Gladen Zero Pro 165.2 DC speakers

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component speakers, Ø 165 mm, 150 W RMS, 3 Ω, 93.25 dB (2.83V/1m), installation depth 69.5 mm
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Gladen Zero Pro 165.2 DC speakers

The Zero Pro model line sits between Gladen's advanced Zero line and the high-end Pro line. Zero Pro thus makes available the current state-of-the-art technology and top-quality sound taken from Gladen's top ranks to a wider target group. All components are hand-made and assembled in Germany, which guarantees top quality workmanship. German precision is evident in every detail of the Zero Pro series speakers - a membrane made of hardened paper with grains of fine sand, a lightweight aluminum basket for the mid-bass speakers, silk tweeters with a design Hexagon grid or a robust magnet guarantee not only an advanced sound presentation, but also high performance. A frequency crossover with a wide range of settings also contributes to optimal sound reproduction (does not apply to the Active version). Zero Pro brings several improvements to the popular Zero series, which bring these speakers even closer to creating a top-notch sound system focused on sound quality.

Main features of Gladen Zero Pro 165.2 DC speakers

Zero Pro series 2-way component speakers.
Frequency crossovers with 504 combinations of sound settings and gold-plated terminals.
High sensitivity and reduced impedance of 3 ohms will enable lower demands on the amplifier.
Membrane made of hardened paper with grains of fine sand.
Larger 38mm coil size for high performance without distortion.
Tweeter with a diameter of 28 mm with a silk dome and aluminum casing.
Design Hexagon tweeter grid for versatile installation.
Possibility to remove the tweeter from the aluminum case.
Screw connection terminals on the mid-bass speaker.
Corduroy made of meta-aramid fiber with strong resistance (Nomex).
Lightweight aluminum basket in black anodized finish.
Robust magnet system with rubber protection.
Rubber hinge for long-term durability.
Handmade and assembled in Germany.

Catalog number	ZERO PRO 165.2 DC
Brand	Happy
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.	Component 2-band
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!	150 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!	225 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.	93.25 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.	69.5 mm
Mid-woofer diaphragm materialThe material that was used for the speaker diaphragm. Don't be afraid of the paper, it surprisingly has a very natural and high-quality sound and, thanks to the surface treatment, it can withstand moisture without any problems.	Paper
Overall tweeter diameterThe total diameter of the tweeter is given as the diameter of the individual tweeter without the installation houses.	54 mm
Tweeter dome diameterThe net diameter of the dome (diaphragm) of the tweeter.	25 mm
The overall depth of the tweeterThe total depth of the tweeter itself without the installation houses.	19.9 mm
Tweeter dome materialThe shell material that was used in the manufacture of the tweeter.	Silk
Frequency crossover included in the packageThe crossover is an important part of defacto all loudspeakers. A crossover usually contains different resistor values, coil sizes, and capacitor types that fundamentally modify the sound. We describe below what the turnouts are for. Component Speakers: A crossover is part of every quality component speaker system. Its task is to ensure the distribution of frequencies that the amplifier produces in the entire acoustic spectrum of frequencies so that each of the speakers receives only that part of the band that it can optimally play in terms of efficiency and minimal distortion. Coaxial speakers: In most cases, coaxial loudspeakers have a simple crossover (6dB/Oct.) formed by a capacitor at the tweeter.	Yes
Options for setting the frequency crossoverThe unwritten rule is that the more expensive the speakers, the more options the crossover has for adjusting the sound. The most common way to adjust the crossover is attenuation on the tweeter. More advanced crossovers also offer the option of setting the steepness on the mid-bass and tweeter or adjusting the frequency range.	Yes - 504 options
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.	Few