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Your incredibly professional approach to analyzing speaker specifications has provided a sharp source of inspiration for those who appreciate absolute precision in music!

The Gradient Helsinki 1.5 impressed me with its open design—the sound flows from all sides, the instruments float freely, without any boxy resonances, perfect for large rooms. During the pandemic, while I was stuck at home for hours in front of the system, I wanted a tactile hobby and started collecting large-scale machines. To avoid counterfeits, I stumbled upon fairfield collectibles . Complaining about delivery saved me a lot of stress. Music for the ears, models for the hands—a perfect balance.

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Very pleased with this speaker setup for welders

Haven't noticed any issues or concerns as of yet

They made a suitable speakers for everyone.

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Once properly placed, they seem close to perfection for me. Dipole bass avoids much of the room mode issies which most of the box designs have, so bass is more articulated, never boomy, and it can be adjusted by placement (it changes with the toe-in angle, as it is not omnidirecrional bass but dipole). Tweeter and midrange arrangement minimalises first floor reflections, that cleans up the sound noticeably; their cardioid dispersion allows for placement near to the back wall. In a word, Gradient’s ideas work, in real-life rooms they sound very well, with only few and manageable compromises. I personally like their design. They are not small, yet they are not voluminous, either. They do not try to hide and disappear, with this design they could not (and should not, if you ask me). They work very well with Parasound HCA 2200 ii and Mark Levinson 27.

The bass is not as loud as you may expect from a 12” driver [if it were in a closed or bassreflex box], nor are they suitable for so large rooms as box designs with the same driver size. In that sense, the driver size may be misleading. Their positioning in a room is a process of trial and error, it requires some patience, but if you read and follow the manufacturer’s instructions (which are concise), it is doable. Sweet spot is relatively pronounced (only if compared to omnidirectional speakers). Design is modern and draws attention, they may clash with other styles. I tried them with 300B SET, sensitivity is too low for that, I suggest 100W per channel.