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Is there some secret I am missing here with "BASE" instead of "BASS?" Last I checked it referred to 1) A feeling felt through speakers and 2) A freshwater fish. BASS IN YOUR FACE ------------------ Eico HF-81 1975 Walnut Klipschorns

LOL. Those darned summer jobs. ------------------ Eico HF-81 1975 Walnut Klipschorns

Posting this for those who are interested and can afford them at this time. Is this a decent price for used? Are the upgrades stated worth it? How much do these usually price at new? http://cgi.audiogon.com/cgi-bin/cl.pl?ampstube&1034906013&class&3&4& ------------------ Eico HF-81 1975 Walnut Klipschorns

I have a question for MH and crew regarding the Eico unit. Is it necessary to have a fuse in the back of the unit at all times? I haven't had one since I got the unit months ago and have been using it often. I also leave the roof off at all times and have touched the "inside" plenty but have never experienced a shock. Also, for Khorns, I am supposed to have the speaker wire hooked up to the 8 ohm terminals correct? Finally, Mobile, do you remember the name of the gentleman who offered to look my unit over when I posted about the hum I was getting? We talked about how it would go away if I jolted/moved the unit a bit but would then come back later? I rewired the back and made sure none of the wire was reaching the other terminals and I haven't experienced the hum in quite some time now; however, I am still interested in sending him the unit for inspection.

I have heard others discuss this in the past about placement of Khorns. After performing a search I couldn't come up with anything. What exactly is a hot corner?

Can someone help me out with this. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1367488473

If you are referring to these GOOD LUCK. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1359177169 Your k-horns are VERY nice but they are not quite in the same league as these. I think the max offer you would find on yours to be in the 1700-2000 range. This is just my opinion though and I am sure others may disagree.

How far are you travelling? Where are you picking them up from?

I must say that looks rather gross. Original but gross.

I live very close to this area and would be happy to go inspect them for any potential buyer. If anyone is interested post up and let me know.

Sorry I haven't responded back in a few days. Been busy with summer school. I can't thank you enough for the offer Craig and I would like to take you up on it. I am going to reconnect the Eico today and see how long it takes for the hum to show up. Last night I took the bottom of the unit off to check the wiring and everything looked pretty good, but then again I am not quite sure what I am looking for. The orange caps had .25 MF written on them. At least thats what I think they said. I am at school right now and can't check but will update this post as soon as I get home. As far as the hum is concerned I don't think it is getting louder when I turn up the volume knob. It just starts as a low hum and progresses to a certain level where it maintains that level until I nudge/shift the amp and then it stops. It's really quite strange. If the hum starts to occur a simple nudge or bump of the unit causes it to go away temporarily. Then awhile later it shows up again and I repeat the process. I unfortunately do not have a tube tester yet so I have no idea as to the status of these tubes except for the fact that they all seem to light up quite nicely. The tubes are: 2 - 12AU7(RCA's I believe), 4-12AX7 (2 GE & 2 Baldwin GE??), 2 - 6CA4 (Sylvania with AGS above the name), and 4 - 6BQ5/EL-84 (Brand new JJ Tesla with less than 10 hours on them according to the gentleman I purchased the unit from). Anyhow on another note, the guy gave me an Eico FM tuner as well that I finally got to work after figuring out the connection. Its model number is HFT-90, same as the one I saw on Mobile Homeless' website. Surprising how good it sounds for a mono tuner. If you don't have any objections Craig I wouldn't mind sending you that unit as well to see what you can do with it, if anything, to make it better. I want to thank you again for the offer. I am really quite surprised to see such friendly people on a BB. It is nice to know that there are still people willing to help others out there. I will update this again later this afternoon when I get the Eico up and running to try and describe this hum in more detail.

I was just chatting with the owner via email and he informed me that they were won by someone from Taiwan. Who knows if he happens to be on this BB? Probably not I would assume. About the auction...I think the reason this pair did so well had to do with the detailed description and all the pics he supplied. Most auctions that I see become successful are one's with loads of pics from different angles. It seems to make potential buyers more comfortable with their bid. The description was what had the greatest impact on me. You can tell when someone knows what they are talking about and when they do not. This gentleman knew his stuff and it showed. Personally I wish I had won them myself. I have a pair from 1975 that are in pristine shape but would really have loved to do my own side by side comparison between the two models. Naturally I would have tried to convince my girlfriend that we need to make room for all four but that wouldn't happen. If they are as good as the description says the 1975 pair would have been on eBay next week.

Thank you very much NOS for taking a stab at my problem. I was hoping someone was going to respond. I disconnected the amp yesterday after turning it off and unfortunately had to reconnect my Yamaha receiver. I was shocked to hear how different it sounds now, compared to a few months ago when I hooked up the Eico. I have officially been spoiled by the tubes. Anyhow I guess I will have to be on the look out now for someone capable of analyzing my problem locally. Do you have any suggestions for where I should begin to look? What would the person's title be that I would need to look for? Also, I had the wires connected to the 8 Ohm outputs on the back of the amp. That is where I was supposed to connect them too correct? It's not supposed to be the 4 Ohm is it? What would happen if they were hooked up to the 4's?

I acquired a pair of 1975 Khorns about five months ago and purchased an Eico HF-81 about three months ago. For the past three months the Eico has been working flawlessly while my Yamaha receiver collects dust. Last night I am watching the World Cup game and my Eico had been running most of the day. I had listened to some music in the morning and then left the unit on planning to listen again later that evening. This is a sub-question I have. Should I be turning the unit on and off everytime I use it or can I turn it on and leave it on the whole day or maybe even two to three days at a time? Anyhow back to the story...the unit had been on for maybe 6-7 hours without the cd player running tunes through it and while I am watching the game I start to hear/feel this really low level humming noise coming from the speakers. After about 2-3 minutes the hum starts to escalate in volume and continued to rise until it reached the maximum volume level I had the Eico set at. It wasn't serious thank God, I had it between 1 and 2 on the volume. Anyhow, my question is what the heck is causing it? I know it's coming from the amp but how do I eliminate it? The other thing I didn't like was when I turned the amp off there was this slight little popping sound appearing as though it was coming from the tweeters. That popping sound had never occured before yesterday. Any thoughts or solutions would be greatly appreciated.