Harmonic Distortion : 10% Rated Power

 

120

 

 

 

 

 

 

 

 

 

 

110

 

 

 

 

 

 

 

 

 

Pa)

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

90

 

 

 

 

 

 

 

 

 

(re

80

 

 

 

 

 

 

 

 

 

dB SPL

 

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

 

50

50

100

200

500

1k

2k

5k

10k

20k

 

20

 

 

 

 

 

Frequency (Hz)

 

 

 

 

 

2nd Harmonic

Figure 5

3rd Harmonic

 

Harmonic Distortion

Second and third harmonic distortions vs. frequency are plotted in Figures 5 and 6 for two power levels. Ten percent (10%) of rated input power and either one percent (1%) of rated input power or one watt, whichever is greater. Distortion is read from the graph as the difference between the fundamental signal (frequency response) and the desired harmonic. As an example, a distortion curve

that is down 40 dB from the fundamental is

equivalent to 1% distortion.

Harmonic Distortion : 1% Rated Power

 

110

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

Pa)

90

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

80

 

 

 

 

 

 

 

 

 

(re

70

 

 

 

 

 

 

 

 

 

dB SPL

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

 

50

 

 

 

 

 

 

 

 

 

 

40

50

100

200

500

1k

2k

5k

10k

20k

 

20

 

 

 

 

 

Frequency (Hz)

 

 

 

 

 

2nd Harmonic

Figure 6

3rd Harmonic

 

compact, weather-resistant package. The enclosure utilizes high-impact polypropy- lene in an injection-molded plastic trape- zoidal shape, along with a coated perforat- ed metal grille to offer a cosmetically ele- gant yet durable system.

The two-way system includes a 12" Black Widow® woofer with a Kevlar® impregnated cone and a specially treated surround, cone and dust cap for excellent weather resistance. The RX22 compres- sion driver features a 2" titanium diaphragm, a patented phase plug (U.S. Patent 6,064,745), and is coupled to an extremely smooth and well con- trolled constant directivity horn, with a coverage pattern of 90 degrees by 45 degrees that is molded into the enclosure. Input connection to the system is made via 1/4" phone jacks (2) or 4-pin Neutrik® Speakon® connectors. Provisions for biamplification are made through a 4-pin Neutrik® switching jack. The internal pas- sive crossover features Sound Guardto protect the tweeter, and utilizes high per- formance components and an advanced topology crossover to provide high power handling and a smooth yet clear response. The optimal integration of the crossover with the selected drivers results in a smooth frequency response from 75 Hz to 18 kHz.

The free-flow vented cabinet offers mounting point inserts top and bottom as well as a molded-in stand adapter for maximum utility and ease of use.

FREQUENCY RESPONSE:

This measurement is useful in deter- mining how accurately a given unit repro- duces an input signal. The frequency response of the Impulse 1012 (8 ohm) is measured at a distance of 1-meter using a 1 watt (into the nominal impedance) swept-sine input signal. As shown in Figure 1, the selected drivers in the Impulse 1012 (8 ohm) combine to give a smooth frequency response from 75 Hz - 18 kHz.

DIRECTIVITY:

Beamwidth is derived from the -6 dB points from the polar plots (Figure 3) which are measured in a whole space anechoic environment. Q and Directivity Index are plotted for the on-axis measure- ment position. These are specifications that provide a reference to the coverage characteristics of the unit. These parame- ters provide insight for proper placement and installation in the chosen environ- ment. The blending of the components of the Impulse 1012 (8 ohm) exhibit a desir- able beamwidth and directivity (Figure 3 and 4) suitable for sound reinforcement applications.

3

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Peavey 1012 manual Frequency Response, Directivity

1012 specifications

The Peavey 1012 is a versatile speaker designed for a range of musical applications, making it a popular choice among musicians and sound engineers. Known for its reliability and sound quality, the Peavey 1012 boasts several key features that set it apart from other speakers in its class.

One of the standout characteristics of the Peavey 1012 is its robust construction. The cabinet is built from high-quality materials that ensure durability while reducing unwanted resonance. This is crucial for producing clear sound without distortion, even at higher volumes. Additionally, the speaker is designed with a compact form factor, making it easy to transport and suitable for various performance environments.

The Peavey 1012 features a 12-inch woofer, which delivers deep bass and rich mid-range frequencies. This is accompanied by a high-frequency compression driver that allows for smooth, detailed treble response. Together, these components create a balanced audio output that enhances the overall listening experience, whether used in a live setting or for playback.

Another significant feature of the Peavey 1012 is its power handling capability. With a power rating that supports both passive and active configurations, the speaker can accommodate a wide range of amplifiers and audio setups. This flexibility makes it an excellent choice for musicians who may want to connect it to different sound systems depending on the venue.

Peavey has also integrated their proprietary technologies into the 1012. The inclusion of the SonicGuard protection circuitry prevents damage to the high-frequency driver, ensuring longevity and reliability during intense performances. Additionally, the speaker’s advanced dispersion patterns allow for an even coverage area, making it effective in both small and large venues.

Overall, the Peavey 1012 is a well-rounded speaker that exemplifies quality engineering and sound performance. Its combination of durability, sound fidelity, and versatile application makes it a favored option for touring musicians, DJs, and sound engineers alike. Whether you are performing at a small gig or a large event, the Peavey 1012 remains a dependable choice that delivers performance and clarity, ensuring that your sound is always front and center.