SQLGuy
Member
Hi folks,
A bit of a quad noob here. While I have noticed that Full Logic SQ decoders seem a bit scarce/pricey, the Motorola chips for them seem pretty easy to find, for fairly reasonable money. Is there anyone that has done, or is doing, newer kits or products based on these?
Also, in a related question, I found one set of CBS/Motorola documentation that had three suggested SQ decoder circuits. The first one (L-1) used MC1312, MC1314, and MC1315 in a fairly plain implementation; L-2 added variable blend, with a J-FET between LB and RB, and L-3 was similar to L-2, but replaced the MC1312 with discrete components for the matrix decoder.
Anyone have experience with units that used any of these circuits? I'm thinking about building an L-3, maybe, if its performance seems worthwhile. Right now, I have nothing to decode SQ... except a Neural processor in my Pre/Pro. I tried this with a couple of SQ albums, and it sounded OK (pretty good, actually, on Caravanserai), but nothing like the original Quad mix off of the Six Wives of Henry the VIII DVD-A.
Cheers,
Paul
A bit of a quad noob here. While I have noticed that Full Logic SQ decoders seem a bit scarce/pricey, the Motorola chips for them seem pretty easy to find, for fairly reasonable money. Is there anyone that has done, or is doing, newer kits or products based on these?
Also, in a related question, I found one set of CBS/Motorola documentation that had three suggested SQ decoder circuits. The first one (L-1) used MC1312, MC1314, and MC1315 in a fairly plain implementation; L-2 added variable blend, with a J-FET between LB and RB, and L-3 was similar to L-2, but replaced the MC1312 with discrete components for the matrix decoder.
Anyone have experience with units that used any of these circuits? I'm thinking about building an L-3, maybe, if its performance seems worthwhile. Right now, I have nothing to decode SQ... except a Neural processor in my Pre/Pro. I tried this with a couple of SQ albums, and it sounded OK (pretty good, actually, on Caravanserai), but nothing like the original Quad mix off of the Six Wives of Henry the VIII DVD-A.
Cheers,
Paul