In this review, we will be comparing C7ES-3 XD2 and P3ESR XD2, two Passive Bookshelf speakers by Harbeth.
Let's have a brief look at the main features
of Harbeth C7ES-3 XD2 and Harbeth P3ESR XD2 first before getting into our more
detailed comparison.
| Key Specs | Harbeth C7ES-3 XD2 | Harbeth P3ESR XD2 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" Dome | 0.75" Dome |
|---|
| Woofer | 8" RADIAL | 4.5" RADIAL |
|---|
| Frequency response | 45-20k Hz | 75-20k Hz |
|---|
| Sensitivity | 86 dB | 83 dB |
|---|
| Impedance | 6 ohms | 6 ohms |
|---|
| Power range | 25-150 watts | 15-50 watts |
|---|
| Weight | 13.20kg / 29lbs | 6.10kg / 13.4lbs |
|---|
| Dimensions (H x W x D) | 20-1/2" x 10-11/16" x 12"
520.0 x 272.0 x 305.0mm | 12-1/16" x 7-1/2" x 7-1/4"
306.0 x 190.0 x 184.0mm |
|---|
C7ES-3 XD2 and P3ESR XD2 are members of Harbeth's XD2 series of speakers. Below you can find the loudspeakers from this series.
Harbeth XD2 Series
History
What size room are the Harbeth C7ES-3 XD2 and Harbeth P3ESR XD2 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* |
Harbeth C7ES-3 XD2 |
Harbeth P3ESR XD2 |
| Near-field |
Average |
Good |
| Small Room |
Good |
Good |
| Mid-size Room |
Average |
Average |
| Large Room |
Poor |
Poor |
| Very Large Room |
Bad |
No way |
(* 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
Both C7ES-3 XD2 and P3ESR XD2 are 2-way speakers.
Harbeth C7ES-3 XD2Harbeth P3ESR XD2
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Harbeth C7ES-3 XD2 |
Harbeth P3ESR XD2 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
0.75-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 8-inch
|
1 x 4.5-inch
|
C7ES-3 XD2 features a 1" Ferrofluid-cooled dome Dome Tweeter and 1 x 8" RADIAL Woofer. On the other hand, the P3ESR XD2 features a 0.75" Ferrofluid-cooled dome Dome Tweeter and 1 x 4.5" RADIAL Woofer.
Frequency Response
C7ES-3 XD2 has a frequency range of 45-20k Hz whereas P3ESR XD2 has a frequency range of 75-20k Hz. With a minimum frequency of 45Hz, the C7ES-3 XD2 can go significantly deeper on the low side and provide stronger bass compared to the P3ESR XD2's min frequency of 75Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf 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
C7ES-3 XD2 and P3ESR XD2 have the same Impedance of 6 ohms but where they differ is the sensitivity levels. C7ES-3 XD2 sensitivity is rated at 86 dB and the P3ESR XD2's is at 83 dB. This 3 dB difference makes the Harbeth C7ES-3 XD2 a more sensitive speaker compared to Harbeth P3ESR XD2, 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. Staying
within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.
C7ES-3 XD2 can handle a max power of 150 watts RMS, whereas P3ESR XD2 has a max power handling value of 50 watts RMS, 100 watts less than the C7ES-3 XD2.
Note that higher power handling does not make a speaker louder: that depends mainly on
sensitivity and impedance. The calculator below shows how loud each of these actually plays
on a real amplifier.
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.
Input Type and Bi-Amping / Bi-Wiring
C7ES-3 XD2 features Binding post type posts and P3ESR XD2 has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.
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 Harbeth C7ES-3 XD2's and Harbeth P3ESR XD2's external dimensions. Harbeth C7ES-3 XD2 has external dimensions of 520.0 x 272.0 x 305.0mm (20-1/2 x 10-11/16 x 12inch) whereas Harbeth P3ESR XD2 has external dimensions of 306.0 x 190.0 x 184.0mm (12-1/16 x 7-1/2 x 7-1/4inch).
Harbeth C7ES-3 XD2 is clearly the larger of the two speakers. Its body is 82mm wider, 214mm taller and 121mm deeper than Harbeth P3ESR XD2.
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 Harbeth C7ES-3 XD2 is approximately 829.6cm2 / 128.6inch2 and base area of the Harbeth P3ESR XD2 is approximately 349.6cm2 / 54.2inch2. The C7ES-3 XD2 requires 137% more surface area than the P3ESR XD2 which gives it a small disadvantage 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 Harbeth C7ES-3 XD2 weighs 13.20kg / 29lbs and the Harbeth P3ESR XD2 weighs 6.10kg / 13.4lbs. This makes the C7ES-3 XD2 116% heavier than the P3ESR XD2.
Here is a comparison of how C7ES-3 XD2 and P3ESR XD2's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
 Max Input Power |
150 watts
vs
50 watts
|
Handle more power from your amplifier |
 Sensitivity |
86 dB
vs
83 dB
|
Play louder with same amount of amplification power |
 Woofer Size |
8 inches
vs
4.5 inches
|
Larger woofer |
|
Low Frequency Response |
45 Hz
vs
75 Hz
|
Generates deeper bass |
 Height |
306mm
vs
520mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
349cm2
vs
829cm2
|
Takes less floor space |
 Price per pair* |
3790USD
vs
5290USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Harbeth C7ES-3 XD2 |
Harbeth P3ESR XD2 |
| Brand |
Harbeth |
Harbeth |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
25-150 watts |
15-50 watts |
| Sensitivity |
86 dB |
83 dB |
| Impedance |
6 ohms |
6 ohms |
| Frequency Response |
45-20k Hz |
75-20k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
4.5" |
| Woofer Composition |
RADIAL |
RADIAL |
| Tweeter Size |
1" |
0.75" |
| Tweeter Type |
Dome |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
Physical Specs |
|
|
| Height |
520.0mm (20.5") |
306.0mm (12") |
| Width |
272.0mm (10.7") |
190.0mm (7.5") |
| Depth |
305.0mm (12") |
184.0mm (7.2") |
| Weight |
13.20kg (29lbs) |
6.10kg (13.4lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Mounting Bracket |
|
|
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |
Siblings in Harbeth's XD2 series, so they share a family sound. It comes down to size, output and price.
| Area | Better | Why |
|---|
| Bass |
A |
Harbeth C7ES-3 XD2 digs deeper - 45Hz against 75Hz. |
| Amplifier needs |
A |
Harbeth C7ES-3 XD2 is more sensitive (86dB vs 83dB), so it goes louder on the same amplifier. |
| Headroom |
A |
Harbeth C7ES-3 XD2 takes more power (150W vs 50W) - more in hand in a big room. |
| Size |
depends |
Harbeth P3ESR XD2 is easier to place; Harbeth C7ES-3 XD2 is bigger, which usually goes with fuller bass. Your room decides. |
| Price |
B |
Harbeth P3ESR XD2 is cheaper - $3,790 against $5,290, about 28% less. |
A Harbeth C7ES-3 XD2
B Harbeth P3ESR XD2
depends neither is better in the abstract - it turns on your room, placement or how you will use them.
Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
The usual trade-off: Harbeth C7ES-3 XD2 measures better, Harbeth P3ESR XD2 costs about 28% less. Whether that gap is worth the money is the call only you can make - and in a normal room it is often smaller than the numbers suggest. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 75Hz anyway, which makes the cheaper Harbeth P3ESR XD2 much easier to justify. Match it to your room: we rate Harbeth P3ESR XD2 the better fit for near-field listening; elsewhere the two are rated the same.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.