I have a Sherwood 2100 in my basement system that I always felt sounded pretty good and did a good job of pulling in stations considering I'm only using an amplified Radio Shack indoor antenna which is effectively only about 2 feet above ground level. I recently did a shootout in my main system of tuners that I have acquired. Strictly on sound quality for now, didn’t do any DXing comparisons. My main tuner is a McIntosh MR74. I also have a Scott 310E and a Scott 330C along with a Scott and a Fisher MPX adaptor. To this point none listed here have had alignments since I’ve owned them nor any hotrodding. Only required servicing to assure they are in good working condition.
On the initial tests the Scott 310E left everything else in the dust. It was much more open sounding with better top end extension and the sound stage is incredible. The MR74 had better bottom end than the rest but the soundstage was more closed in and it was a bit veiled sounding compared to the Scott 310E. The Sherwood did well but was less dynamic overall loosing a little on both the top and bottom ends. Stereo separation was less than either the 310 or MR74. The Scott 330C with the Scott MPX adaptor was close to the Sherwood and lost a little through the Fisher adaptor.
I have since done a little work on the McIntosh replacing the output coupling capacitors with Blackgates as well as some of the supply filter caps. The main 4 section cap in the power supply is still original but measures perfectly good. I also replaced the coupling caps from the MPX circuit to the output amp with polypropylene. I burned the tuner in for 100 hours and now the sound quality is very close to the 310E. The McIntosh now has even better tighter bottom end with a greatly improved soundstage. The 310 still has the edge on the top end by just a bit.
My next step is to do alignments on all tuners and see what improvements I can make there. I very recently picked up a mint Sound Technologies 1000A generator to use for the task. I’ll post an update when I have a chance though it may be a while as I only have alignment procedures for the 310 and MR74 so far and have to gather the service manuals for the other pieces not to mention the time to do it all.
i find this interesting. i owned a mac mr74. i only got it cuz of the experience i had w/a refurb'd and aligned mr77, done by a mac tech w/35+ years experience, recommended by the factory. of the 100+ tunas i have owned over the past ten years or so, the mr77 easily ranked in the bottom three. this, and the mr74 are supposed to be mac's best sounding s/s tunas. so, at the prodding of the folks over at the yahoo tuna forum, i tried another, on the off chance that, perhaps, even after refurb and alignment, the mr77 i owned was a dud. well, the mint but never serviced mr74 i picked up was better than the mr77, but not by a lot. still ranks near the bottom of the heap of all the tunas i have had thru my system.
i have also owned two sets of scott 310d/335 mpx decoders, which are supposed to be a hair better than the one-box 310e. one set was stock, the other refurb'd and modded by scott guru foster blair. both blew the mr74 into the weeds sonically. in all areas - detail, soundstaging, extension, you name it. (but the 310d's sounded better w/a one thing audio mpx decoder than w/the scott mpx's.)
now to the sherwoods... i have a slightly modded, refurb'd s3000v, a stock never serviced s2100ll, and a stock never serviced mono s3000lll. all sound even better than the scotts, the mono s3000lll w/the above-mentioned one-thing audio mpx decoder... the sherwoods give any tuna extant a run for the money when sonics are considered, imo. including my modded refurb'd sansui tu-x1, modded refurb'd sansui tu9900, and modded refurb'd hk citation 18, modded refurb'd heathkit aj1600, aiwa at9700u, rotel rht10, philips ah6731, accuphase t100, modded refurb'd mitsubishi da-f20. these are about the best s/s tunas i have had the pleasure of owning... i have not had the pleasure of auditioning the accuphase t1000, which some folks say put all other tunas on a lower tier, when it's run thru a dac...
ymmv,
doug s.