Stack Audio Opiniones 

Good product...good service, just wrong support bolts for speakers, in case I need them one day for my Focal speakers.... But I am not complaining...

My audio system has improved a lot.Better soundstage and depth,a blacker background and more silent.Much better bas control.The hights are more refined also.

My expectations were fully met.
Great improvement in sound quality.

I have bought some CSA feets. They work great under my power conditioner, switch ann streamer! Delivery within one week!

Surprisingly efficient products and first-class customer service. What more could you ask for?

Have the Stack eq under my tube amplifier and under my power conditioner. What a difference. More depth, more natural sounds, more open and more peace. Then I removed the set under the power conditioner and put it under my turntable. This was a real improvement. My records sound much better than my cds on my Teac cd player. Now saving for Stacks under my speakers.

On the internet I had read and I had seen YouTube reviews. So I began searching for the website. I ended up with a question, on which the website gave me no answer. So I contacted Stack Audio. Once I had someone talking to me (no robot) I knew what I wanted to buy. When I subscribed to Stack Audio I could become a fine deal of paying 10% less! So I ordered. It took quite some time before it was delivered, in the meanwhile I had gotten an e-mail saying sorry for the delay. Screwing the stuff under my speakers I could not screw it, ;) because it was easier than with the IsoAcoustic material I had before. After delivery I was asked via an e-mail if everything was okay. I could send back if I was not satisfied with the result of my buy. That possibility is fine and the aftersale attention is much appreciated as well.

Fast delivery. Great product, excellent noise reduction, made my td124 sound distinctively better, better transparancy and silence, more detail, just more music.

I have a problem with the unstable sound stage (not sure how it is exactly called in English), the stage (sound volume and width) appears and disappears from time to time. I found that it is caused by the router problem but right now I cannot change it to a new one.
I have a streamer naim NDS connected to the router through a switch Cisco catalist 2960.
When I connected the SmoothLAN network filter between the switch and NDS, I did not hear any audible difference. Then I connected it between the router and the switch, and this time the stable sound was established and the problem disappeared.
Thank you for good product and excellent service.

I've a Stack Audio Link IU, Link II, Soprano LP12 and now the Link product. Always delighted - wonderfully engineered products and wonderful customer service!!

This is my second order from Stack Audio and I am very satisfied with the service and the products itself.

I love what they’ve done for my system, and I look forward to finding a little heavier weighted unit for my amplifiers

well designed, it works the sound using it between my Lumin U1 and network switch has improved clarity and space, very nice improvment

Recently bought a SmoothLANfilter directly from Stack Audio for use between an English Electric network switch (which I bought a few months ago) and a Bluesound Node X streamer, streaming mainly from Quboz and Radio Paradise.
The item was delivered swiftly and their customer service contacted me a few weeks later to see how was getting on.
The SmoothLAN filter is working well with the EE switch, building on the benefits that came with the EE switch, by increasing the transparency of recordings and detail definition. There also seems to be more soundstage depth.

These footers bring a natural presentation to the sound of the system. The more I add the better the result.

Great service including one-to-one email interaction with knowledgeable sales manager

I have purchased multiple items and have had nothing but an excellent experience. I purchase with full confidence knowing the products work well and have no risk if I am not satisfied with anything.

Josh and the team came through at Stack Audio. This is my 6th set to complete my system with equipment and speakers. You have heard all the qualities of Auva such as soundstage , depth, bass and I will add one more that I may have missed on the various testimonials is a lower background noise level

After my extremely positive experience with AUVA 70 loudspeaker isolators (see my other review here for reference) I literally sugar coated my system with a set of four AUVA EQs (CSA 3) under my 46kg heavy Musical Fidelity M8xi integrated amp. They have replaced Isoacoustics Orea Bordeaux isolators. I can only confirm what others have already said: the upgrade is worth every penny. Both the stereo image and instruments separation have improved. In my system the acoustic guitars in particular finally sound live-like. The background is as black as you can only imagine. As a result, even some micro details of a recording can be heard but with no fatigue. Finally, from the aesthetics perspective, Auva EQs are visually less intrusive (being shorter/ smaller in size vs. Oreas and black which makes them disappear completely during late afternoon/ night listening sessions. Auva EQs have only proved that good isolation is a must not only under the ususal vibration sensitive suspects: turntables or CD players. Again highly recommended!