Search results

  1. JohnSer

    AVR230, any reason to leave it in standby mode?

    Not a 100% sure, but I believe at some point you will loose your saved settings.
  2. JohnSer

    A thermometer and a scale will tell you which is the best receiver.

    I don't think weight and temp would be much of descriminator for low-end receivers, but I would use BOTH as a GUIDE in choosing a mid-level or higher one. As stated above, the typical AB amp receiver with more weight will most likely have a better PS, chassis, and/or heatsinks. As far as heat, I...
  3. JohnSer

    Ebay

    No worrys with bidding on Harman Audio auctions on Ebay. If there are initial problems with unit, they will return ship on their nickel. I bought a number of items from them, last spring. Would buy again from them.
  4. JohnSer

    Harman Kardon 3480...

    I have an older model 3470, that I bought refurb. Its been a good receiver for my daughter. The FM tuner is not the best. Many recommend an integrated amp, for stereo listening over any of todays receivers.
  5. JohnSer

    InFocus Question

    Dave Man, Thanks, let me know. I am in the Minni MN area for a week, and will try to check out a few places to see if they have it. Many more choices than home.
  6. JohnSer

    InFocus Question

    One came with the demo unit I have. The S-video has special pins that are not standard for the component. Get it direct from Infocus or possibly Ebay. There is some excellent info, in the Unofficial FAQ.
  7. JohnSer

    InFocus Question

    After having a X1 to demo, waiting IS the hardest part. I feel it is highly unlikely the new chipset will be worse than the old. While our family didn't see rainbows, the 4805 with 4x color wheel, should ensure we never do. Also brighter bulb and designed for widescreen, should have a brighter...
  8. JohnSer

    InFocus Question

    I demo'ed a X1 just before xmas, and have been patiently waiting for the 4805. Dave Man is correct, from all the info I have read on the X1 and 4800. There is just a slight firmware change (default mode & minor default settings). The 4800 comes with a couple of cables, and I think, a different...
  9. JohnSer

    Receiver/Separates Considerations

    Take the connector pins off. The pre-outs of your new pre/pro will go to your current receiver's main-ins. The main-ins, do not go through the preamp. Nothing will be attached to your old receiver's pre-outs. As Ernest says, this is reverse of what most do to migrate to seperates. As long as...
  10. JohnSer

    Receiver Making Cracking Noise??????

    Take a look through the top cover, at the heatsinks. If they are made of thin aluminum sheet metal, that is probably making the noise you describe. Cast or machined aluminum heatsinks usually don't have that issue. Not sure what is in your Onkyo model. My older 575X had the latter, while my...
  11. JohnSer

    Do I need an amp or will receiver be enough?

    WOW, a 52 lb JVC receiver!!! Thats something you don't see on your visit to CC or BB!!! PS: I agree with Brad.
  12. JohnSer

    Could a lower power amp actually be "better" ?

    Kevin, The only thing I had a chance to test, was an open analog input. The receiver was switched to one of the unused video inputs, that has a default setting of analog. No device was attached to the inputs. The results were very similar to the prior test. The hiss/hum might have been...
  13. JohnSer

    Could a lower power amp actually be "better" ?

    Kevin, I not sure how much work I am willing to do for 50 cents ;) To test the HK will require getting into a rats nest, and moving speakers wires around. I am not convinced that the hiss present is all amp noise. If I can find or quickly make some grounded input jacks, I'll see. It is...
  14. JohnSer

    Could a lower power amp actually be "better" ?

    Kevin, OK, FWIW, I went and tried this on my set-up. HK520 as pre/pro, Adcom 545II amp, and custom Peerless HDS439/Seas T25 speakers (about 84db/watt). Test #1, Power amp on and receiver in standby results: ear right to speaker - nothing from mid-woofer and just the very slightest hiss...
  15. JohnSer

    Could a lower power amp actually be "better" ?

