Altec Lansing IM4 Portable Audio System
- Portable battery-operated stereo system shares the sounds
- A highly efficient Class D amplifier powers 4 full-range micro drivers
- Dual inputs allow you to connect 2 audio players at the same time (second cable not included)
- Perfect for portable CD players, MP3 players and DVD players
- 1Hx5.3Wx10.25L”; 2.4 lbs.
Enhanced, Portable Sound For MP3, CD, And Other Portable Audio Players You’ve got a CD player, an MP3 player, and a portable DVD player, but until now you were the only one listening. Introducing the Altec Lansing inMotion iM4 portable audio system. This tiny, portable, battery-operated stereo system lets you share the sounds at home, at the beach, on the go… where ever. A highly efficient Class D amplifier powers four full-range micro drivers to deliver a full spectrum of pure, distinct sound
Rating: 
(out of 26 reviews)
List Price: $ 99.99
Price: $ 29.87
Altec Lansing / Plantronics BackBeat 903 Bluetooth Stereo Headphone | US $49.99 End Date: Thursday May-24-2012 15:18:59 PDT Buy It Now for only: US $49.99 Buy it now | Add to watch list |
Question by rebelangels: Very loud humming bass coming out of my Altec Lansing Speakers?
Altec Lansing Vs4121blk
I’ve lived with these for about 10 months now, and they’re great. Just yesterday, I decided to change my room around and unplugged everything.
Now, when I turn the power on, I only get this loud continuous bass. I doubt it has something to do with volume control, cause no matter what I do, I can’t seem to lower down it’s volume even.
Can anyone help, please?
Best answer:
Answer by WebtvDan
You’re describing a “ground loop”.
You definitely have a grounding issue.
The easiest solution is to make sure all your equipment is plugged into a single surge protector. If that isn’t possible – make sure everything is plugged into the same wall outlet.
In the unlikely event after plugging everything into the same outlet you still have a loud hum the final step is an inexpensive ground lifting “cheater plug”. This can be very dangerous and would never recommend cheater plugs with high voltage equipment i.e. most home theater receivers or amplifiers.
Cable Television is famous for creating grounding issues, doubt that’s the problem with computer speakers.
Add your own answer in the comments!
3.5mm Portable Stereo Headset Speaker Connector Audio Adapter For Sony Ericsson
 | US $4.49 (0 Bid) End Date: Thursday May-24-2012 16:10:13 PDT Bid now | Add to watch list |
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Review by Marco De Vivo for Altec Lansing IM4 Portable Audio System
Rating:
A very good audio system, but sounds exactly the same as the previous IM2 which you can have for half the price.
I have been all my life in HI-FI, and honestly believe I can easily distinguish the characteristic sound of any of these kind of systems. Nevertheless, to me, IM2 and IM4 really sound exactly the same. So, before buying an IM4, give a try to IM2s or (if you believe me) just look for IM2s’offers at Amzon or elsewhere (they are still very popular systems).
As said above, you will find IM2s for HALF the price of IM4s.
Review by Bill Clark for Altec Lansing IM4 Portable Audio System
Rating:
I spend a lot of time on planes and in hotel rooms, and my Zen Micro is a lifesaver. I wanted music in the hotel room, however, and bought these after some study.
Sound quality is excellent, with good bass. Physical design is also very convenient: folds into a flat package, fits into a soft cloth bag, takes up very little room in my suitcase. When open for business, the non-slip plastic on the top of the center unit is an excellent place to set your music player. The plug-in is a short cord that retracts into the main unit when not in use.
The external power adapater is an especially clever design, with ‘snap in’ plug adapters for US, UK & other AC plug types.
May also be powered by 4 AA batteries, but in this regard I’ve had less luck: left the unit ‘on’ by accident when I unplugged it, and when I returned to my hotel room, the batteries were exhausted.
Review by Norman C. Hunter for Altec Lansing IM4 Portable Audio System
Rating:
If a person has a non Ipod MP3 player i.e. Creative, Dell, or Iriver and does wants to hear music out in the open the choices are pretty limited. The sound of these portable speakers are more extended than the Creative Travelmate in the bass and treble but still are a bit on the thin side sonically but what can you expect for $70 to $80? Dell is asking $100 for this product which is too much. The specs say that the bass goes down to 60 hz which I find hard to believe. Probably 100 hz is more realisitic. For listening to music while traveling or for casual listening in out of the way rooms of your home this is worth the money otherwise buy a real stereo.
Review by Charles W. Clark for Altec Lansing IM4 Portable Audio System
Rating:
I’m not an expert audiophile, but this sounds great when paired with a laptop or PDA (Axim X30 in my case).
With a laptop and wireless connection, you can have a good little sound system in any room in the house. I listened to the Metropolitan Opera broadcast this past Saturday, courtesy of the audio stream provided by WHRO. This gave better sound quality than I get when listening to the local FM radio through my home audio system.
Some thoughtful features provided by the manufacturer: mains power adaptor comes with 5 interchangeable plugs to fit US, UK, European wall fixtures, plus some others I don’t recognize; there is a built-in retractable input jack, presumably compatible with standard headphone outputs from MP3 players and the like (I only used it, satisfactorily, with the Axim X30); a separate detached input line is provided, I suppose standard, which worked with my ThinkPad.
Overall I am quite happy with this device and consider it good value for money at the price offered by Amazon.
Some areas for possible improvement: again, I am no expert, but is it possible for someone to build a device like this which gets both its power and input signal from a single USB conection? The interchangeable mains plugs are a great feature, but they would be much more useful if they were interfaced to a USB power adaptor that could recharge PDAs. Also the mechanics of the retractable input line look a bit flimsy, and I have seen complaints in this forum about the durability of such fixtures in similar systems made by this manufacturer.
Still for $70 I think it a good deal, a system that greatly expands the entertainment value of laptops and PDAs.
Review by Dan L. Johnson for Altec Lansing IM4 Portable Audio System
Rating:
This is a good quality speaker for 1 room performance. The sound reproduction across the range is very good for a small compact unit. It folds neatly, has it’s own transport bag and external 115 volt AC to DC adapter. It also uses AA batteries.
Overall the unit is sturdy and folds out easy on rotation which is stable. A good unit for the money. One does not expect deep bass from 2 1/2 “speakers. Overall I recommend it to take with you.
Dr. Dan Johnson
Chapmanville, WV