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willland

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Posts posted by willland

  1. I have a denon POA-1500 in black and had the bulbs replaced about eight months ago. They have already burned out. I will try to find the LED replacemant bulbs.

    Here is part of a thread from Audiokarma.org:

    #6
    Old 08-04-2008, 12:35 PM
    Banned
    Join Date: Sep 2007
    Location: Ontario, Canada
    Posts: 825
    Quote:
    Originally Posted by dr*audio View Post
    The POA1500 uses a weird voltage lamp, as I recall. I can check the service manual when I get home, but I think it may have been a 24V lamp.
    Its been a while since I serviced one but IIRC they were 28V/40mA.
    Bill
  2. While horns offer a dramatic increase in dynamic capability, image size, and presence, with harmonic distortion less than one quarter of the value found in audiophile direct radiator systems, most direct radiators severely compress dynamic contrasts and reduce image size. In addition, many direct radiator designs suffer from dynamic compression coloration, where the highs and lows are rolled off at high SPL's, resulting in a perceived midrange boost. Many direct radiator designs are not efficient enough to be used with low-powered single-ended triodes, and even with high-wattage and high-current amplification, these loudspeakers sound polite and uninvolving compared to high efficiency loudspeakers. Single-ended tube amplifiers need not apply, for obvious reasons (low wattage).

    What he said.

    Colin,

    Now you need to change your avatar with a picture of you sporting that fancy new beard.[Y]

    What Colter said. Great to meet you and all the rest of the guys at Marshall's.

    Bill

  3. Wanted seperate power and pre,dont know where to start,college student so the more economical the better!!! help!!!!

    Cswep,

    Welcome to the forum. Here is a link to an Ebay ad. I almost bought this from the guy(Alex) when he had it on C-list. We spoke a couple of times. He emailed me these beautiful photos of the amp. I opted to get a sweet Onkyo Integra A-9711 integrated from a guy in Texas. Eighties Denon gear is of high quality and sounds really good powering the Forte's. I currently am running an 80's denon setup with my Forte's. If you want his email address, send me a PM.

    http://cgi.ebay.com/DENON-PMA-750-INTEGRATED-AMPLIFIER-MADE-JAPAN-/130390550304?cmd=ViewItem&pt=Vintage_Electronics_R2&hash=item1e5be1e720

    Bill

  4. KG-2's.

    Specifications

    FREQUENCY RESPONSE 35Hz-20kHz(+-)3dB
    POWER HANDLING 65 watts maximum continuous (325 watts peak)
    SENSITIVITY 90.5dB @ 1watt/1meter
    NOMINAL IMPEDANCE 4 ohms
    TWEETER K-72-K 1" (2.54cm) Phenolic dome
    HIGH FREQUENCY HORN Dhorm
    WOOFER K-9-K 8" (20.32cm) Poly ICG cone active / KD-10 10" (20.32cm) Fiber-composite cone passive
    ENCLOSURE MATERIAL Medium density fiberboard construction (MDF)
    ENCLOSURE TYPE Bass reflex via passive radiator
    DIMENSIONS 18.9" (48cm) x 13.25" (33.7cm) x 11.5" (29.2cm)
    WEIGHT 28 lbs. (12.7kg)
    FINISHES Walnut Oil, Oak Oil, Finished Black
    BUILT FROM 1982
    BUILT UNTIL

    1992

    RB-5's

    Specifications

    FREQUENCY RESPONSE 48Hz-20kHz(+-)3dB
    POWER HANDLING 150 watts maximum continuous (400 watts peak)
    SENSITIVITY 96dB @ 1watt/1meter
    NOMINAL IMPEDANCE 8 ohms
    TWEETER K-105-K 1" (2.54cm) Titanium dome compression driver
    HIGH FREQUENCY HORN 6" square 90(o) x 60(o) Tractrix® Horn
    WOOFER K-1084-S 8" (20.32cm) Cerametallic® cone / cast polymer frame
    ENCLOSURE MATERIAL Medium density fiberboard construction (MDF)
    ENCLOSURE TYPE Bass reflex via rear-mounted port
    DIMENSIONS 17" (43.2cm) x 9" (22.9cm) x 12.2" (30.9cm)
    WEIGHT 23 lbs. (10.5kg)
    FINISHES Oak, Mahogany, or Black wood veneer
    BUILT FROM 1999
    BUILT UNTIL

    2001

    With the RB-5's, don't let the published specs fool you, they put out some killer bass for bookshelves.

    Bill

  5. I have a Yamaha RX-750 receiver, (about 1992 vintage I think), that has 2-channel output at 80W per chanel. I am driving a set of Klipsch Forte' II and a set of KG3.2 speakers in my living room. All speakers share the same wall.

    Doug B,

    Welcome to the forum.

