Rolls DA134 4-Channel Distribution Amplifier
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R is the total number of channels. L have a fain control in common. R, on the other hand, The letters L and L are distinct. One or the other should be used for mono. I've found this little box to be very useful, and it makes no additional noise. BUT - RCA connectors are the only ones available. It would be nice if it had a quarter-inch thickness.
Yes, it'll work with a standard 220V AC outlet. There is no need for a second adopter. The standard utility power supply in this country is 220V AC, which I have directly connected to the wall power socket. Not a problem at all!
Yes. When you turn the channel knob all the way counterclockwise, there will be almost no output from that channel.
It is possible to connect two audio sources. One is connected to the RCA input, while the other is connected to the 1/8th digital input. However, neither source can be used at the same time. It's a good idea to turn off the power to the idle source to avoid humming.
Selected User Reviews For Rolls DA134 4-Channel Distribution Amplifier
There are speakers in every room of my house. I recently purchased this unit to address the issue of how to distribute the signal from my receiver to all of the other powered speakers and receivers- a few in their fifties As a result of the long cable runs, the line-level signal is reduced. br>Previously, I attempted to use an unpowered splitter box, but the results were unsatisfactory. br>The problems that the Rolls unit solved are as follows:
1. Increasing the voltage at the next amp's input by boosting the line-level signal;
2. Signal strength should be increased in order to improve signal-to-noise ratio. compensating for the long cable run with a low noise ratio;
3. separating the output channels so they wouldn't interfere with one another; or, to put it another way, 4. Allowing the user to adjust individual output levels to compensate for varying downstream input sensitivities. br>I also purchased some good-quality headphones. quality but at a reasonable price priced cables (Monoprice 102868, also available on Amazon) with gold-plated connectors RCA plugs that were tipped, which also helped to reduce hum in this setup. If your device downstream requires a 3. You'll need a female RCA-type connector if you're using a 5 mm stereo plug. 3. a man The converter cable is 5mm in diameter. I'd tried three-minute runs. I used to use a 5mm cable, but the sound quality was poor. Separation of channels and signal-to-noise ratio are both improved. With the stereo RCA cables, the noise ratio is, in my opinion, optimal.
BTW - This product is made in the United States of America. When was the last time you purchased an electronic device that met this criteria? They also include a circuit diagram for the product, which I found fascinating. I'll never go inside, but seeing the technology they use was fascinating. Basically, a bunch of op amps. br>Tip 1: If you're looking for a unique way to express yourself, try using the following I used to have a lot of hum that I thought was caused by ground loops. My home's downstream amplifiers were connected to separate electrical circuits. I was able to obtain a few hundred feet of 18-inch cable. gauge wire, and ran a separate ground from each device's chassis ground (including a case screw on the Rolls) back to my receiver's ground: The hum was completely eradicated! Now it has a very clean sound. br>Tip 2: If you're looking for a unique way to express yourself, try using the following This isn't rocket science, but if you don't understand much of what I've said thus far, this isn't the product for you. The manufacturer assumes (and explicitly states in their literature) that they will be unable to assist you with your issue. You must know what you're doing in order to solve your setup. br>Tip 2a: If you're looking for a unique way to express yourself, try using the words " This is a Line Level Amp, not a Power Amp, so your speakers will not be powered. It generates enough power to drive the input of your powered speakers or a receiver with a built-in preamp. Finally, it appears that the build quality is excellent. The case is made of heavy metal, and the assembly is neat. The gain controls are also smooth.
I needed a way to distribute output from a Sonos Connect (the new model is called the "Port") to four audio amplifiers (old Kenwood and Pioneer amps). I had previously attempted this with a CE Labs AV700, but when power was switched on, I heard a sharp crackle/pop in all connected speakers and a powered subwoofer, so that unit was returned. br>After that, I came across this item, the Rolls DA134. I was anticipating a low-cost, low-quality component, but this is far superior! It has a metal cabinet, nice components, and excellent craftsmanship. I have this unit on, along with the bank of audio amps, for my application, and I have not detected any additional noise in the signal path. The sound that comes from the in- The ceiling speakers have improved due to the stronger signal entering the amps versus a passive patch cable splitter approach that was previously in place (2 Sonos Connects, output split to go to 2 amps each)br>The included power supply works without issue, and the tip (-) has been noted by others. The DC end of the power supply's sleeve () and sleeve () are reversed from standard practice. For this type of application, this is a highly recommended purchase.
This product is used to send audio from a Mac Mini running iTunes to a local and remote amplifier. br>br>In my living room, I have a Mac Mini that is solely used to run iTunes. Obviously, we want to listen to this music through the living room's local amplifier. In addition, we have a Control4 amplifier that distributes audio throughout the rest of our home. We were able to distribute audio from the Mac Mini headphone jack to the locations we needed thanks to this fantastic product. br>br>It's a nice run. That's fantastic! Unfortunately, when the headphone jack is used, the evil people in Hollywood FORCE Apple to turn off the audio on the HDMI connector. This product successfully solves our "Hollywood problem. " br>br>Made in China's communist regime. br>br>Contrary to popular belief, there is no documentation included with the product, and there is no on/off switch.
It's perfect for enabling four base shakers, each with its own amp for movie theater seats. 1 bass channel from a 7-channel mixer should be connected. Here's a receiver with two channels for your home theater. You're ready to go once you've connected the other bass/LFE channel to your powered subwoofer. All five amplifiers receive a nice, clean signal.
It was exactly what I was looking for. So far, everything has gone well. It was exactly what I was looking for. I needed to send line-level audio to a number of different zones. That is exactly what this does. I can boost for longer runs; my longest cat6 cable run is 150 feet. This is the most extreme case, and while audio quality suffers slightly, it is barely audible for background ambient listening. There were no alternatives that did what this does that I could find. Construction is entirely made of metal. If anything new comes up, I'll update this.
This is a fantastic small distribution amplifier. It's what I use to re-distribute my sub-categories. woofer pre-amplifier out, feeding a Buttkicker amp and a pair of Velodyne subs br>The only drawback is that the included 15V power supply is extremely noisy and leaks 60Hz. br>I replaced the Power Supply with a good one, and now I'm in audio heaven. br>br>Be aware that 15VDC, 500mA, and a POSITIVE sleeve are required. The polarity is out of the ordinary.
It performs admirably and provides me with. What I was looking for. I run audio to a camera, an MP3 recorder, and down the table to a court reporter, and it works perfectly with adjustable volume on electrically isolated outputs. Connecting to a low-impedance load, such as a laptop mic input (with a built-in attenuator) The volume of other ports is not dragged down when connected to a phone line (of course) or directly to a pair of headphones. br>br>However, keep in mind that the polarity on most Rolls equipment is backwards - The center pin of the barrel connector is grounded, and the shield is (). Make sure you don't mix up the adapter with one from another piece of gear!.
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