OK I think there is no point in looking at thunderbolt 3 @ 40 Gb/s (giga-bits-per-second) which is X2 of what thunderbolt 2 can do. The Quantum series wouldn't be as fast as they are if we didn't get rid of hardware mixing. That adds to the latency and is a big reason why products like UAD Apollo's are not as fast latency wise. Seems to be reasonably well constructed and quite small for the amount of I/O compared to my last interface, the focusrite pro 40, it's quite small which is great for mobile recording. If I had to be critical I would have liked my power button on the front. Only a single Thunderbolt port is present here too, making it far more challenging to take advantage of device daisy-chaining, particularly if you have a notebook with only one or two Thunderbolt-compatible ports. Following the lead of other makers, there’s no computer connection cable included in the box. Sure, some users might need additional adapters to use with legacy ports but the vast majority would use a Thunderbolt-compatible USB-C

I would never have been able to set the buffer that low in a session of that size on a USB 2.0 interface. The result would be compromised audio and error messages saying I’d used up all the CPU power. I would have had to set the buffer so high that latency would be an issue. The front panel includes eight XLR/TRS mic/line inputs, where two have Hi-Z inputs, with corresponding gain controls and two-tone LED metering.The Quantum has Thunderbolt 2 ( 20 Gbps), and the 2626 has Thunderbolt 3 ( 40 Gbps). Is the 2626 actually utilizing the doubled bandwidth, or does it have the same performance as the Quantum? You seem quite upset over some assumptions. In the future, try engaging in a tone that doesn't appear to be trolling, especially when you don't have correct info. Hardware level Matrix monitoring/Mixing is not the same thing you're talking about at all. swampthing wroteThank you both, I'll try what you said tomorrow. However I still don't understand how I've never had any of these problems before... PC/Windows: ( Studio One> Configure Audio Device… > select Quantum from Audio Device drop-down box) The first two inputs are designed for mic or instrument, while the remaining Inputs (3-8) interchange between mic and line. This depends on the kind of connector that is used. Next to these are preamp gain controls and simple multicolored LED metering to signify the activity and clipping on each channel.

ADAT Optical/Dual SMUX inputs/outputs: 16x16 channels at 44.1 or 48 kHz; 8x8 channels at 88.2 or 96 kHz Each channel also has its own front-panel Gain knob accompanied by an LED that lights up green, yellow or red, depending on the input level. Fancy metering it isn’t, but it’s sufficient. For more detailed input metering, you can open the included Universal Control software, which provides ladder-style meters for each input and output channel. The newest addition to the Quantum range offers a plethora of I/O and excellent latency performance for a very reasonable price. According to PreSonus, the unit has the “lowest round-trip latency of any audio interface available.” They say it can be under 1ms round-trip, depending on your setup. That seems right in the ballpark based on the performance I was getting. I don’t have the statistics available to compare it to other Thunderbolt 3 interfaces, but I can say unequivocally that it’s the fastest interface I’ve ever used. MIDI was enabled in UC but a restart was required for it to appear in the macOS AudioMIDI setup utility.I have some questions about specific differences between the units, that go beyond the obvious feature differences. In terms of features, both models have the things I actually need, thus making it a tougher decision. Given the Quantum’s launch price, you could be forgiven for comparing it with the Studio 192 and asking why we are, in a sense, paying more for less. After all the 192 has almost the same complement of I/O as well as a sophisticated digital mixer! Both are 24-bit/192kHz devices. However, this disparity in price between Thunderbolt and USB interfaces with similar features is hardly unique to PreSonus, and no doubt reflects the additional cost of developing drivers and chipsets for a new protocol. To my mind, the Quantum’s remarkable low-latency performance and vastly improved user experience are more than worth the extra cost, and of course there’s the improved audio specs to factor in as well. Windows automatic handling of spreading threads over cores works pretty well. If to do own handling I think ability to turn that off if not working for everybody and all synths would be good. Maybe there is a parameter in preferences file somewhere to do that. This means I adjust the volume knob, for adjusting the listening level of iTunes, very often, and want it to be a comfortable experience. I see that the Quantum 2626 has a mid-sized control knob that looks kind of crowded in with some other knobs, whereas the original Quantum has a huge control room knob that’s not crowded in with other stuff.

Uninstall universal control and remove the quantum as an allowed device in your thunderbolt settings.Not only does the Quantum 2626 come with a copy of Studio One Artist, but also an exceptionally generous third-party software bundle called the Studio Magic Suite. In addition to using the interface to record and mix, I will also be using the interface to listen to music, while working and typing at the same desk for long stretches of time.