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Load image into Gallery viewer, Rolls Accordion Accessory (Ha43 Pro)
  • Load image into Gallery viewer, Rolls Accordion Accessory (Ha43 Pro)
Vendor
rolls

Rolls Accordion Accessory (Ha43 Pro)

3.6
Regular price
€125,00
Sale price
€125,00
Regular price
€206,00
Sold out
Unit price
per 
Save 39% (€81,00)
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  • 14 Days Returns

Description

  • 4 channel
  • headphone
  • amplifier

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Customer Reviews

Great Value and Tone. -I bought this because I needed to be able to run multiple headphones with the same stereo mix in my small home studio. The Rolls does this very well. I like the topside faders, and I specifically chose this unit because of the outputs, which are located in the front of the unit rather than in the back as they are on the (slightly less expensive) Behringer or Pyle Pro units. This allows for easy use of headphones whose jacks are not set at 90 degrees to the cable.-The inputs allow for either 1/4" TRS or L/R RCA (which I'm using) and the unit sounds great- large amounts of volume on tap, and very clean tone that is quiet as long as you aren't plugged into a source with gnarly power issues (use a power conditioner for best results with all studio electronics!). I use this connected to the 'monitor out' from my Behringer UCA202, so I can use one ADC/DAC unit to convert and monitor.-It's also built very solidly, with a heavy-duty chasse and faders that feel sturdy.-My only complaint is the same as with most desktop studio gear: no power switch!!! I would love to have the option to turn this little guy off when not in use, but in order to do that I have to unplug the power source (not a huge deal, but for those of us with lots of gear and wires, playing hide and seek in the back of a rack every time you want to use headphones is no fun.) I would pay a bit more for this product if it had a power switch, and while it doesn't effect functionality, it sure would be nice.-For some reason the unit pictured is not the PRO model. Amazon should change that. The pro model has both 1/8 and 1/4" output jack on the front, which is great.Overall, I am happy with this choice, and while there are certainly more expensive units out there, the functionality and durability of this Headphone amp are great for the money. 5Mix of Heavy-Duty and Light-Duty Components. Flexible Input/Output Configuration. (1) When I unpacked this unit, the most prominent feature I first noted was the heavy-gauge metal case. Unusual in consumer-grade electronics these days, more typical of test equipment. The case comprises a base and a cover, held together by 4 screws, to allow for assembly/disassembly.(2) All components are mounted on a single circuit board. The board is floating, not anchored to the case: the board is secured by the connectors protruding through mating holes in the case. The tolerances are such that the board is firmly captured: it doesn't jiggle freely if you move the case, but it does move slightly when you insert a cable into a connector.(3) The above design also means that the connectors are not anchored to the case: the connectors are soldered directly to the circuit board; when you insert a cable into a connector, some insertion force is transferred to the solder joints. But at least in this board, the insertion force is parallel to the board. In other boards I've seen, the insertion force is normal to the board: if you push a cable too hard, you run a greater risk of breaking a solder joint.(4) On the rear of the case, there are 4 connectors: one DC power input jack (DC power supply included), dual RCA input jacks (left and right channel), and one 1/4" stereo headphone input jack. According to the enclosed schematic, the dual RCA input jacks and the headphone input jack are wired in parallel. Choose the appropriate input for your source.(5) This unit has 4 independently controlled outputs. The output jacks are mounted on the front of the case: each channel has dual outputs, a 1/4" stereo headphone output jack wired in parallel with a 1/8" stereo headphone output jack. The design is intended to give you a choice of outputs, without requiring an adapter. But both outputs can be used simultaneously: there is enough power to drive two headphones. So even though this unit is designed as a 4-channel unit, it can actually drive 8 headphones (if your headphones have an in-line volume control, then the volume of all 8 can be independently controlled; otherwise, you can independently control the volume of 4 sets of 2 headphones).(6) The volume controls are located on top of the case. Each volume control is a slider, with a small fingertip lever protruding through a slot in the top of the case. The range is marked 0 - 10, but the slider actually travels from ~1 to ~9. The full travel range is only 20 mm (0.8 in). That's the major neg. This unit attenuates as well as amplifies. There is a detent at mid-travel that indicates unity gain (I believe). With this short a travel, it's difficult to adjust the volume precisely, especially at the low end. For reference, with my setup, 2 is too soft, and 3 is too loud; so my control is effected over only ~3 mm of travel.(7) Out of the box, 3 of the sliders operated smoothly. The 4th was too stiff, but loosened up after I slid it back and forth ~20 times. I don't notice any noise while adjusting the volume.(8) According to the schematic, each output is driven by a pair of matched op amps, one for the right channel and one for the left channel. The volume control itself is not of robust construction: it is a printed-circuit potentiometer with a pair of matched traces. A plastic lever moves the two mating sliders in unison.