I picked it up from Good Will and it's the first time that I have actually used it even though I've had it for some time. This amp was intended to add a center channel and a passive sub to the receiver. It's not being used right now but it has been a surprisingly good bit of kit. I do have the matching receiver and I have to say it is dead silent though. This is not really one of Kenwood's better amps. I will try shorting inputs and see what happens but I already know it is the amp that has the problem as I am very familiar with the rest of the system and it's all good. I will start a build thread when I get around to putting it all together. I might need some assistance with that project when I start putting it all together. I have one of their 1500s PSU's and 4 of their 400A amp modules coming that I will be assembling once I get them into a chassis that I should also be receiving in a few days that I ordered here at the diyaudio shop. I'm waiting on my order from Icepower right now. These are not the final amps I will be using in the end only what I'm testing the speaker with in a test box. I have another stereo Sonance amp running right next to it and it runs completely silent. The amp is a stereo amp not a receiver and I'm using a Dayton Audio DSP for a cross over connected to my computer as a preamp/source. Either the active crossover is quite noisy or the amplifier has too much gain. If the hiss goes away then the problem is with the combination of the amplifier and the active crossover. Shorting the inputs means connecting the middle pin of an RCA/phono connector to the grip/outside of the connector. Time is unlikely to solve this problem, but as rayma says, short the inputs of the amplifier and see if the noise is still there. This noise will get amplified by the amplifiers gain and then sent to the speakers. The amplifier obviously provides gain and the active crossover will also have a certain level of noise. It isn't just the amplifier though it's whatever is before it too. The higher the sensitivity of the tweeter the more audible the intrinsic noise of the amplifier will be. In an active speaker system there is no passive attenuation applied to the tweeter so a low noise amplifier is even more critical. The standard SA853Q-9 has a 9-inch mounting depth, so the new SA853Q-6 accomplishes a comparable experience with less mounting space at just 5.4 inches.Amplifiers produce a certain amount of noise as part of their design and relates to the laws of physics and the gain structure of the amplifier. With the popularity and growth of the James Loudspeaker Small Aperture series solutions, the brand added a new shallow depth option in the Ultra-High Output SA853 style. Like most James Loudspeaker products, the model can be made marine-grade and can be finished in Satin Black, Gloss White, or completely bespoke color. The OW64Q brings a full range configuration to the mix to solve the need for low frequency when a separate sub is less appropriate for the space. The On Wall models gained a new OW64Q to the existing assortment of sizes and performance levels. The new SPL2 is expected to begin shipping in Q1. This led to their new, smaller form factor SPL2 SoundBar, which is 3 inches tall, a whole inch shorter than the previously petite SP元 Bar. Since the James Loudspeaker line is manufactured in its U.S.-based facility in Minden, Nev., the James Loudspeaker solutions are quick to develop and respond to input from the industry. The areas of the Sonance booth that were heavy on James Loudspeaker solutions also had new products to show, introducing new models in the SPL SoundBar series, On Wall series, and Ultra-High Output Small Aperture. The hardware will make it easy for integrators to leverage IPORT and dedicated tablets as reliable control interfaces during a time when native control hardware availability is unreliable. The Sonance family of brands also showcased a new piece for IPORT CONNECT PRO, the PoE+ Upgrade, which transforms any docked IPORT CONNECT PRO device to a hardwired network connection. The new models, named 8-50 and 16-50, boast power from a full-width 1U housing with the familiar assortment of DIP switches, Auto Sensing, and bridging ability. Sonance has introduced two new digital amplifiers, revealing an 8-channel and a 16-channel solution, each with a new faceplate featuring an illuminated “Sonance Beam,” a play on the brand’s logo. The Sonance booth at CEDIA Expo 2022 revealed several new products from the manufacturer.
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