Designed for high end RCA audio distribution the Rolls DA134 is a four-channel distribution amplifier. RCA and 1/8″ inputs that can be switched from mono or stereo. The DA134 will distribute a mono signal to eight outputs, or a stereo signal to four stereo outputs. The outputs are designed to drive line level signals. The DA134 is the perfect distribution amp anywhere high quality sound distribution is required.
Art Book Fanatic –
Look no further!I have a somewhat unusual sound system made up of powered studio monitors instead of conventional speakers which I prefer due to their flat sound. I was having trouble building my sound system because in general studio monitors are designed to be used with a mixer or audio interface and they dont have the same bare wire connections used to hook up conventional speakers to most stereo receivers. I tried a few different headphone amplifiers but even the highest powered one I could find could not come close to providing enough power to deliver the signal to all nine of my units, one of which is a subwoofer connected to one of my speakers. This unit completely solved that problem. In my opinion it is possibly the best unit for this purpose available. The quality of this unit is top of the line. It has individual volume controls which are a must for using speakers of different brands because the volume of each brand is different at each level. This unit has four RCA stereo outputs and three inputs. It has a 1/8″ port for basic phone connection, an RCA input and best of all an RCA stereo pass through input. The stereo pass through allows for exact reproduction of the stereo source and in the case of my setup actually eliminated the annoying hiss which is so common to powered studio monitors. I would add however that if you are looking for the same results it would be best to use a single outlet in order to avoid any ground loops and for that it would be best to use a power strip. By the way the sound is beyond belief! If you are looking for this kind of unit and you don’t require video distribution then look no further.
Handy little ampSolid construction, legible, logical, readable instructions
Michael A. Bussey –
Do not load multiple stereo analog RCA inputs devices, to one stereo analog RCA outputs.I am starting a vinyl LP collection, this device is perfect to take my two channel stereo turntable analog outputs and feed my multiple RCA analog inputs on my 5:1 and 7:1 Amplifiers, (both Amps set to stereo mode) with no digital compression, my stereo sounds great. note great for digital-to-analog devices, with stereo analog RCA outputs, set to 24 bit, 96000 Hz, or 24 bit, 192000 Hz.
Amazon Customer –
Five StarsWorks great, as described… and i love the channel knobs
love it so farI am testing the DA134 while recording video depositions. Before building it into a field kit, I wanted to make sure the audio quality was good in a situation where my entire kit didn’t depend on it.I had originally used a simple Y-cable splitter to peel off the audio I send to my camera and send it down the table to the court reporter. However, I quickly found that unexpectedly heavy loads like mic inputs on laptops and headphones in parallel with my audio would cause my audio level to drop severely. So I slipped the DA134 in between to provide a buffered output to the reporter. Now my camera audio is the same every time, thanks to the constant input impedance of the DA134, regardless of what the reporter uses her feed for. Plus I have a volume control to make it easier to adapt the line feed to what she needs. Sound is good too, with no extra hiss added. Now that I know the sound quality is fine, I plan to use the DA134 in my next equipment kit to distribute the mixer’s output to all devices, which will allow fine-tuning of each device’s audio levels via the output pots on the DA134.This is the only distribution amp I’ve found with volume knobs for each output, and that’s nice to have. And with it coming from Rolls, I trust the output will be clean and good quality, without any strange channel imbalances you might get with a $20 amp from some random Chinese manufacturer you’ve never heard of.On the other hand, those volume knobs are pretty sensitive. In my head before using it, I pictured them being much less sensitive (adding a mere 12dB of gain). I guess I thought the far left of the rotation would be -12dB to match the max gain and it was just a way to slightly adjust the level but still have audio output. In reality, they will cut all the way to no audio. Looking at it that way, they have an even bigger swing than a normal none-to-max volume knob (by 12dB), but the same amount of rotation to accomplish it in. Thus, the response curve on these pots are even more sensitive than a normal volume control. I think you have to be careful when deviating away from center to boost or cut, because you’re likely to add/cut more than you mean to with a blind diddle of the knob.The power plug fits snugly into the DC port, and has no wobble that I could detect, so the power connection is very solid and reliable. (Unlike the MX124 which wobbles and disconnects temporarily causing a nasty 1/2 second blast of buzz at full volume.)Note that as with all Rolls equipment, polarity of the plug is backwards from the defacto standard in the USA. Ie, the + is on the outside of the barrel, and the – is the inner connection. Don’t accidentally plug their wall wart into another device, or that device might let out the magic smoke genie.