(9) There is a green "Power On" LED on the top of the case. There is no on/off power switch. That's a minor neg.(10) Note: This was not the correct piece of equipment for my application, but the most cost-effective. This is a 4-channel headphone distribution unit. Since 1 input channel is being split into 4 output channels, amplification is needed. I have a CD player with a headphone output with no volume control, and a headphone with no in-line volume control. The raw signal is way too loud, so I actually just need a single-channel volume attenuator. Most attenuators I've found are fairly chintzy. Rolls makes a single-channel, passive headphone volume attenuator (HV6) that would be perfect for me. But it costs a whopping ~$70. For this unit (HA43 Pro), I get 4 active channels for ~$45. In this unit, even if the slider controls should not prove to be robust, I have 3 redundant channels, since I'm using only a single headphone.(11) My suggestions for Rolls for this unit: (1) Double the length of the sliders and (2) Add a power on/off switch. If you need to offset the extra costs, I would think that you do not need dual outputs for each channel: A single 1/4" jack would suffice; the user can always insert a 1/4" to 1/8" adapter if needed. 4Nice little headphone amp. This was bought to give some hardware control over PC audio, partially out of preference, but also for better clarity of sound. This thing is based on 4557 Opamps, which is not precisely Hi-fi (these are used in many popular guitar distortion pedals), but it isn't Low-fi, either. They are fairly transparent sounding in all, and the sliders are noise free when new. The amps inside are quite capable of driving two pairs of headphones per channel, as I have driven a set of Audio Technica ATH-M40fs and Yamaha CM500 headphones together without an issue, and no noticeable change in sound (although I am not the foremost in audiophiles). Additionally I am using it as a signal splitter between two power amplifiers for a 2.1 system, where it also works quite well. Overall I'm rather happy with this.The "wall wart" included outputs 15 VDC at 300ma. The box itself claims 12VDC operation, although 15 will not hurt it in any way, as the opamps inside are capable of handling up to 18 VDC. The higher the voltage, generally the better the clarity, so I can see 12V as a lower minimum for clean operation. Unfortunately it loses one star for lacking an on/off switch. I simply have the power supply switched, but that can cause a fairly loud "pop" in the headphones when powering on, with a slight click when powering off. This happens regardless of power supply used (I also tried a 12VDC 1a wart).The board itself floats slightly inside the enclosure, held in place by the jacks. The jacks themselves do not screw in (possibly a detriment), but there is no risk of shorting the circuitry on the chassis. The soldering of the actual board itself is quite good, and looks to be 60/40 solder, instead of the lead free ROHS compliant type. Jacks for input are RCA and 1/4" TRS (Tip, Ring, Sleeve). Output jacks are 1/4" and 1/8" (6mm and 3mm respectively).The documentation is simple, but effective, and I certainly like that a schematic of the circuit was included by the manufacturer, as that aids in repairs, should this piece break down over time. I honestly doubt it will break down any time soon. 4Great little amp for music lovers.. ok well the price should already tell u that this is not an amp or professional and high end stuff. this is good for people that need an amp and doesnt want to break the bank. this amp works with 3.5mm jack and the 6.3 mm jack. it has 4 volume contorl for 4 headphones or speaker... this can be use like a headphone spiliter for computer cause u can plug ur speaker and headphones in to this and control all at once. this amp sound pretty good, the bass was more deeper and the treble was clear so was the highs. the amp is a metal design. the input use RCA or 6.3mm jack cable( not sure what those are call),...the one downside is that this amp as no power off button so if u want to turn it off u hv to unplug the cable. overall great amp for 40 bucks arrive real fast. if u dont want to break the bank and use a great amp.. buy this and its worth every coin 5Inexpensive and easy to use I ordered the Rolls HA43 (Pro) from Amazon as product number B0010BWLMS. Even though the product title claims that it's only an "HA43", it goes on to list the features of the Pro version. Strangely, the listing for the Pro version lists the features of the non-Pro version. ???Regardless, what I got was the Pro version. I use it downstream of my dbx DDP (old but still working fine) to allow me to use my speakers, wired headphones or wireless headphones. I found that unity gain (output volume level is the same as the input volume level) occurs with the slider set to "5". There's even a detent at "5" that makes it easy to set the output level at unity gain without looking. Since I use the sliders to disable specific outputs (by moving the slider all the way down), it's quite helpful to have that detent available.This is a very straightforward product that does exactly what it claims to do. And yes, if you move the slider for an output all the way up to "10", it gets very loud. Be sure to move the slider all the way down before you hook up any new speakers or headphones, or you'll get an earful...In case this helps anyone, there are 2 inputs on this amplifier: a pair of RCA jacks and a 1/4" stereo jack. The outputs for each channel are on the front and include both 1/4" stereo and 1/8" stereo jacks. I wish the output jacks were on the back, but I suppose it would have made the amp a lot larger. I'm satisfied with the cords connected to the front of the amp, though. 