thx for the comments on the JVC PC-V2 guys

it's a real quality sounding boomer, but as with all boomers where the extra-bass speaker is hidden away in a dedicated enclosure, it runs out of puff a bit early & then sounds terrible.
However it does play pretty loud before that happens (better than my equivalent ASW 3D Hitachis).
The looks are a triumph for that era, just before all the silly rounded edges came in...