spaaaz Posted May 14, 2005 Share Posted May 14, 2005 Ok I have seen lots of posts on these,what makes them special?my interest is peaked Quote Link to comment Share on other sites More sharing options...
Daddy Dee Posted May 14, 2005 Share Posted May 14, 2005 The H/K x30 line.. 430, 630, 730 and 930 are a 70's vintage twin powered receiver line. They are champs in SS bang for the buck that also happen to drive Heritage speakers quite nicely. I'm not clear on the technical issues, something to do with extended bandwidth. They can be found on Ebay, most of the time and sell sometimes for less than $50. Quote Link to comment Share on other sites More sharing options...
Marvel Posted May 14, 2005 Share Posted May 14, 2005 By twin powered, it means they have separate power supplies for each channel. They seem to sound more solid with more poewr than their actual WPC rating. For a while, you could get them easily under $50, but even at $100 they are a nice receiver. I just got a 730 from someone on the forum, and paid him $100. I think the 430 has only one aux and one phono to go with the other inputs. Mine has two aux and two phono inputs. The higher number x30s have more power as well. They look clean and sound great. If you get one for under $50, you can't go wrong. I am still very happy woth the one I got although I paid more. Marvel Quote Link to comment Share on other sites More sharing options...
ricktate Posted May 14, 2005 Share Posted May 14, 2005 Not only does the twinn trannys make it like two amps in the reciever they have very low distortion in the first watt.First time i got a HK430 i said wow.. now i got three HKs ...lol...Rick Quote Link to comment Share on other sites More sharing options...
steve Posted May 14, 2005 Share Posted May 14, 2005 I ran a HK730 with my KHorns in the early 80's, after having it run my Heresys before that. Never really appreciated how 'right" it got things..the attenuator went south on me and I chucked it about 1990..now of course I wish I had just repaired the thing! Guess I thought it was easily replaceable! Live and learn! Steve Quote Link to comment Share on other sites More sharing options...
heresy2guy Posted May 14, 2005 Share Posted May 14, 2005 Rick Tate hit the nail on the head about that magical first watt - very clean indeed. In fact, HK listed the distortion figure as an average taken from as low as 250 millawatts to as high as full-rated power. That in itself speaks volumes. -H2G Quote Link to comment Share on other sites More sharing options...
jt1stcav Posted May 14, 2005 Share Posted May 14, 2005 The HK730 looks even better when it's on and the faceplate's all lit up! Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted May 15, 2005 Share Posted May 15, 2005 730 also has pre-out/in's so you can insert eq or ?? in the loop. Plus TWO tape monitor circuits, great FM section, MONO button (how handy). Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted May 15, 2005 Share Posted May 15, 2005 Afternoon- A good friend of mine has one, and the fuses blow constantly. I think it may be bad output resistors, but I am not sure. Do any of you guys have an idea of what it might be that is wrong with it. Is it a common thing with the HKs. My NAD did the same thing and the output resistors were shot on that one too. Anyways, just a thought. Best, George Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted May 15, 2005 Share Posted May 15, 2005 Afternoon- A good friend of mine has one, and the fuses blow constantly. I think it may be bad output resistors, but I am not sure. Do any of you guys have an idea of what it might be that is wrong with it. Is it a common thing with the HKs. My NAD did the same thing and the output resistors were shot on that one too. Anyways, just a thought. Best, George Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted May 15, 2005 Share Posted May 15, 2005 Afternoon- A good friend of mine has one, and the fuses blow constantly. I think it may be bad output resistors, but I am not sure. Do any of you guys have an idea of what it might be that is wrong with it. Is it a common thing with the HKs. My NAD did the same thing and the output resistors were shot on that one too. Anyways, just a thought. Best, George Quote Link to comment Share on other sites More sharing options...
pilferus Posted May 15, 2005 Share Posted May 15, 2005 Greetings all Just picked up a hk770 from a forum member and an looking for a pre amp for it... I would like to find the hk725 pre amp...anyone have one they want to part with or have any other suggestions? regards Dana clark.clark4@comcast.net Quote Link to comment Share on other sites More sharing options...
whell Posted May 15, 2005 Share Posted May 15, 2005 George - lots of things can cause an amp to blow fuses. Can you describe under what circumstances the fuses blow? Quote Link to comment Share on other sites More sharing options...
steve Posted May 16, 2005 Share Posted May 16, 2005 hey JT1 can you post a pic of the back of that 730? I can't remember what all input/output/hookups it had! darn, I wish I had mine repaired! Thanx in advance, Steve Quote Link to comment Share on other sites More sharing options...
Marvel Posted May 16, 2005 Share Posted May 16, 2005 It has: two aux inputs two phono inputs pre out and power in connections for two sets of speakers. mute adjust pot antenna connections I can't remmeber the rest, as I dropped it off at a friend's house in Atlanta yesterday. Marvel Quote Link to comment Share on other sites More sharing options...
spaaaz Posted May 16, 2005 Author Share Posted May 16, 2005 Ok sounds like something worth listening to,might be sweet for a second system with some fortes. Quote Link to comment Share on other sites More sharing options...
steve Posted May 16, 2005 Share Posted May 16, 2005 thanx Marvel I may have to try to find another one. Steve Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted May 16, 2005 Share Posted May 16, 2005 G- have your friend replace ALL of the fuses, there are some on back panel, some on bottom, some inside unit (UNPLUG FIRST) In total , I think there are 8. SEARCH for HK and there is a lengthy post by Andy HDBRbuilder that started the whole ruckus regarding these treasures. Michael Marvel, I think the 730 has two full tape monitor loops plus the pre in/outs. Very flexible design. Quote Link to comment Share on other sites More sharing options...
st. patrick Posted May 16, 2005 Share Posted May 16, 2005 spaazzz, next time tell us you are going after it (the 730 on ebay). A lot of us here will drop back if another forum member really wants or needs something. When i saw your post re "what is all the fuss...." i didn't see any reference to the two on ebay, so i bid on the cleaner one. I have been bidding on it and just noticed it t'was you bumping the price up. I am pulling back so you can get it, and i will wait until the next clean 730 or 930 shows up. Enjoy, and think nice thoughts about me . . . and if anyone has a clean 730 or 930 , y'all know where to find me. Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted May 16, 2005 Share Posted May 16, 2005 Nicely played Patrick! How's that for teamwork guys? Michael Quote Link to comment Share on other sites More sharing options...
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