I purchased my TT-400 Credenza almost 10 years ago and I’ve been happy ever since.  In those days, there were very few options for a unit such as the one I chose.  Diamond Case was the only one around.  Today, there are more choices.. but none with the quality, workmanship and value of Diamond Case.  My unit looks as good today as the day it arrived.  It’s all thanks to Steve and his dedication to his product and his customers.. even 10 years later.

We were so happy with Steve and diamond case my son ordered  a home theater system and had it installed today. Once again the install went perfect. The installers we neat and friendly. Steve followed up to show how everything worked. It sounds amazing including the outdoor speakers. We are thrilled once again with diamond case

All I can say is why did I wait this long to call Stephen and Ignacio. We agreed upon a date and time and they arrived on time just as committed. This review is during the Covid and they came with masks and worked in the living room area to run cables into our wall (hiding the mess from before) and they installed a mounting bracket to swivel a little side to side. Everything was done top notch including the clean up during the “wall work” – they even accommodated some not making too much noise during my wife’s conference calls as she is working from home. When completed, the kids almost felt like we got a brand new TV, everything was just as promised. Hoping to have him back to do a speaker system and maybe some LED lights for ambient viewing – who would have known. I do now and you should too!

Dave, Steve, and Fred Hartfelder at diamond case are absolutely wonderful! They have amazing customer service and they do a great job talking you through all of your options in your price range.

My husband and I were looking for a wall mounted tv/sound bar with an accompanying credenza for both our living room and master bedroom. We worked with Fred to pick out matching credenzas with good storage that matched the decor we were looking for.  And Dave recommended a great tv and sonos sound bar option. We absolutely love it. Will definitely use diamond case again for future projects!

We have had the good fortune to have the Hartfelder family of Diamond Case Home Theater, install systems in three different homes over the years and have never been disappointed with their work or hesitant in recommending them to friends. Dave did our first home and Steve the last two, with the most recent just completed. Their work is excellent, on-time, clean, state-of-art, and priced fairly. Steve provided many alternatives and knowledgeable suggestions about our recent system’s design, resulting in a remarkable viewing and listening experience. Additionally, he is always available to answer questions. The result has been friendly and reliable service, expert workmanship, at reasonable prices that reflect high value, which will provide our family viewing and listening enjoyment for years to come.

We have been customers of Steve & Diamond Case since their early beginnings in YORBA LINDA.
We have had several TV’s from them and different cabinets although the last one has been modified to fit the latest TV. He also has supplied Audio Receiver, DVD player to suite our system and programmed our remotes to fit our circumstances.
Recently he has supplied updates on our security cameras to make them more efficient, together with a better recorder.
Steve & Fred are most personable and always go out of there way to help someone whose technical knowledge has not improved with age and not necessary for profit

I stumbled on to Diamond Case while looking online for the “right” cabinet for out new TV/entertainment set up. We ended up building the whole system through Steve at Diamond Case. The cabinet is exactly what we wanted and exceeded our expectations. Steve was professional and helped us design a great set-up. He gave us plenty of options and often too much technical information on the different pieces of equipment. Highly recommend.

Fred Dave and Steve are so wonderful to work with nicest guys in town friendly affordable and efficient service. They have a beautiful showroom which really shows off their craftsmanship. They are more than willing to give demos and really love what they do. Top notch!

Steve worked with me and made excellent suggestions on the equipment I wanted but still keeping us within budget. He and Nacho showed up on time, were extremely professional and not only did the optimal set up for the equipment but spent the time to teach the family how to use everything. They were very efficient and did an excellent job making sure everything was spotless at the end! I can’t thank the Diamond Case team enough for my completely kick butt entertainment center! THANK YOU, STEVE AND NACHO!!!!

Steve and his team at Diamond Case did an exceptional job on our living room built-in! The quality of the built-in and their service were both top-notch. We highly recommend this company!

I’ve worked with Steve and his family at Diamond Case several times over the years. They have helped with multiple projects (furniture and electronics) at my home as well as my office. They are professional and efficient and a great company to work with if you want a quality product at a competitive price.

Contacted Steve about help I needed for a custom cabinet and he was very accommodating. Thank you so much!

Steve helped us design our home office. It turned out exactly how we imagined. This company did a wonderful job, they were very professional and helpful all the way during the process. Their work was clean, detail oriented, and efficient. We can highly recommend them.

Steve was so, so helpful and quick to answer every question I had and email I sent! He was very professional and showed us many, many pictures of styles similar to the design we wanted to make sure we would be happy with the way it looked. Outstanding customer service.

Steve (Owner) really helped us with choosing the system that would work best for our needs! His team was very accommodating, professional and amazing customer service that you don’t come across these days. I highly recommend Diamond Case. They are great to work with!!!