    Kevin, if the only thing that changed in the system was the amps, and you had the volume at the exact same position, you are hearing the difference in db gains and +- any noise from the amps themselves. If you want to compare the noise floor of each amp, plug some grounded input connectors into...
  16. JohnSer

    Looking for a good 7 channel amp to use with my h/k 525

    Bob, I got the first Adcom sometime this late spring/early summer, and have tried a few different connections. I can't say that I heard a specific difference, but I don't run the HT to deafening levels. Current set-up, at least in theory, should be the optimum for me. I run the two channel...
  17. JohnSer

    Question on Amp Classes

    Mike, I don't doubt that the JVC gets hot, most receivers these days, do. But if it was a pure class A - 2 channel, it would be drawing 1000W at idle. Most of which, would be converted to heat!!! PS: I have found that you can always find another room that needs a sound system. :D
  18. JohnSer

    Looking for a good 7 channel amp to use with my h/k 525

    Well, the "sound" of amps is definitly subjective. Some people do hear tonal differences. As far as differences in power levels, take a look at your 525 calibrated speaker levels. Most likely, your surrounds are set lower than your fronts. The ole rule of thumb, to get 3db additional output...
  19. JohnSer

    Question on Amp Classes

    Lance, I'll agree that Panasonic/Technics made some very good value equipment. I have had very good luck with their equipment holding up, over many years. Still have a 70's Technic receiver that is still in use. I don't agree that the JVC could be anywhere close to a pure class A design. At...
  20. JohnSer

    Question on Amp Classes

    "Dynamic Super A" is marketing speak. Either of what Kevin or Robert suggest could be true. But as we know, marketing can be very creative! The JVC is most likely a class A/B amp. The extra weight probably comes from a larger transformer. The larger transformer, probably accompanied by larger...
  21. JohnSer

    Question for amplifier/electronics experts

    They are typically called "spark killers", and are found in many amps. If the leads are long enough, for the new switch, just unsolder and reuse old cap. Metal Oxide Varisters (MOV), which look like a large ceramic cap, are sometimes used for a current limiter, to prevent or lesson start-up...
  22. JohnSer

    Looking for a good 7 channel amp to use with my h/k 525

    Nope! On the 520, the only thing in common between the front 3 channels and the rear two, is the primary side of the transformer. And the primary side is not limiting the power to either. 75x5 means the rears are realy 75x2. Can't get more out of them because the fronts are not being used. The...
  23. JohnSer

    Looking for a good 7 channel amp to use with my h/k 525

    Ricky, I have a HK520 and assumed that all of its channel amps were the same, from a common power supply. ie the surround amps (if only ones used) would have the same output specs as the stereo spec. Now that I've seen the 520 schematic, I doubt that is true. The front three channels are the...
  24. JohnSer

    2 Channel Set-Up with Sub - question-been a while

    Haven't touched a passive sub in quite awhile, but when I did, both left and right channels had an in and a out. The driver within the cabinet was a dual voice coil unit. The crossovers usually consist of a iron core inductor in series with the sub and a single cap in series with the main...
  25. JohnSer

    Can't isolate hum in our HT

    Could be the amps, but wondering if you are having high or low voltage problem, from your power service. If so, going to a neighbor, might have the same issue. Do you have an AC voltmeter to take a reading? If so, take readings when its a problem and when its not, and compare.
  26. JohnSer

    What Receiver/watts to Power 4 Ohm Speakers

    Glenn, If you haven't read it, this recent thread should help: 4ohm receiver thread JMHO, I would not go with 4 ohm speakers, all around, with a receiver. If you are going to seperate power amp, in near future, then it makes sense, just make sure receiver has pre-outs. Even 8 ohm...
  27. JohnSer

    Power-wise, could I tell the difference? H/K AVR 525 -vs- AVR 7200

    I agree, with aaron, go for a seperate 2 or more channel amp.
  28. JohnSer

    Fix older Sony ES or replace?

    David, If you look inside of most modern receivers, and see all the boards, cables, and parts, you begin to wonder, how they could ever repair them, without causing other damage. But, maybe it is just a board replacement, and 90% of the cost is the board. I would try to get more details about...
  29. JohnSer

    Receiver recommendations with 4 ohm speakers

    FWIW, the only real way to tell how well a receiver will handle any particular 4 ohm speaker, is to try it. The problem is in speaker nominal ratings. An eight ohm nominal speaker can easily have certain frequencies where it dips to 6 ohms and possibly 4 ohms, But because for much of the...
  30. JohnSer

    Receiver recommendations with 4 ohm speakers

    Whichever receiver you choose, make sure it has preouts for all channels. Even if you find a receiver, that handles all channels with 4 ohm, it will most likely, be strained, at best. By going to seperate amps, you will be able to improve this. I have a HK520, which is said to have a better...
Top