 500 peak. As others have stated much larger presence/head room, better bass response at all levels, and plenty of reserve capacitance power for difficult loads and or passages. Best regards, John 2 Quote Link to comment Share on other sites More sharing options...
BobK Posted January 19, 2016 Author Share Posted January 19, 2016 . ... a big Carver TFM will get those Chorus Pumping...like few amps can.....and as Bob Carver says "you can never have to much power" Hey that's my 2cents.... imho...... Good luck and have fun with your gear..... MKP :-) Like this Carver? http://wardsweb.org/audio/tfm35.htm I have not looked into whats out there for amplifiers. Outlaw sells 200 watt mono blocks that can be hooked to anything. Or and old Carver? Carvers can be had for pretty cheap, are they decent? 2 Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted January 19, 2016 Share Posted January 19, 2016 (edited) . ... a big Carver TFM will get those Chorus Pumping...like few amps can.....and as Bob Carver says "you can never have to much power" Hey that's my 2cents.... imho...... Good luck and have fun with your gear..... MKP :-) Like this Carver? http://wardsweb.org/audio/tfm35.htm I have not looked into whats out there for amplifiers. Outlaw sells 200 watt mono blocks that can be hooked to anything. Or and old Carver? Carvers can be had for pretty cheap, are they decent? That TFM-35 is the baby of the TFM family, also look up TFM-55 and TFM-75. 75's are rare and hard to come by. Yes, the old Carvers are good amps with a following If you want mono blocks, look up the Carver Silver 7T amplifier or better yet, the Carver Silver 9T amplifier.The 9T is pretty much the same as a 7T, but is a newer amp and also has back lit power meters, which the 7T does not. The T designation designates that Bob Carver built these Solid State Amplifiers to have a tube like sound and they play nice with Klipsch If you want tubes, have unlimited funds / Extremely Deep pockets, and want a total landmark of a famous amplifier that will show you what Bob Carver can do, look up the Carver Silver 7 Tube amplifier Give us your thoughts after looking these up Roger Edited January 19, 2016 by twistedcrankcammer 2 Quote Link to comment Share on other sites More sharing options...
MORE KLIPSCH PLEASE Posted January 19, 2016 Share Posted January 19, 2016 . ... a big Carver TFM will get those Chorus Pumping...like few amps can.....and as Bob Carver says "you can never have to much power" Hey that's my 2cents.... imho...... Good luck and have fun with your gear..... MKP :-) Like this Carver? http://wardsweb.org/audio/tfm35.htm I have not looked into whats out there for amplifiers. Outlaw sells 200 watt mono blocks that can be hooked to anything. Or and old Carver? Carvers can be had for pretty cheap, are they decent? That TFM-35 is the baby of the TFM family, also look up TFM-55 and TFM-75. 75's are rare and hard to come by. Yes, the old Carvers are good amps with a following If you want mono blocks, look up the Carver Silver 7T amplifier or better yet, the Carver Silver 9T amplifier.The 9T is pretty much the same as a 7T, but is a newer amp and also has back lit power meters, which the 7T does not. The T designation designates that Bob Carver built these Solid State Amplifiers to have a tube like sound and they play nice with Klipsch If you want tubes, have unlimited funds / Extremely Deep pockets, and want a total landmark of a famous amplifier that will show you what Bob Carver can do, look up the Carver Silver 7 Tube amplifier Give us your thoughts after looking these up Roger Yea what Roger said... @ 250 watts the TFM-35 is exhausted.... oh it'll be pushing those Chorus... But a TFM-55x 55, 42, 45 will just be getting warmed up... You'll have most luck finding a 55,45 or 42... The down fall with these amps is there getting old....like most of our vintage gear.... few shop really know how to work on the Carver's.... there are a few shop that do work on the carver's....if you jump on the Carver site they are listed there..... Hopefully you won't need it worked on.... Now that TFM-75 is in a league of it's own.... the last one I saw on e-bay went for over 2 grand un-tested.... they are true "gold dust" you'll have better luck finding a Silver 7t or 9t ..... Like Rodger said those Carver "T" amp do sound nice..... I also have two of the little Carver Cube M400 t's bridged to drive my Chorus ii's ..... they sound great but at higher levels they do get HOT iv'e had one shut down cuz of over heating it... I think I was asking a bit to much from it that night ... lol lol But the 55,42,45's will run cool all day long... Iv'e gotten my 42 warm to the touch but I was driving hard most of the day at the shop..... Again good luck....... there are alot of good amps.... Carver is just one of them I happen to really like... MKP :-) 2 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 19, 2016 Share Posted January 19, 2016 That TFM-35 is the baby of the TFM family, That title actually belongs to the TFM-15 2 Quote Link to comment Share on other sites More sharing options...
BobK Posted January 19, 2016 Author Share Posted January 19, 2016 You guys are trying to get me addicted to audio. Get new speakers then just get just a little more from them search for new amps etc... Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 19, 2016 Share Posted January 19, 2016 You guys are trying to get me addicted to audio. HE'S ON TO US!!!!!! 2 Quote Link to comment Share on other sites More sharing options...
jason str Posted January 19, 2016 Share Posted January 19, 2016 (edited) You guys are trying to get me addicted to audio. Get new speakers then just get just a little more from them search for new amps etc... Better than hookers or drugs. Or is it ? Edited January 19, 2016 by jason str 2 Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted January 19, 2016 Share Posted January 19, 2016 (edited) That TFM-35 is the baby of the TFM family, That title actually belongs to the TFM-15 Carl, Just going from memory hear Back in the day, we had three higher end audio stores in town. One specialized in mostly used high end, the second one specialized in Klipsch, NAD, and Nakamichi, and the third store specialized in Carver amazing loudspeakers and Carver amplifiers. They had the TFM-35, the TFM-55, and the TFM-75 all in a rack, plus they had the Silver 9T's on hand. BobK, that Carver TFM-75 is a double mono block configuration in a single, rack mountable form. The 75 actually has two separate power cords Roger Edited January 19, 2016 by twistedcrankcammer 1 Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted January 19, 2016 Share Posted January 19, 2016 I actually still have the brochures on these amplifiers from back in the day when I wanted to purchase one Roger Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 19, 2016 Share Posted January 19, 2016 Just going from memory hear Not me, I have one other wise I never would have known. Bought it new in the early 80's. Last week it let me know it was time for a cap swap so I'll be pulling it, and the pre out of service for a while. 1 Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted January 19, 2016 Share Posted January 19, 2016 Just going from memory hear Not me, I have one other wise I never would have known. Bought it new in the early 80's. Last week it let me know it was time for a cap swap so I'll be pulling it, and the pre out of service for a while. Carl, Pictures or it didn't happen back then, I wouldn't have been interested in anything smaller than the 35, I actually was looking at the 55, while drooling over the 75 and 9T's. It was probably there as well, but I just don't remember it. It definitely was not in the rack. Roger Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 19, 2016 Share Posted January 19, 2016 Pictures or it didn't happen If I was going to brag on something I owned (but actually didn't) it would be something better than a 30+ year old, 100 wpc amp 2 Quote Link to comment Share on other sites More sharing options...
twistedcrankcammer Posted January 19, 2016 Share Posted January 19, 2016 Pictures or it didn't happen If I was going to brag on something I owned (but actually didn't) it would be something better than a 30+ year old, 100 wpc amp That is why I would not have been looking at it, the first piece of equipment that I bought was either in 79 or 80 when I was 15 years old and had my first job was a Pioneer SX-3900 and it pushed a very healthy 120 watts per channel at the time. Quote Link to comment Share on other sites More sharing options...
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