Gladen Sigma 165-X speakers

Name: Gladen Sigma 165-X speakers
Brand: Gladen
Price: 249.00 EUR

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coaxial speakers, Ø 165 mm, 175 W RMS, 3 Ω, 92 dB (2.83V/1m), mounting depth 68 mm
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Gladen Sigma 165-X speakers

The Sigma line from Gladen combines the brand's traditional values with modern technologies focused on easy integration into contemporary vehicles. Speakers in this range build on the success of the Zero and Zero Pro models, offering higher sound quality, better control and significantly broader application possibilities in both OEM and custom installations. Sigma is designed as a universal yet sonically advanced series for discerning listeners who demand clear, dynamic and natural sound without complicated installation.

The Gladen Sigma 165-X is a 2-way coaxial speaker conceived as a single-point sound source (Single-Point). The coaxial arrangement of the 19 mm tweeter directly in the acoustic center of the mid-woofer ensures stable phase behavior and homogeneous sound dispersion across the entire frequency range. As a result, the sound is compact, natural and very readable even when mounted in doors without further modifications.

At the heart of the speaker is a 165 mm mid-woofer with a newly developed Hexatec Compound cone that combines high stiffness with low weight. Together with an extended maximum excursion, the speaker delivers very good dynamic performance, a precise kickbass and controlled low end without exaggeration. The resonant frequency of 48.9 Hz and Qts of 0.41 are optimized for working in door volumes and compact installation spaces, contributing to balanced and clear reproduction of the fundamental band.

Mechanical stability is ensured by a rigid aluminum basket with optimized airflow that reduces compression and supports low distortion even at higher volumes. The rubber surround and Nomex corrugated spider provide long life and stable parameters over time. The Sigma 165-X is thus an ideal choice for a high-quality coaxial solution where simplicity, accuracy and musical performance are prioritized.

Key features

2-way coaxial speaker from the Gladen Sigma series.
Single-Point concept with the tweeter in the acoustic center of the mid-woofer.
165 mm mid-woofer with Hexatec Compound cone.
Extended maximum excursion for greater dynamics and control.
Resonant frequency 48.9 Hz and Qts 0.41 optimized for door installations.
19 mm tweeter for homogeneous and natural reproduction.
Rigid aluminum basket with optimized airflow.
Rubber surround for long-term mechanical durability.
Nomex corrugated spider.
Suitable solution for OEM and high-quality aftermarket installations.

About the brand

Gladen is a renowned German brand specializing in the development and manufacture of car audio components, which over more than two decades has secured a top position in the industry. The brand was founded in Germany and key product development still takes place there, with emphasis on technical precision, build quality and long-term reliability. Gladen is known for its meticulous approach to sound tuning, low distortion and the ability to offer solutions from affordable systems to true high-end. The product range includes speakers, subwoofers, amplifiers and a wide assortment of installation accessories and damping materials. Gladen products have in the past received prestigious EISA awards, confirming the technical level and sound quality of the brand. Gladen is consistently one of the most popular brands on the German market and holds a strong position among demanding customers across Europe.

Catalog number	SIGMA 165-X
Brand	Gladen
Links	Official web presentation
Speaker typeCoaxial speakers: Coaxial speakers are characterized by a so-called all-in-one design. The tweeter and mid-bass speaker are in one basket. The advantage is simpler assembly, but thanks to the connection or proximity of the bands in one speaker, the sound quality will usually be reduced. As a rule, in the middle of the mid-bass speaker, there is a tweeter whose voice coil works in the second air gap of the common magnetic circuit. The three-way coaxial speaker consists of a mid-bass speaker, a center speaker and a separate tweeter in the front on a special beam. Component Speakers: Component speakers are characterized by a division into individual frequency bands, treble + mid-bass + or. bass band. The individual speakers can be placed completely separately, which results in a better sound and acoustic performance. In the vast majority of cases of component speakers, an external crossover is also supplied, which divides the treble, middle / mid-bass, and into the three-band the bass band or allows setting the decibel level of the tweeter (e.g. +2 dB, 0 dB, -2 dB), steepness (e.g. 6dB/Oct. 12dB/Oct.) or active or bi-amp connection.	Coaxial 2-way
RMS powerRMS speaker power is the constant power of the entire system, not just one speaker or one side. This is also the performance of continuous use of the speakers. If the RMS power is exceeded for a long time, the speakers may be irreversibly damaged!	175 W
Max. (maximum performancePeak performance , which the speaker can play for a moment (approx. 0.5 s), for example when hitting drums in a song. If the max power is exceeded, the speakers will usually be damaged!	250 W
Sensitivity (SPL 2.83V/1m)Sensitivity, sensitivity or efficiency of the speaker. Speaker sensitivity is given in decibels (dB) and simply put, the higher the value, the lower the demands on the amplifier's power. This is a defacto rating of how a speaker converts watts to sound. Sensitivity ratings are in noise level measured at 1 meter from the speaker using 1 W (watt of power) or using 2.83 volts at the source at 1 meter. A higher decibel level means the speaker is louder with less power. For every 3 dB increase in sensitivity, the speaker requires half the power to reproduce the same volume. For example, if an 88 dB speaker needs 100 Watts to produce a certain volume, then a speaker with a sensitivity of 91 dB needs only 50 Watts to reach the same volume.	92 dB
Sensitivity (SPL 1W/1m)Sensitivity, sensitivity or efficiency of the speaker. Speaker sensitivity is given in decibels (dB) and simply put, the higher the value, the lower the demands on the amplifier's power. This is a defacto rating of how a speaker converts watts to sound. Sensitivity ratings are in noise level measured at 1 meter from the speaker using 1 W (watt of power) or using 2.83 volts at the source at 1 meter. A higher decibel level means the speaker is louder with less power. For every 3 dB increase in sensitivity, the speaker requires half the power to reproduce the same volume. For example, if an 88 dB speaker needs 100 Watts to produce a certain volume, then a speaker with a sensitivity of 91 dB needs only 50 Watts to reach the same volume.	88 dB
ImpedanceImpedance - measurement of electrical resistance. When buying speakers, it is important to make sure that the impedance matches the amplifier or car stereo you are using. Example: A 2 Ohm speaker cannot be connected to an amplifier that is only stable up to 4 Ohms! A 4 Ohm speaker can easily be used with an amplifier that is stable up to 2 Ohms. The most common speaker impedance today is 3 - 4 Ohm.	3 Ω
The diameter of the mid-bass speakerWe state the diameter of the speaker as the diameter of the entire speaker, not including the mounts, when smaller speakers (87, 100, 130 mm) have extra mounts. Some speakers are oval and there the dimension is given in inches, always the shortest side to the longest side. One inch is approx. 2.5 cm.	165 mm
Installation depth of the mid-bass speakerThe installation depth of the speaker is measured from the bottom edge of the magnet to the bottom edge of the tin, plastic or cast speaker basket, or speaker bearing surfaces.	68 mm
Resonant frequency of the mid-bass speaker	48.9 Hz
Tweeter dome diameterThe net diameter of the dome (diaphragm) of the tweeter.	19 mm
Tweeter dome materialThe shell material that was used in the manufacture of the tweeter.	Silk
Cover grids included in the packageOriginal cover grilles in speaker packaging.	No
Price forIf the price is for a pair, the package always includes 2 pieces of everything, e.g. 2x mid-bass, 2x tweeter and 2x crossover.	Pair