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  • ·  收音头排行榜(作者:阿明 时间: 点击数: 177)
  • 昨天,从网上查到了关于收音头的排行榜,内有机器的性能简介、二手价格以及生产年代,有一定参考性,现转摘如下,供同好们参考。
    TOP OF THE LINE (十台顶级机子)
    Kenwood 600T and 650T(late 1970\'s)
    - predecessor of the KT-917
    - used can cost $500+
    - 8 gang front end
    - 12 element IF (3 4-pin 4-staged filters), so difficult to modify since 3 pin ceramics not used
    - double balanced mixer minimizes harmonics and spurs
    - 650T said to be identical to the 600T, but w/ a bronze face. Rare!

    Kenwood KT-917(1980-1982)
    - list price new was $1100; used can still cost $500-$750
    - 9 gang front end
    - excellent signal/noise ratio
    - double balanced mixer minimizes harmonics and spurs
    - 3 IF settings; deviation/multipath meter along
    - difficult to modify IF section, as it uses 4 pin filters, not \"traditional\" 3 pin ones
    - read a more detailed review

    Kenwood KT-8300 (and KT-9900) (late 1970\'s)
    - 6 gang tuner, it rates well w/ the KT-815 and KT-7500
    - 5 IF filters, but difficult to modify the IF due to 4 pin filters
    - sells for $175 - $250 used
    - KT-9900 said to be a bronze-faced European version of the KT-8300; one KT-9900 seen on eBay 5/2002

    Sansui TU-X1 (1980)
    - rated \"better than the TX-9800 but worse than the KT-917\" by one user
    - sold for ~$1000 new, can be found for $750+, though rare and sometimes for more money
    - was meant to compete with the KT-917
    - heavy (40 lbs)

    Yamaha T-85 (digital model from 1986-1989)
    - 9 gang front end, so overload resistant
    - 5 (or more?) IF filters
    - recommended by several DX\'ers due to it\'s overload rejection capability
    - digital tuner, has fine tuning in .01 MHz steps
    - see some of the T-85\'s specs


    EXCELLENT (十台优秀级型号)
    Kenwood KT-1100 (non-USA overseas, 1984) thanks to Peter Körner for the info
    - 5 gangs on FM, 3 gangs for AM
    - 4 IF filters (2 in \"wide\", all 4 in \"narrow\" mode) appear easy to modify
    - Peter ranked this tuner equal to the KT-917 in some respects, but noted some treble \"smearing\" when compared to the KT-917
    - Peter also ranked this tuner better than the KT-1100SD in most measurements
    - Read more about the KT-1100

    Kenwood KT-1100SD (around 1985) thanks to Peter Körner for the info below
    - was not sold in the USA (only overseas)
    - 5 gang varicap quartz synthesizer, tunes in 50 kHz steps
    - 4 different IF selectable selectivities
    - 5 ceramic IF filters all 180kHz, easily modifiable.
    - muting while tuning can be disabled, and \"flywheel\" tuning can be achieved with a mod.

    Kenwood KT-7500
    - 5 gangs, 5 IF filters
    - $80-$120 on eBay unmodified

    Kenwood KT-8005 (~1973) thanks to Peter Körner for the info
    - 5 gang tuning capacitor
    - two (or 4??) metal cased dual (four staged) IF filters (traditional ceramic filters are 2 staged)

    Kenwood KT-815 and KT-8155 (circa ~1980)
    - 5 gang front end
    - 4 IF filters - standard 3 pin IF section, so easier to modify
    - I recommend it - it outperforms my Onkyo T-9090II in most aspects
    - remove 300W balun on circuit board in rear near the 300W antenna jack to get an extra 2 dB of sensitivity
    - generally $150 or less used; KT-8155 was a black faced version, perhaps only sold overseas?

    MITSUBISHI DA-F20 (early 1980\'s)
    - $60-$130 used
    - one long-time TX-9500 user reported this tuner is now his primary tuner due to it\'s better sensitivity
    - Digital readout, presumed to be from around 1981 or 1982
    - Wide/narrow IF settings with separate IF paths

    Onkyo T-4711(1990\'s)
    - Digital tuner offered in black (standard) and goldish-silver face; tunes in 25 KHz steps
    - Has a tuning knob, rare for a digital tuner and nice to use; 40 presets; remote-control required for switching between A and B antenna
    - RDS capability - very handy for DX\'ers
    - 6 IF filters (wide/narrow option)
    - the circuit board is nicely laid out and easy to read
    - IF mods are more difficult than most (back panel must be removed, and lots of plastic locks and a few screws on the board itself)
    - my T-4711 is slightly more sensitive than my T-9090II
    - more presets, RDS, better sensitivity, and the tuning knob make the T-4711 much prefered over my T-9090II.
    - seen on eBay ranging from $200 - $350
    - view Onkyo\'s overview of this tuner