5Watch TV Again and Understand It! Amazing! Understand TV shows without reading lips! Great for four or fewer old farts. No more missed dialog on Masterpiece Theatre. Four of us can watch, each with his own earphones and each with her own volume control. Defeat the Hollywood audio mixing idiots who like to foley all the background car traffic, dog barks, and everything else in the world behind the dialog on a TV program. Fire the foleys. We want to understand what the actors are saying. This little amp solves all of that. No more turning up our hearing aids to no avail. This little device saves the day. And you don't need expensive earphones either. The little ones I swiped from a United Airlines flight work great!! 4Easy to use, Very Useful I am fortunate to have a home that has a built in theater. Unfortunately, the five seater space is located directly beneath my 15month old's nursery not a clever design. Because of this, we have been struggling for a while to find time to use it, after all when the kiddo is awake he does not want to sit in the theater, he wants to run, and when he is asleep, we can't have loud theater base going. What a waste of a great space!I wanted to find a headphone solution, but something that won't detract from the theater experience. After careful deliberation and review of our budget and available products we decided to buy the Sennheiser HD 598 Headphones but needed a headphone amplifier to power them and to allow easy volume adjustment for each headset. The Rolls HA43 Pro is easy to setup (I do not any experience with this kind of thing) and solved our problems.The device is not obtrusive so my wife doesn't think I've made the place too difficult to use, and the sound quality and strength we are able to generate is beautiful. She often complains about headphone volumes because she and I have different desires on volume but with this we can accommodate our differing tastes as well.I would highly recommend this product for non-audiophiles (because thats who I am) for an easy to use and setup product to allow multiple headphones to share the same audio source without volume problems, or loss of sound quality. I have a feeling the product is equally capable for audiophiles but since thats a skill set I don't have I am not qualified to judge for them.Good luck, and thank you Rolls. 5Great Headphone Amplifier. Solidly Built. This headphone amplifier has been abused by DJ's for the past 6 years. It held up well. But when the pots got a little noisy and the sockets didn't hold as tight, it's time to be replaced. Why not replace it with the same model. So I did. The DJ's are happy again. And once I clean the pots and replace a socket, I've got a backup.I love this little amp. It's rugged. It sounds great. It's loud, maybe a little too loud. And it can handle both 1/4 inch and 1/8 inch headphone plugs. What's not to love? 5Top Shelf This box is loud, and it is clear being distortion free. The sound is kind of like my old Sansui tube amp reciever from years long ago-dry and crisp. This box is also extremely well made, and quality seems to be of value of a much more expensive amp. This box will push any phone out there, and even if your phones do not need being amped, this box will make the sound that much more crisp upon impact of audio. Sounds great through my AudioTechnica M50's or my brothers built like a tank Shure 440's studio monitor phones. I think it is the best product out there in the price range unless you wish to go with a 200-300 dollar tube set up, but this does come mighty close for my bro does own a tube headphone amp. I have compared both. This is mighty close, again, think old time Sansuei tube reciever amps-dry-crisp-loud if you wish it to be. Go for it and you will not regret it-quality is truly that good! 5Beautifully Simple, Solid Little Amplifier! In brief, I can't afford "real" A/V gear just now, and don't want cheap garbage in my living room. Our television has reasonable sound quality, but my partner has some hearing loss, and tends to crank the volume to uncomfortable levels. He was okay with running lightweight headphones through my old stereo receiver, with some treble boost. But when the faithful dinosaur finally died, we were stuck. Although our cable box provides a clean line-out audio signal, it won't drive even those nasty little earbud things, and who can wear them long enough to watch a movie or the like? My only thought was to try a headphone amplifier, but I got discouraged looking for a good one in the under-$100 price range - there's a lot of junk out there, folks, if you haven't noticed.At length, I took a chance on the Rolls HA43 Pro Headphone Amplifier, as the Amazon description and customer reviews indicated it might be what I was looking for. To my delight, it's virtually perfect! This is not the cheapest amp you can find, obviously, but it delivers a good amount of boost with, as far as my ears can tell, no discernible distortion. I was afraid we would also need an equalizer - more money I was not eager to spend now - but the amp's output is so clear that my guy can understand even the murkiest dialogue. The unit is very solid and well-made, very easy to use, and has enough flexibility for future creative uses once it's no longer needed for TV viewing - and with reasonable care, I can expect it to live that long. An especially nice feature is having 1/4 inch output jacks available, as well as the now-ubiquitous 1/8 inch jacks for headphones. (Personally, I've always felt that 1/8 inch mini plugs were deliberately engineered to fail ASAP, but never mind.) Even if you don't need four outputs, this would be my first choice for a low-power amplifier for any application, period. 5
Rolls Accordion Accessory (Ha43 Pro)

Rolls Accordion Accessory (Ha43 Pro)

3.6
Error You can't add more than 500 quantity.
Regular price
€125,00
Sale price
€125,00
Regular price
€206,00
Sold out
Unit price
per 
Save 39% (€81,00)