In this review, we will be comparing Heresy IV and RP-6000F, two Passive Floor-standing speakers by Klipsch
Let's have a brief look at the main features
of Klipsch Heresy IV and Klipsch RP-6000F first before getting into our more
detailed comparison.
Klipsch Heresy IV Key Specs
- 3-way Design
- 1" horn-loaded Tweeter
- 1.75" Midrange
- 12" Fiber-composite Woofer
- 48-20k Hz Frequency Response
- 99 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 100watts
- Weight:20.45kg
- Dimensions (H x W x D): 631.0" x 15-1/2" x 13-1/4"( 631.0 x 394.0 x 337.0mm )
Klipsch RP-6000F Key Specs
- 2-way Design
- 1" Tractrix Horn Tweeter
- 2 x 6.5" Cerametallic Woofer
- 34-25k Hz Frequency Response
- 97 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 125watts
- Weight:22.27kg
- Dimensions (H x W x D): 1010.0" x 9-5/16" x 17"( 1010.0 x 237.0 x 432.0mm )
In the following sections, we will get into more detail in order to better understand how the Klipsch Heresy IV 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 Heresy IV 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 |
Klipsch Heresy IV |
Klipsch RP-6000F |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 1.75-inch |
- |
|
Woofer
|
1 x 12-inch
|
2 x 6.5-inch
|
Heresy IV features a 1" titanium-diaphragm compression horn-loaded Tweeter , a 1.75" Midrange and 1 x 12" Fiber-composite Woofer . On the other hand, the RP-6000F features a 1" Tractrix Horn Tweeter and 2 x 6.5" Cerametallic Woofer .
Frequency Response
Heresy IV has a frequency range of 48-20k 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 Heresy IV's min frequency of 48Hz.
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
High Frequency
Floor-standing 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
Heresy IV and RP-6000F have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Heresy IV sensitivity is rated at 99 dB and the RP-6000F's is at 97 dB. This 2 dB difference makes the Klipsch Heresy IV a more sensitive speaker compared to Klipsch RP-6000F, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing 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.
Heresy IV can handle a max power of 125 watts RMS from the amp the whereas Heresy IV has a max power handling value of 100 watts RMS , 25 watts less than the RP-6000F.
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
Both Heresy IV and RP-6000F features dual binding post speaker terminals for bi-amping or bi-wiring.
Klipsch RP-6000F's Post terminals allows Bi-amping or bi-wiring
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 Klipsch Heresy IV's and Klipsch RP-6000F's external dimensions. Klipsch Heresy IV has external dimensions of 631.0 x 394.0 x 337.0mm ( 24-13/16 x 15-1/2 x 13-1/4inch) 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) .
Klipsch Heresy IV is 379mm shorter and 95mm less deeper than Klipsch RP-6000F but it is also 157mm wider.
Below you can see the front view size comparison of Klipsch Heresy IV and Klipsch RP-6000F in scale.
Comparison image of Klipsch Heresy IV and Klipsch RP-6000F 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 Klipsch Heresy IV is approximately 1327.8cm2 / 205.8inch2 and base area of the Klipsch RP-6000F is approximately 1023.8cm2 / 158.7inch2. The Heresy IV requires 30% more surface area than the RP-6000F which gives it a small disadvantage on placement in tight spaces.