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Kenwood L-07T FM TUNER Modified by Antenna Performance Specialties - Audiophile

$599.95 or Best Offer Unsold, $24.95 Shipping, 14-Day Returns

Seller: (2,711) 100%, Location: Plantation, Ships to: US, Item: 160787790913 Kenwood L-07T FM TUNER Modified by Antenna Performance Specialties Rack Mountable KENWOOD L-07T AUDIOPHILE FM TUNER MODIFIED BY ANTENNA PERFORMANCE SPECIALTIES EXCELLENT CONDITION This Kenwood L-07T tuner is in excellent condition cosmetically and even better condition operationally. On the rear panel is a decal that signifies that the unit was modified by Antenna Performance Specialties. Information from FMTunerinfo: Kenwood L-07T (1978, $625, detector/MPX scheme: quadrature detector, charge injection cancellation discrete MPX switches, MPX PLL generated 38k with HA1156 chip). The L-07T looks identical to the L-07TII described below, except that it's gun-metal gray in color rather than black, and its rack-mount holes are open on the outsides. Those two differences make the L-07T more "industrial-looking" than the L-07TII. We believe that the circuitry of the two tuners is mostly identical, but the L-07T uses a quadrature detector rather than the L-07TII's pulse count detector and also lacks the two extra ceramic filters that apparently run the L-07TII's meters. Here's a photo of the inside of the L-07T. Like the L-07TII, the L-07T has a 7-gang tuning capacitor and is also very sensitive and quite selective even in stock form (spec'd at 100 dB alternate channel selectivity in Narrow). Any filter modification should probably be done by a pro because the L-07T contains two Murata "Surface Acoustic Filters," specially designed by Kenwood, for the wide IF bandwidth setting and 3 older-style 4-pin ceramic filters which have 4 stages each for narrow mode. The L-07T is rare and can sell for $280-400 on eBay, with a recent high of $537 in 1/06 for one with the original box and user's manual. The matching amp is the L-07C. The prices mentioned were unmodified L-07T tuners. While we do not know exactly what was modified by Antenna Performance Specialties we do know that one deluxe package that they used to do for this tuner would cost $500. What a deal it would be if this exact unit had those mods or similar. We have no way of verifying what was done but we attest to the fact that this is one HOT tuner with great reception and sound through a good amplification system and appropriate speakers. Some would say FM can sound as good as a CD. The following is a description of the $500 modifications package that Antenna Performance Specialties used to do for this tuner model. Once again we have no way to tell what actually was done to this exact unit that we are selling. Revamped IF section. The frequency shift between wide and narrow bandwidths on this tuner is a problem. Mystery Modders will simply remove the ceramic filters in narrow bandwidth, and typically replace them with red dot 150's. BIG problem. Narrow bandwidth becomes grungy and just plain awful sounding, as the frequency shift is more noticeable as narrow bandwidth is made more narrow. Before we install new filters in narrow, wide bandwidth is tested for it's center frequency, and the ceramic filters we use in narrow are matched to the wide bandwidth. The result: better selectivity AND sound quality. The obsolete output IC's are replaced with Burr Browns, improving sound quality. Stealth diodes used in the power supply. Deemphasis and muting switches are bypassed to eliminate them from the audio signal path. The MPX Filter is completely revamped with a blend circuit that discriminating listeners prefer over simply having the highs chopped off. Electrolytic caps in audio & power supply sections upgraded, some with Black Gates (while supplies last). The RF path is modified for increased sensitivity. The unit is cleaned thoroughly, including the tuner bearing. Aligned for lowest distortion. 14 day return policy. Buyer pays for return shipping. Original shipping fees are not refundable. Shipping & Payment Paypal $24.95 Continental USA Shipping/Handling via UPS Ground inkfrog terapeak

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