In this review, we will be comparing MartinLogan Foundation F1 and RP-6000F, two Passive Floor-standing speakers from MartinLogan and Klipsch. Let's have a brief look at the main features
of MartinLogan Foundation F1 and Klipsch RP-6000F first before getting into our more
detailed comparison.
What size room are the MartinLogan Foundation F1 and Klipsch RP-6000F 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:
In the following sections, we will get into more detail in order to better understand how the MartinLogan Foundation F1 and Klipsch RP-6000F 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 MartinLogan Foundation F1 is a 3-way design whereas the RP-6000F is a 2-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 |
MartinLogan Foundation F1 |
Klipsch RP-6000F |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 5.5-inch |
- |
|
Woofer
|
3 x 5.5-inch
|
2 x 6.5-inch
|
MartinLogan Foundation F1 features a 1" Gen2 Obsidian Folded Motion Ribbon Tweeter , a 5.5" Midrange and 3 x 5.5" Aluminum Woofer with a Crossover frequency at 240 Hz - 3700 Hz. On the other hand, the RP-6000F features a 1" Tractrix Horn Tweeter and 2 x 6.5" Cerametallic Woofer .
Frequency Response
MartinLogan Foundation F1 has a frequency range of 41-23k Hz whereas RP-6000F has a frequency range of 34-25k Hz. With a minimum frequency of 34Hz, the RP-6000F can go significantly deeper on the low side and provide stronger bass compared to the MartinLogan Foundation F1's min frequency of 41Hz.
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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
MartinLogan Foundation F1
High Frequency
Floor-standing Speakers
MartinLogan Foundation F1
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
MartinLogan Foundation F1 is a 4 ohms speaker compared to the RP-6000F 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 MartinLogan Foundation F1 can provide this impedance level.
These two speakers also have different sensitivity levels. MartinLogan Foundation F1 sensitivity is rated at 92 dB and the RP-6000F's is rated at 97 dB. This 5 dB difference makes the Klipsch RP-6000F a more sensitive speaker compared to MartinLogan Foundation F1, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing Speakers
MartinLogan Foundation F1
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.
MartinLogan Foundation F1 can handle a max power of 200 watts RMS from the amp the whereas RP-6000F has a max power handling value of 125 watts RMS, 75 watts less than the MartinLogan Foundation F1.
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
RP-6000F features Post posts which make bi-amping or bi-wiring possible. MartinLogan Foundation F1 has a Binding post which doesn't feature bi-amping/bi-wiring.
MartinLogan Foundation F1's Binding post terminals
Klipsch RP-6000F's Post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Both MartinLogan Foundation F1 and RP-6000F have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
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 MartinLogan Foundation F1's and Klipsch RP-6000F's external dimensions. MartinLogan Foundation F1 has external dimensions of 1053.0 x 213.0 x 367.0mm ( 41-7/16inch x 8-3/8inch x 14-7/16inch ) whereas Klipsch RP-6000F has external dimensions of 1010.0 x 237.0 x 432.0mm ( 39-3/4 x 9-5/16 x 17inch) .
MartinLogan Foundation F1 is 24mm narrower and 65mm less deeper than Klipsch RP-6000F but it is also 43mm taller.
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 MartinLogan Foundation F1 is approximately 781.7cm2 / 121.2inch2 and base area of the Klipsch RP-6000F is approximately 1023.8cm2 / 158.7inch2. The MartinLogan Foundation F1 requires 24% less surface area than the RP-6000F 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 MartinLogan Foundation F1 weighs 21.14kg / 46.5lbs and the Klipsch RP-6000F weighs 22.27kg / 49lbs. This makes the RP-6000F 5% heavier than the MartinLogan Foundation F1.
Here is a comparison of how MartinLogan Foundation F1 and RP-6000F's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
MartinLogan Foundation F1
What's in the Box of Klipsch RP-6000F?
Here are the items that come with the RP-6000F:
Floorstanding loudspeakerStabilizer feet (installed)Grille (installed)2 Terminal jumpers (installed)User ManualImportant Safety InstructionsWarranty Information
 Max Input Power |
200 watts
vs
125 watts
|
Handle more power from your amplifier |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
 Number of Woofers |
3
vs
2
|
More woofers |
 Base Surface Area |
781cm2 (213x367mm)
vs
1023cm2 (237x432mm)
|
Takes less floor space |
 Sensitivity |
97 dB
vs
92 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
| Woofer Size |
6.5 inches
vs
5.5 inches
|
Larger woofer |
| Low Frequency Response |
34 Hz
vs
41 Hz
|
Generates deeper bass |
 High Frequency Response |
25k Hz
vs
23k Hz
|
Generates higher frequency |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Height |
1010mm
vs
1053mm
|
Easier to fit in smaller spaces |
 Price per pair* |
1378USD
vs
1499USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
MartinLogan Foundation F1 |
Klipsch Reference Premiere RP-6000F |
| Brand |
MartinLogan |
Klipsch |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 200 watts |
up to 125 watts |
| Sensitivity |
92 dB |
97 dB |
| Impedance |
4 ohms |
8 ohms |
| Frequency Response |
41-23k Hz |
34-25k Hz |
Drivers |
|
|
| Woofer Quantity |
3 |
2 |
| Woofer Size |
5.5" |
6.5" |
| Woofer Composition |
Aluminum |
Cerametallic |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Folded Motion Ribbon |
Tractrix Horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
5.5" |
No |
| Crossover Frequency |
240 Hz - 3700 Hz |
n/a |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
1053.0mm (41.5") |
1010.0mm (39.8") |
| Width |
213.0mm (8.4") |
237.0mm (9.3") |
| Depth |
367.0mm (14.4") |
432.0mm (17") |
| Weight |
21.14kg (46.5lbs) |
22.27kg (49lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
n/a |
MDF/Wood-grain vinyl |
| Available Colors |
Walnut,Black,Satin White |
Walnut, Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
Yes |
Other |
|
|
| Parts Warranty |
5 years |
5 Years |
| Labor Warranty |
5 years |
5 Years |