    Are you running all four speakers with 1 pair as speakers A and 1 pair as speakers B with AB running together. With this configuration, you have split the load and all four speakers are running at 4 ohms. Your Yamaha may not have enough current to handle it which might explain the lack of fullness and loudness. Your receiver is very well built but maybe at higher volumes with all four speakers it runs out of steam. You might want to keep what you have and add an outboard amp(or amps) to boost the power. I have an Acurus A150(150w/ch) amp for sale in the Garage Sale section if you are interested.

    http://forums.klipsch.com/forums/t/134826.aspx

    If you replace the KG 3.2's with Chorus II's, I would definitely suggest adding an amp.

    Bill

  6. Hang man,

    My experience with B&K amps has been overwhelmingly positive. I picked up a B&K Ref 4430(200w/ch) amp to go with my Onkyo TX-SR705 receiver(100w/ch) and the difference it made was night and day. With my RF-63's at mid to high volume, the Onkyo started to strain but adding the B&K was like adding a supercharger with the tach needle climbing quickly. The punch down low was very audible and instrument seperation was very defined. The most impressive thing about the B&K is that this is all evident even at low volumes.

    Maybe some techheads will chime in but maybe the volume difference is because the Rotel has a lower imput impedance(22 k Ohms) than the B&K(33.2 k Ohms) and matches better with the Onkyo's output impedance. I don't know if I even have a clue but it sounds good. Your B&K just might have an issue because it is a very high current amp(75 amps peak to peak) with loads of power(200w/ch @ 8 ohms/375w/ch @ 4 ohms) and a lack of volume should not be the case.

    Bill

  7. I'm guessing you wouldn't use the first link as a transport with the dac in the second link?

    From what I understand, the Cambridge Audio Azur 650C is a great transport with excellent DACS(Wolfson WM8740). My friend just bought the Azur 650A integrated amp and is probably going to get the matching 650C player. If this player is built anything like the amp, it will be awesome sounding also.

    You probably will not need the Dac Magic if you get this player.

    Bill

  8. Thanks from a new Klipsch addict!

    Mitch

    Mitch,

    Welcome to the forum. I had a pair of walnut KG4's about a year ago and they were surely no where near what I would call flat sounding. It definitely would be a good idea to have them recapped(26 years and counting) and maybe a new titanium tweeter diaphram from Bob Crites(http://critesspeakers.com/). Tweeter diaphrams usually don't degrade over time they just go bad. For about $100.00 those babies will live to sing again.

    Bill

  9. Hules98,

    Welcome to the forum.

    The RB-61's are nice bookshelf speakers and the RC-52 is the perfect matching center. Your HK should blend nicely with them. Try the Yammy sub and if you then think it is lacking, search for another one. The surrounds should be okay for now being that timber matching is not as important as your front soundstage. If they don't float your boat, look for a pair of RS-42's.

    Bill

  10. How do you like your Marantz?

    By far the best sounding setup in my house. Even after using it as a preamp with an outboard amp(Marantz or Acurus), the classic vintage Marantz "warmth" still comes through just with more authority. My Quartets and Heresy's really sing. My RB-5's have sounded their best hooked up to the 2252B.

    Bill

  11. So far I'm thinking on what to pair it up with - RF-7, RF-62, RB3

    Will need to hook it up and see how this thing sounds :)

    Yura,

    I would skip the RF-7's and try it out with the RB3's. The RF-7 just might be too much speaker for your Pioneer to drive. I know it is old school wattage but 35w/ch into 8ohms/40w/ch into 4ohms may not have enough ooomph to do the job properly. It may not hurt to try it but keep the decibels to a minimum.

    Bill

  12. Jrod,

    I don't really know much about that model but what I do know is that vintage(70's) SS receivers sound great with Heritage Klipsch. I did a little research and most sources I have seen puts the wattage at 70w/ch(not confirmed). If that does not float your boat, take a look at this.

    http://oklahomacity.craigslist.org/ele/1696651163.html

    This setup looks like plug and play with the amp rated at 80w/ch.

    I had the older NAD 1020A preamp, 2150(50w/ch) amp, 4125 tuner combo powering my Forte's and they sounded great together. Very warm with good detail. NAD amps power ratings are very conservative.

    Worth a look at.

    Bill

  13. Are,

    Welcome to the forum. With only five posts you still deserve a welcome.

    While the RB-81's are very dynamic and offer very good bass extension for a bookshelf speaker, in comparison to the Heresy's, the mid and high detail fall a little short. While the bass is stronger with the RB-81's, the horn can't reproduce the seperation that the Heresy's do. If you listen to mostly rock and are not adding a subwoofer, the RB-81's with fit the bill. If you want the better detail and seperation, get the Heresy's and a sub to fill the gap down low. The Dynaco might better match the Heresy's also.

    Bill

  14. Thanks, Bill. Appreciate the feeedback. What's your opinion of the before and after of the crossover rebuild?

    I only repalced the diaphrams. Have not gotten to the crossovers yet. I have seen tons of very positive feedback when someone either recaps the crossovers or has Bob Crites build them a crossover board. Just refreshing the caps is cheaper but a new crossover board with all new parts is a great option if you don't mind spending a little more. Either should result in a noticeable sonic improvement.

    Bill

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