Introduction
With the ongoing success of Apple's digital media player line of iPods iPod accessories have become a more and more popular option for companies to make a quick buck. Companies that once had no business selling product accessories for consumer electronics are now jumping into the game because of the success of the iPod. With the growing numbers carrying the personal audio device and this growing crop of users wishing to hear their music in more places speaker systems have become an increasingly popular accessory. With the announcement of Apple foray into serious iPod accessories we here at the orbiting headquarters decided to take some of the high-end consumer / low end pro-sumer iPod dockable speaker systems for a spin.
We used the following criteria for determining which units to include in this review:
- Price Range: MSRP US$250 - US$500
- iPod Integration: The unit most be iPod oriented and use the iPod's dock connector to interface with the iPod.
- Speakers The product must either have built in speakers or speakers included in the package.
- Audio Quality: There are a lot of iPod speaker systems out there we wanted to only pick ones that would be considered in the high-end consumer, low end prosumer range of quality.
The (somewhat) willing participants :
- Altec Lansing inMotion iM7
- Apple iPod Hi-Fi
- Klipsch iFi Speaker System
Testing Equipment
- 1 GB iPod Nano
- Radio Shack Digital-Display Sound-Level Meter
Methods
Anyone can say something sounds good to them, that doesn't tell you whether or not it's going to sound good to you. We wanted to add to the qualitative opinions floating around some quantitative numbers: numbers can't lie. To come up with our numbers we performed the following test:
- Frequency Response: We took our Decibel Meter and recorded the amount of sound pressure at frequencies across the human hearing spectrum. We used sine waves ranging from 10Hz to 20kHz and plotted them for each unit to determine the frequencies 'hyped' or given more emphasis by the sum of all the parts of the unit and the overall flatness of the response.
Music used in the test
As we said before anyone can say whether or not something sounds good to them and we are anyone. In these tests we take a listen and tell you what our ears think. We used a variety of genres of music to test the units. Music was selected to test response, frequency range and dB levels of reviewed units. We used 1411kpbs, sound sources for testing. The following pieces were primarily used in our testing and conclusions:
- Aaron Copland (Performed by Saint Louis Symphony Orchestra Dir. Leonard Slatkin) Appalachian Spring: Allegro
- Johann Sebastian Bach (Performed by Glenn Gould 1953) - Gouldberg Variations: Aria
- Johann Sebastian Bach (Performed by Ralph Kirsham) - Prelude to Suite No. 1
- The Beatles (Performed by Victor Whooten) - Norwegian Wood
- Dave Matthews (Dave Matthews and Tim Reynolds) - Say Goodbye
- Dr. Dre (feat. Lady of Rage, Kurupt, RBX) - Lyrical Gangbang
- Kaper and Washington (Performed by Joe Pass) - On Green Dolphin Street
- The Postal Service - Such Great Heights
- Soulive - Cannonball
- White America - Eminem
- Ave Maria
- Page and Plant - Thank You
- Paul Desmond - Take Five
- Mussorgsky (NY Philharmonic)- The Old Castle
Upward and onward!