jafreeman My amps were designed and rebuilt by Grover Huffman of GroverHuffman.com cable manufacturer. These were extensively rebuilt with few remaining parts/connectors.
If you have read the forum posts by Oregonpapa (Frank), you would see that for a few hundred dollars, he took a Pioneer DV-05 1998 DVD player with dual lasers, installed six superior capacitors, with a high end A/C cable and voila! trounced his $10K Audio Research CD player which was broken and required a $2K repair.
Also, Grover's Dynaco ST70 remodel changes the tap for power from the transformers (voltage regulated instead of ultralinear), installs typical mods like solid state rectification (kept the tube for warm up purposes) installed new huge storage capacitor and the same thing, a very superior, high current tube amp that drives bass down to the 20s and with tremendous punch and resolution, more open and extended highs. It's a smaller version of the Altec amps but not as highly resolving or powerful. It can drive Frank's Signature IIIs superbly as it does mine at my home. Again, about a $400-$500 retrofit including new IC connections and speaker terminals, IEC A/C connector.
If you have read the forum posts by Oregonpapa (Frank), you would see that for a few hundred dollars, he took a Pioneer DV-05 1998 DVD player with dual lasers, installed six superior capacitors, with a high end A/C cable and voila! trounced his $10K Audio Research CD player which was broken and required a $2K repair.
Also, Grover's Dynaco ST70 remodel changes the tap for power from the transformers (voltage regulated instead of ultralinear), installs typical mods like solid state rectification (kept the tube for warm up purposes) installed new huge storage capacitor and the same thing, a very superior, high current tube amp that drives bass down to the 20s and with tremendous punch and resolution, more open and extended highs. It's a smaller version of the Altec amps but not as highly resolving or powerful. It can drive Frank's Signature IIIs superbly as it does mine at my home. Again, about a $400-$500 retrofit including new IC connections and speaker terminals, IEC A/C connector.