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youngjj

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Posts posted by youngjj

  1. Harman Kardon 630 twin powered receiver, very good condition and sound, more power/better sound than the 430, serviced by HK certified tech in 2008, fm tuner section was non-functional when I bought it, but I will include at no charge a very good Yamaha TX-350 tuner that I bought to use with the 630, used these with Heresys for some sweet sound - $150 for the pair

    HK 630 Description

    First Manufactured: 1973

    Last Manufactured: 1975

    Specifications:

    Tuner Section

    Sensitivity : FM - 1.9 microvolts, Ihf
    Signal-to-Noise Ratio : 70dB
    Capture Ratio : 2.5dB
    Image Rejection : 50dB
    Spurious Response Rejection : 78dB
    Multiplex Separation : 35dB
    Total Harmonic Distortion : MONO - 0.6%STEREO - 0.7%

    Amplifier Section

    Power Output : 30/30 W RMS @ 8 ohms from 20-20kHz at Power Bandwidth : from less than 10Hz to beyond 40kHz
    Total Harmonic Distortion : Intermodulation Distortion : Hum and Noise : Better than 85dB below rated output
    Damping Factor : 40:1
    Frequency Response : from below 4Hz beyond 70kHz +/-0.5dB at normal power levelsfrom below 1 hertz to beyond 100kHz +/-1dB at normal power levels
    Square Wave Tilt : Rise Time : SQUARE WAVE - Stability : absolutely stable with all types of speakers.

    Yamaha TX-350 Description

    First Manufactured: 1991

    Last Manufactured: 1994

    Specifications

    Type: Mono/Stereo Tuner

    Tuning Bands: FM, MW
    Tuning Scale: Digital
    FM Tuning Range: 87.5 to 108 MHz
    MW Tuning Range: 530 to 1710 kHz
    Sensitivity: 1.6uV (FM), 200uV (MW)
    Signal to Noise Ratio: 76dB (FM), 50dB (MW)
    Distortion: 0.2% (FM), 0.3% (MW)
    Selectivity: 70dB (FM), 32dB (MW)
    Frequency response: 30Hz to 15kHz (FM)
    Output: 500mV (FM), 150mV (MW)

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  2. Really nice matched B&K Components pair, Pro-5 pre-amp and ST-140 power amp. Sweet tube-like sound. Pro-5 has a good phono stage. Used these with LaScalas and Choruses. Great presence and soundstage. I moved last year and retired. Now in a smaller house. Had to sell the LaScalas and now the amps. Honestly, the B&Ks sound as good to me as the Scott LK-72 tube amp refurbed by Craig Ostby that I also used with the LaScalas. I have seen great reviews for the ST-140. It is a solid unit. I have also seen some for the Pro-5 complaining of problems with the RCA connectors, but I have had no problems at all. Listening in the passive mode on the Pro-5, bypassing the gain stage, the sound is excellent. $200 for the pair. Charlotte, NC area. I will be glad to ship and will pack them like armor plate for safe arrival. Thanks.

    B&K ST-140 power amplifier
    Specifications

    Description: Solid-state stereo power amplifier. Output power: 70Wpc into 8 ohms, 20Hz-20kHz (1984); 105Wpc into 8 ohms (20.2dBW) 105W into 4 ohms (17.2dBW), both continuous power, 5Hz-45kHz, with 0.09% THD (1989). Dynamic headroom: 3.2 dB (1984). Frequency response: 3Hz-70kHz ±3dB (1984). Input impedance: 24.3k ohms (1989). Sensitivity: 1.1V for full output (1984); 120mV for 1W (1989).
    Dimensions: 19" W by 6" H by 15" D. Weight: 25 lbs.
    Price: No longer available (2002); $395 (1984); $440 (1987); $498 (1989).
    Manufacturer: B&K Components Ltd., 2100 Old Union Road, Buffalo, New York 14227. Tel: (800) 543-5252, (716) 656-0023. Web: www.bkcomp.com.

    B&K Pro-5 preamplifier
    Specifications
    Description: FET loading - Maximizes linearity and minimizes noise.

    DIRECT BYPASS - This switch selects the active or passive mode. In the active mode (switch out) the selected signal is processed through a 20 dB DC coupled amplifier.
    The passive mode (switch in) bypasses the gain stage of the preamplifier.
    Bass and Treble tone controls with tone defeat switch
    Left/Right Balance control
    Wide bandwidth - Assures clear reproduction with all styles of music. Polypropylene film capacitors - RIAA accuracy typically within .2 dB through the use of polypropylene film capacitors. This produces a transparent sound with highly accurate musical timbre.
    Volume control - From a single precision attenuator. Accuracy of volume attenuation is within .1 dB from channel to channel.
    Excellent MM Phono stage Low noise 1% Metal Film resistors
    Dimensions: 19"W x 11"D x 3 5/8"H.
    Weight: 13 lbs.

    Price: No longer available

    Manufacturer: B&K Components Ltd., 2100 Old Union Road, Buffalo, New York 14227. Tel: (800) 543-5252, (716) 656-0023. Web: www.bkcomp.com.

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  3. I have a very nice, fully functional HK 730, if you are interested. These twin-powered receivers are great with Klipsch speakers, as you have probably seen in other posts. I used it with Heresys and Choruses. I have not posted it yet in the Garage Sale forum, but my asking price is $175. You can check on preferred shipping costs. I had it serviced by an HK certified tech in 2008. Since then I have moved to other electronics. I'll attach a couple of photos. I can send better ones, if you like. Jeff

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  4. Mike - I have a very nice, fully functional HK 730, if you would like to return to that. I am sure I could get it to you in Florida shipped for well under $250. My asking price is $175. You can check on preferred shipping costs. I used the HK for a couple of years after having it serviced by an HK certified tech in 2008. Since then I have moved to other electronics. I'll attach a couple of photos. I can send better ones, if you like. Jeff

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  5. Academy - Bought from a Forum member about 4 years ago and used 3 years. 8.5-9/10 condition. Black. Moved and no longer have space to use it. Asking $375. Prefer local pick up, but will ship at cost using buyers preferred shipper. Charlotte, NC area.

    KSP S-6 Surrounds - Bought from a Forum member 3 years ago and barely used before moving. 8-8.5/10 condition cosmetically, but fine acoustically. Black. 60-20K Hz, 94 db sensitivity, 6" Tractrix horns, 6.5" woofers. No longer have space to use these. Fairly large and reportedly this model was used in some theaters early on. Asking $375. Prefer local pick up, but will ship at cost using buyers preferred shipper. Charlotte, NC area.

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  6. Bought from a Forum member 3 years ago and barely used before moving. Conservatively, 8.5/10 condition cosmetically, but wonderful acoustically. Black. 60-20K Hz, 94 db sensitivity, 6" Tractrix horns, 6.5" woofers. No longer have space to use these. Asking $375. Prefer local pick up, but will ship at cost using buyers preferred shipper. Charlotte, NC area.

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  7. SOLD Bought from a Forum member about 4 years ago and used 3 years. Conservatively 8.5-9/10 condition. Black. It looks and performs great. Moved, downsized and no longer have space to use it. I had two 5.1 setups and had to reduce to the smaller one of the two when I moved. Asking $375. Prefer local pick up, but will ship at cost using buyers preferred shipper. Charlotte, NC area.

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