Yes, VERY early AVA amplifier built into a Dyna St-150 chassis, about 75 watts per channel, late 1970s or early 1980's vintage
Musically smooth and non-offensive but lacking the transparency and dynamics of current AVA models.
Condition and remaining useful service life? Depends on how hard and long it really has been used. AVA amp designs have always been durable and fault tolerant but who knows its past history.
If I had one here in excellent condition it would sell for $345 with a one year AVA factory parts and labor warranty.
Regards,
Frank Van Alstine