    Onkyo T-9090II(1988-1991) and T-9090 (1984-1988)
    - digital tuning in small increments (.025), 20 presets
    - Good out-of-the-box performance w/o IF mods (comes by default with multiple 150KHz filters in super-narrow mode); IF easy to modify further
    - separate IF paths for wide and super narrow modes
    - $250-$500 used
    - Note that the T-9090 is almost identical, but larger .2 MHz tuning steps, only 1 antenna input, and only 2 IF modes
    - View Todd Emslie\'s review

    Pioneer F-28
    - 5 gangs, 4 IF filters w/ wide/narrow option
    - very little DX\'er input at this point - might be a better performer than this

    Pioneer TX-9100 (1973-1975)
    - 5 gangs and 4 filters
    - $100-$200 range common
    - well liked, good specs, and a decent AM section
    - difficult to IF modify due to board layout

    Pioneer TX-9500(and TX-9500II) (1976-1979)
    - similar recommendations as the TX-9800; 9500 is more common on eBay, sells for $100-$175.
    - 9500 is easily modified; one user said it was difficult to modify but it\'s unclear as to if it\'s certain production runs, the 9500II, or just the opinion of that one DX\'er. :)
    - 5 gangs, 9500 has 4 filters, 9500II has 5 filters and a unique filter (used in wide mode??)

    Pioneer TX-9800 (1979-1981)
    - recommended my numerous DX\'ers; 5 gangs and 5 IF filters
    - IF modifications are fairly easy, though a few filters are situated next to a metal support bar, making for difficult access
    - my TX-9800 has slightly worse image rejection than the KT-815, but I\'ve yet to tune-up the front-end
    - fairly \"common\", nice used units range from $200-$300; modified units can cost more; units with minor cosmetic problems, burned out lights, etc, can be found for $125-$200.

    Sansui TU-919 (1979-1981)
    - has both a digital readout and analog dial
    - 5 gang front-end
    - very frequently available on eBay - despite this prices have ranged from $250 to an extremely overpriced $600

    Sansui TU-719 (late 1970\'s)
    - 4 IF filters, 4 gang front end
    - similar to the TU-717, but one DX\'er rated it better out of the box than the 717

    Sansui TU-9900 (mid 1970\'s)
    - 5 gangs; wide/narrow IF switch
    - doesn\'t use traditional 3 pin ceramic IF filters, so difficult to enhance selectivity
    - units in very good condition can sell for $300-$550

    Technics ST-9030 (1978)
    - FM-only tuner with an 8 gang front end and 5 IF filters
    - easy to IF modify
    - has phenominal image rejection
    - very nice to operate, very smooth tuning and a large analog display
    - more sensitive than my T-9090II and almost as selective post modification; slightly less sensitive than my KT-815, but an alignment made it very close
    - sells for $150-$200 stock, $300+ when modified

    Yamaha TX-1000 and TX-1000/U
    - Digital tuner, seen on eBay for $225-$325; sold for $550-$600 new
    - Not much DX\'er input, but has specs comparable to the T-85
    - More info to come...


    VERY GOOD (十台较好级型号)
    Carver TX-11 (and TX-11a and TX-11b)
    - FM only TX-11 began production in 1985; TX-11b sold in the 1990\'s - widely used in DX circles
    - Easy to modify IF section
    - Sold for $485 new, will cost $200+ used
    - View specs here

    Denon TU-767
    - 1985 digital model
    - tunes in .1 MHz increments
    - has a solid audiophile reputation, so might be a good choice for audiophile-DX\'ers

    Denon TU-800 (1988)
    - 8 IF filters (wide/narrow/super narrow)
    - one DX\'er commented \"the most sensitive tuner he\'s ever seen\"; but did have some overload
    - 30 presets, .1 MHz tuning steps might be a tad large for some DX\'ers
    - DX\'ers may also be frustrated by it\'s automatically returning signals to stereo when a certain signal threshold is reached

    Kenwood KT-7300
    - reports were that this model was highly variable in performance, but generally very good. Check out the KT-7500 for a more reliable performer
    - 4 gangs, 3 IF filters
    - A nice KT-7300 sold for $76.50 in April 2002 on eBay

    Pioneer TX-7800 (1979)
    - 4 gangs, 3 IF filters
    - some variance in performance noted - some rate it along side the KT-7300, and others better than the KT-7300 and KT-7500
    - great bargain DX tuner once IF modified; found for under $100 and fairly common

    Realistic TM-1001(1979)
    - 4 gangs, 4 filters
    - winde/narrow switch, high blend switch
    - not much DX\'er input on this tuner, but is a good deal for the money (less than $75)
    - see the specs

    Sansui TU-717 (1977-1979)
    - 4 gang front-end, 4 IF filters
    - VERY common on eBay - about 20 appeared on eBay in April and May; runs about $140-$230 used
    - good, easy to IF modify, but doesn\'t rate w/ the top of the line Sansui\'s, Kenwoods and Pioneers

    Yamaha T-80
    - 4 IF Filters, and easy to modify
    - WTFDA\'er Steve Solomon notes \"95% the sensitivity of the T-85\"
    - digital tuner w/ separate fine tuning (in .01 MHz steps)


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