Xmax (Thiele/Small Parameter)
Xmax refers to the maximum distance the diaphragm can move from its resting position in a linear manner without causing undesirable effects such as distortion or damage to the loudspeaker. Excursion of the diaphragm is crucial determinant of a driver's performance, as it determines its ability to reproduce low-frequency sounds with sufficient volume and accuracy. Xmax is typically specified in millimeters (mm) and is measured as the peak-to-peak distance that the diaphragm can move without exceeding certain performance limits. This maximum excursion is typically defined as the point where the loudspeaker's distortion or nonlinearity exceeds a certain threshold, often specified as a percentage of total harmonic distortion (THD) or intermodulation distortion (IMD).
The Xmax specification provides valuable information to loudspeaker designers. While commonly of interest in subwoofers and woofers to determine bass capabilities, it is also important on midranges and tweeters to help determine the lowest frequency they can be crossed over without introducing problematic artifacts.
Main Page
Exploring Common DIY Terminology - Xmax (Thiel/Small Parameter)
Collapse
-
Created by:
technodanvan
- Published: 31 July 2023, 15:00 Monday
- 34 views
- 0 comments
-
Categories
Collapse
article_tags
Collapse
- arta (1)
- Audio Components (1)
- baffle step (1)
- blu-ray (1)
- build (1)
- community (1)
- crossover (2)
- dac (1)
- definitions (1)
- design (1)
- diy (9)
- diy forums (1)
- diy speaker (7)
- Floor standing Speakers (1)
- fs (1)
- glossary (1)
- Home Theater components (1)
- infinity baffle (1)
- measurements (5)
- rew (2)
- room eq (1)
- speaker (2)
- speaker diy (1)
- terminology (5)
- vituixcad (8)
Latest Articles
Collapse
-
by technodanvanSuspension
The suspension refers to the mechanical system that provides support and control for the diaphragm (cone/dome) and voice coil within the driver's magnetic structure. The suspension is an important component that allows the diaphragm to move back and forth in response to the electrical audio signal while maintaining stability and linearity. The suspension system typically consists of two key components: the spider and the surround.- Spider: The spider, also known as the "speaker
-
Channel: Terminology
26 July 2023, 08:28 Wednesday -
by technodanvanSurround
In the context of loudspeaker drivers, the surround, also known as the "speaker surround" or "suspension surround," is a component that plays an important role in the driver's suspension system. The surround is typically a flexible ring or membrane that connects the outer edge of the loudspeaker diaphragm (cone/dome) to the driver's frame (basket). The primary function of the surround is to provide a compliant and flexible suspension for the diaphragm, allowing...-
Channel: Terminology
26 July 2023, 08:17 Wednesday -
-
by technodanvanSpider
In the context of loudspeaker drivers, the spider refers to a component that plays an important role in the suspension system of the driver. The spider is an essential part of the driver's overall mechanical structure, helping to center and control the movement of the voice coil and diaphragm within the magnetic gap. The spider is typically located between the voice coil and the frame (basket) of the loudspeaker driver. It is made of a flexible material, such as cloth or treated...-
Channel: Terminology
26 July 2023, 08:06 Wednesday -
-
by technodanvanSoundstage
Soundstage refers to the perceived spatial placement and localization of sound sources in a recording. It describes the three-dimensional presentation of audio, making it seem as if the sound is originating from specific locations within the listening environment, rather than coming directly from the loudspeakers. When a recording and playback system is capable of creating a convincing soundstage, listeners can experience a more immersive and realistic audio experience. The...-
Channel: Terminology
26 July 2023, 07:58 Wednesday -
-
by technodanvanSINAD (Signal to Noise and Distortion ratio)
While not directly applicable to loudspeaker design, SINAD is a term in common use and is a valuable tool when comparing electronic equipment to match with your speakers. It can also be used when deciding what equipment you'd like to use for your measurement setup. SINAD stands for "Signal-to-Noise and Distortion ratio." It is a metric used to quantify the audio quality of electronic devices, particularly audio equipment like amplifiers...-
Channel: Terminology
26 July 2023, 07:41 Wednesday -
-
by technodanvanSignal-to-Noise Ratio (SNR)
The signal-to-noise ratio (SNR) is an important parameter that helps evaluate the performance and quality of the audio output. In the context of audio, SNR refers specifically to the ratio of the desired audio signal (the sound produced by the loudspeaker driver) to the background noise generated by the speaker itself or the overall system.
The formula to calculate SNR in decibels is:...
SNR (dB) = 10⋅log10(PowerSignal/PowerNoise)-
Channel: Terminology
25 July 2023, 15:20 Tuesday -