emotiva mono block amps any good?

I have Emotiva mono-blocks (XPA-1L) and a pre-amp (XSP-1). For the price, it has slightly exceeded my expectations. I listen to them in my home office where I stream music via spotify at 320 kbps. If I had a home theater system I would think that they would be fine. I would not, and do not, use them in my two channel vinyl system for critical listening, however. I did try them with my Vandersteen Treos with the San Francisco Symphony's 180g pressing of Gustav Mahler's 7th Symphony. Too me the sound was not accurate. Also when listening to rock, for example the Foo Fighter's Pretender, I found the bass speed to be a tad slow.

M-db: Thank you for directing me to the other thread. I am not an engineer and cannot comment on the internal build quality and associated materials. I did find the external build quality to be okay (not great). I don't share your view that this is because of the place of manufacturing, and I also gave up on ideology of place of manufacturing decades ago. For example my cheap Yamaha A/V receiver (purchased at Fryes) for my television was assembled in China and is superior in overall external build quality. Rather I look directly to Emotiva and their internal quality control procedures and product procurement/sourcing program for consciously producing this level of product quality. My overall assessment is that Emotiva is building an inexpensive component which produces sound quality just above the offerings at the big box retailers. For my $500 I got a 250W single channel amplifier. Others, including you, may disagree but I think it is great for listening to compressed digital music. It is not mid-fi (e.g., Krell) but it does fulfill a purpose.