Basic question about sensitivity


Obviously I am mistaken, and I am positive that this has been covered before,  but I had thought that the higher the number (sensitivity) the easier the speaker was to drive.  However, when I read a thread in which someone is talking about a speaker they have or are interested in, I frequently do a cursory search and a little bit of reading about it, and, for example, a while ago I read a review & specs on the Monitor Audio Gold 300 5G with a sensitivity rating of either 90 or 91 (which I would have thought at one time meant it was a pretty easy load to drive) but the recommended amp was 100 to 250 wpc.

On the other hand, I just did a search and some reading on the Harbeth P3ESR XD which has a sensitivity rating of 83 (which at one time I would have thought meant it was a tough load to drive) but they are recommending amps "from 15 wpc".

What is the number listed for a speakers sensitivity actually meaning?

 

immatthewj

OP,

 

You know, that is a great question… since they sit off in a niche to me, they are unique sounding. So, I had to ask that question. So, I did some research. I think in the process… came to the realization that the Harbeth claim of “easy to drive” may be more marketing hype than anything. Bard summarizes:

 

There are several reasons why Harbeth speakers are considered a niche speaker:

1. Limited Production: Unlike many mainstream speaker brands that mass-produce their products, Harbeth maintains a commitment to small-scale production. Each speaker is hand-assembled and inspected in their UK factory, ensuring high standards of craftsmanship and quality control. This limited production contributes to their exclusivity and appeal among audiophiles who appreciate the difference that handcrafted products can offer.

2. Unique Sound Signature: Harbeth speakers are not designed to cater to the broadest possible audience. Their distinctive "voicing" emphasizes a warm, smooth, and mid-range focused sound, which may not appeal to listeners who prefer a more neutral or analytical sound signature. This specific sonic character attracts a dedicated following among those who appreciate its natural and musical qualities, particularly for listening to acoustic genres and vocals.

3. Focus on Quality Over Technology: While many modern speakers incorporate cutting-edge technology and features,Harbeth prioritizes traditional construction methods and high-quality materials. They remain committed to using thick MDF cabinets, hand-built crossovers, and time-tested driver technologies. This focus on essential elements may not resonate with listeners who prioritize the latest technological advancements, but it appeals to those who value the enduring qualities of craftsmanship and classic design.

4. Specific Amplifier Requirements: Harbeth speakers have a nominal impedance of 6 ohms, which can be a challenge for some mainstream amplifiers. These amplifiers may not deliver enough current to drive the speakers to their full potential, potentially resulting in a less dynamic and detailed sound. This requirement for specific amplification options limits their accessibility to a broader audience, but it also attracts audiophiles who enjoy the challenge of pairing their speakers with compatible equipment to achieve the best possible sound.

5. Price and Value: Harbeth speakers are not inexpensive, and their pricing can be considered high compared to mass-produced speakers with similar features. This can be a barrier for entry for many potential buyers. However, for audiophiles who value exceptional build quality, unique sound character, and long-lasting value, Harbeth speakers offer a worthwhile investment. Their focus on quality over quantity ensures a superior listening experience that justifies their higher price point for dedicated music lovers.

Overall, Harbeth speakers occupy a niche within the speaker market due to their unique combination of traditional design,specific sonic character, high-quality materials, and limited production. They cater to a select group of audiophiles who appreciate the craftsmanship, musicality, and long-term value that they offer. This niche positioning allows them to focus on their core strengths and continue producing exceptional speakers for discerning listeners who value a truly special audio experience.


 

 

A singular focus on a particularly poorly crafted specification, in this case one that includes trash aka distortion as output, is not a wise pursuit. Easy load with low distortion ( breakup, frequency response, impulse, time and phase ) would be laudable.

 

4. Specific Amplifier Requirements: Harbeth speakers have a nominal impedance of 6 ohms, which can be a challenge for some mainstream amplifiers. These amplifiers may not deliver enough current to drive the speakers to their full potential, potentially resulting in a less dynamic and detailed sound. This requirement for specific amplification options limits their accessibility to a broader audience, but it also attracts audiophiles who enjoy the challenge of pairing their speakers with compatible equipment to achieve the best possible sound.

 

Thanks, @ghdprentice , I am running a Cary V12 which is switchable between 50 wpc triode and 100 wpc ultralinear. I am currently running it in triode, and honestly, I do not think I would want to pair it with anything that I could not drive in its triode setting.

 

 

and a cabinet that contributes to….. output…not present in the…. input

@tomic601 , can you expound upon that?

 

OP,

 

I have Audio Research 160 amps. They operate either 140 wpc ultra linear or 70 wpc triode. Although the sound output is hardly different between the two… the triode mode is more musical to me. I have paired this amp with 90db sensitive Sonus Faber Amati Traditional speakers. Works great at any volume. 
 

Your Cary amp sounds great. If I were you I would want to hear the combination before committing,