In this review, we will be comparing Ultra Bookshelf and L100 Classic, two Passive Bookshelf speakers from SVS and JBL. Let's have a brief look at the main features
of SVS Ultra Bookshelf and JBL L100 Classic first before getting into our more
detailed comparison.
SVS Ultra Bookshelf Key Specs
- 2-way Design
- 1" Hard-Dome Tweeter
- 6.5" Composite glass-fiber Woofer
- 45-32k Hz Frequency Response
- 87 dB Sensitivity
- Impedance: 8ohms
- Power Range:20-150watts
- Weight:8.64kg
- Dimensions (H x W x D): 380.0" x 8-9/16" x 11-1/16"( 380.0 x 218.0 x 281.0mm )
JBL L100 Classic Key Specs
- 3-way Design
- 1" Dome Tweeter
- 5.25" Midrange
- 12" Pulp Woofer
- 5.25" Midrange
- 40-40k Hz Frequency Response
- 90 dB Sensitivity
- Impedance: 4ohms
- Power Range:25-200watts
- Weight:26.70kg
- Dimensions (H x W x D): 636.5" x 15.3" x 14.6"( 636.5 x 389.6 x 371.5mm )
What size room are the SVS Ultra Bookshelf and JBL L100 Classic speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:
| Listening Environment* |
SVS Ultra Bookshelf |
JBL L100 Classic |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| Very Large Room |
Poor |
Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)
In the following sections, we will get into more detail in order to better understand how the SVS Ultra Bookshelf and JBL L100 Classic compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
One of the fundamental differences between these two speakers is that Ultra Bookshelf is a 2-way design whereas the L100 Classic is a 3-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.
| Driver |
SVS Ultra Bookshelf |
JBL L100 Classic |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 5.25-inch |
|
Woofer
|
1 x 6.5-inch
|
1 x 12-inch
|
Ultra Bookshelf features a 1" aluminum Hard-Dome Tweeter and 1 x 6.5" Composite glass-fiber Woofer with a Crossover frequency at 2000Hz. On the other hand, the L100 Classic features a 1" Titanium Dome Tweeter , a 5.25" Midrange and 1 x 12" Pulp Woofer with a Crossover frequency at 450Hz and 3500Hz.
Frequency Response
Ultra Bookshelf has a frequency range of 45-32k Hz whereas L100 Classic has a frequency range of 40-40k Hz. With a minimum frequency of 40Hz, the L100 Classic can go significantly deeper on the low side and provide stronger bass compared to the Ultra Bookshelf's min frequency of 45Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
Ultra Bookshelf is a 8 ohms speaker compared to the L100 Classic which has a nominal impedance of 4 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the L100 Classic can provide this impedance level.
These two speakers also have different sensitivity levels. Ultra Bookshelf sensitivity is rated at 87 dB and the L100 Classic's is rated at 90 dB. This 3 dB difference makes the JBL L100 Classic a more sensitive speaker compared to SVS Ultra Bookshelf, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.
Ultra Bookshelf can handle a max power of 200 watts RMS from the amp the whereas Ultra Bookshelf has a max power handling value of 150 watts RMS , 50 watts less than the L100 Classic.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Ultra Bookshelf features 5-way post posts which make bi-amping or bi-wiring possible. L100 Classic has a Five-way gold-plated binding posts which doesn't feature bi-amping/bi-wiring.
SVS Ultra Bookshelf's 5-way post terminals allows Bi-amping or bi-wiring
JBL L100 Classic's Five-way gold-plated binding posts terminals
Cabinet Type and Port Position
Ultra Bookshelf has a rear firing port whereas L100 Classic has a front firing ports. JBL L100 Classic's front-firing port gives more flexibility in placement in regards to proximity to walls compared to SVS Ultra Bookshelf with its rear-firing port.
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare SVS Ultra Bookshelf's and JBL L100 Classic's external dimensions. SVS Ultra Bookshelf has external dimensions of 380.0 x 218.0 x 281.0mm ( 14-15/16 x 8-9/16 x 11-1/16inch) whereas JBL L100 Classic has external dimensions of 636.5 x 389.6 x 371.5mm ( 25.0 x 15.3 x 14.6inch) .
JBL L100 Classic is clearly the larger of the two speakers. Its body is 171.6mm wider, 256.5mm taller and 90.5mm deeper than SVS Ultra Bookshelf.
Below you can see the front view size comparison of SVS Ultra Bookshelf and JBL L100 Classic in scale.
Comparison image of SVS Ultra Bookshelf and JBL L100 Classic Size and External Dimensions
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the SVS Ultra Bookshelf is approximately 612.6cm2 / 95.0inch2 and base area of the JBL L100 Classic is approximately 1447.4cm2 / 224.3inch2. The Ultra Bookshelf requires 58% less surface area than the L100 Classic which gives it a small advantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The SVS Ultra Bookshelf weighs 8.64kg / 19lbs and the JBL L100 Classic weighs 26.70kg / 58.7lbs. This makes the L100 Classic 209% heavier than the Ultra Bookshelf.
Here is a comparison of how Ultra Bookshelf and L100 Classic's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of SVS Ultra Bookshelf?
Here are the items that are included inside the box of Ultra Bookshelf:
2 Bookshelf loudspeakers2 Grilles8 Rubber feet2 Terminal jumpers (pre-installed)Owners ManualSVS brochureOnline Product Registration Card
What's in the Box of JBL L100 Classic?
Here are the items that come with the L100 Classic:
Bookshelf loudspeaker
Grille
Owner's Manual