Above, the Dynaco line-up circa 1974: A10, A-25, A-35, and A-50 speaker systems; Stereo 120, Stereo 50, and Stereo 400 amps, PAT-4 Preamp, FM-5 and AF-6 tuners, SCA-80Q integrated amp. Dynaco components were offered pre-assembled (and badged as Dynaco), and in kit form (badged Dynakit). The speakers, AFAIK, were all pre- assembled. Dynaco had an earlier line of tube components that are more sought-after, but you can find plenty of all types out there… the speakers are not as common but apparently not-too-bad.
