264 of 274 people found the following review helpful
You NEED to know - volume affected by other headphones!,
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This review is from: Belkin Rockstar Multi-Headphone Splitter (White) (Electronics)
You NEED to know - volume affected by other headphones!
This is a glaring omission from the product description.
>>> One person turns their headphones down, ALL other headphone volumes go UP!
>>> Unplug one headphone, the others go UP
>>> Turn up the volume of one of the headphones - others GO DOWN.
>>> Say you have your computer audio output split into headphones and a home stereo. Turn your headphones down, the home stereo goes UP - and vice versa.
Things get really complicated quick the more number of devices you plug in. This isn't the fault of the manufacturer, it is inherent in its passive design. BUT is should be stated clearly so you know before purchase.
I am imagining fights in the backseat of the car when someone turns their volume UP/DOWN to annoy everyone else!
Tracked by 5 customers
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Showing 1-9 of 9 posts in this discussion
Initial post: Dec 22, 2011 3:46:01 PM PST
What you describe is not a fault of the splitter but a characteristic of the audio source that does not have enough power to drive multiple outputs at the same time.
In reply to an earlier post on Sep 14, 2012 12:54:34 PM PDT
reluctant techie says:
I'm not blaming the splitter - they all do this unless they are powered or something. I'm blaming amazon for being so lazy and incompetent with their descriptions that you wouldn't know of this limitation unless you were an expert or had a similar unit prior.
8/8 people agree your comment adds to the discussion? Even if you have a TON of power going into the splitter you will notice a difference when you plug/unplug more headphones and/or adjust volume on the headphones. I agree it will be less of a difference but unless everyone has super sensitive low-ohm headphones and has their in-line volume levels set to near minimum, it will be annoying to some degree.
In reply to an earlier post on Sep 18, 2012 6:18:45 PM PDT
Amazon Customer says:
Each time you add a power draw, it cuts the impedance in half, right? With an amp or pre-amp between the source and the splitter, wouldn't adding more headphones INCREASE the volume because of this? Or does that only apply to speakers? Anyway - I appreciate the review and the heads up.
In reply to an earlier post on Nov 26, 2012 7:44:25 AM PST
Last edited by the author on Nov 26, 2012 7:54:22 AM PST
Chris L. says:
Your halved-impedance example only applies to the scenario of adding an additional identical load to a single load in parallel.
Whether removing a headphone increases or reduces the load depends on whether the loads are in series or parallel configuration.
Edit: Oops, forgot to mention current effects. These splitters are parallel circuits. Although adding a load will reduce overall impedance and increase current, the other loads will experience the current-reducing effect of having some of that current be diverted to the additional load. I'm pretty sure whether the net result will be to increase or decrease volume on each headphone depends on their relative impedances. Please correct me if this is wrong, I'm rusty with my circuits!
Posted on Aug 7, 2013 1:15:05 AM PDT
I am laughing so hard right now - I LOVE your comment about imagining fights in the backseat of the car!! I have six boys and - YES - they would turn their own volumes up or down just to annoy their brothers! You are right on the mark and you just made my day! Thank you!! :-)
Posted on Nov 14, 2013 11:04:12 AM PST
Jeff Slarve says:
That makes sense. If you need to be able to control the volume of each headset, then a headphone amp such as this Behringer HA400 4-Channel Stereo Headphone Amp might do you better.
Posted on Dec 9, 2013 7:51:56 PM PST
I noted that even with a single set of headphones plugged into the Rockstar, the volume was significantly decreased when compared to headphones plugged into the source.
Posted on Dec 19, 2013 12:58:13 PM PST
I was going to order one and this is just so informative and I cannot stop laughing!!!! Will keep looking for sure. I am electronically challenged and have always just pulled out one bud and said listen so I am jazzed to learn about splitters and hope to find a great one.
In reply to an earlier post on Dec 19, 2013 1:02:00 PM PST
Great reviews so informative and my head is spinning but certainly thinking and learning what I need - wifi/Bluetooth in wireless buds to one source and until then a powered one of these thingamajigs and no better place in the world then amazon!!!! Tried to post a comment on another site about an item they were selling on sale for $49.99 just wanted to say that I got mine at amazon for $7.98 months ago. I guess you cannot force people to save money - I will keep trying :)
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