Embedding of products Q(k) × B(τ) in absolute A-sets

Theorems about closed embeddings in absolute A-sets of the products Q(k) × B(τ), Q(k) ×N, and Q(k) × C are proved. These are generalizations to the nonseparable case of theorems of Saint-Raymond, van Mill, and van Engelen about closed embeddings in separable absolute Borel sets of the products Q × N and Q × C, where Q is the space of rational numbers, C is the Cantor perfect set, and N is the space of irrational numbers.