In this review, we will be comparing LRS+ and Prime Tower, two Passive Floor-standing speakers from Magnepan and SVS.
Let's have a brief look at the main features
of Magnepan LRS+ and SVS Prime Tower first before getting into our more
detailed comparison.
| Key Specs | Magnepan LRS+ | SVS Prime Tower |
|---|
| Design | — | 3-way |
|---|
| Tweeter | — | 1" dome |
|---|
| Midrange | — | 4.5" |
|---|
| Woofer | — | 2 x 6.5" Polypropylene |
|---|
| Frequency response | 50-20k Hz | 30-25k Hz |
|---|
| Sensitivity | 86 dB | 87 dB |
|---|
| Impedance | 4 ohms | 8 ohms |
|---|
| Power range | — | 20-250 watts |
|---|
| Weight | — | 18.23kg / 40.1lbs |
|---|
| Dimensions (H x W x D) | 48" x 13" x 1"
1219.2 x 330.2 x 25.4mm | 36-5/8" x 8" x 11-11/16"
931.0 x 204.0 x 297.0mm |
|---|
What size room are the Magnepan LRS+ and SVS Prime Tower 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* |
Magnepan LRS+ |
SVS Prime Tower |
| Near-field |
Poor |
Bad |
| Small Room |
Average |
Poor |
| Mid-size Room |
Good |
Average |
| Large Room |
Average |
Good |
| Very Large Room |
Poor |
Average |
(* 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.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
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Drivers
One of the fundamental differences between these two speakers is that LRS+ is a -way design whereas the Prime Tower 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 |
Magnepan LRS+ |
SVS Prime Tower |
|
Driver Setup
|
-way
|
3-way
|
|
Tweeter
|
-inch
|
1-inch
|
|
Midrange
|
- |
1 x 4.5-inch |
|
Woofer
|
x -inch
|
2 x 6.5-inch
|
LRS+ features a " Tweeter and x " Woofer. On the other hand, the Prime Tower features a 1" aluminum dome Tweeter, a 4.5" Midrange and 2 x 6.5" Polypropylene Woofer with a Crossover frequency at 350Hz and 2100Hz.
Frequency Response
LRS+ has a frequency range of 50-20k Hz whereas Prime Tower has a frequency range of 30-25k Hz. With a minimum frequency of 30Hz, the Prime Tower can go significantly deeper on the low side and provide stronger bass compared to the LRS+'s min frequency of 50Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
LRS+ is a 4 ohms speaker compared to the Prime Tower which has a nominal impedance of 8 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 LRS+ can provide this impedance level.
These two speakers also have different sensitivity levels. LRS+ sensitivity is rated at 86 dB and the Prime Tower's is rated at 87 dB. This 1 dB difference makes the SVS Prime Tower a more sensitive speaker compared to Magnepan LRS+, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing Speakers
Which plays louder on your amplifier?
Starting with a popular amplifier — change it to the one you own, or any you are
considering, and watch both numbers move.
Physical Specs
The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Magnepan LRS+'s and SVS Prime Tower's external dimensions. Magnepan LRS+ has external dimensions of 1219.2 x 330.2 x 25.4mm (48 x 13 x 1inch) whereas SVS Prime Tower has external dimensions of 931.0 x 204.0 x 297.0mm (36-5/8 x 8 x 11-11/16inch).
SVS Prime Tower is 126.2mm narrower and 288.2mm shorter than Magnepan LRS+ but it is also 271.6mm deeper.
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 Magnepan LRS+ is approximately 83.9cm2 / 13.0inch2 and base area of the SVS Prime Tower is approximately 605.9cm2 / 93.9inch2. The LRS+ requires 86% less surface area than the Prime Tower which gives it a small advantage on placement in tight spaces.
What's in the Box of SVS Prime Tower?
Here are the items that come with the Prime Tower:
- Floorstanding loudspeaker
- Grille (pre-installed)
- 4 Elastomer isolation feet (pre-installed)
- 4 Spike feet
- 4 Nuts
- 4 Protective discs
- Owners Manual
- SVS brochure
- Online Product Registration Card