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  5. Opus 28mm

Opus 28mm

60 Watt

Opus 28mm

Technical Highlights

  • Power 60 W RMS, impedance 4 Ω, sensitivity 89 dB.
  • Frequency response from 2,800 Hz to 20,000 Hz, ferrite magnet.
  • Dome material silk, voice coil diameter 28 mm.
  • More technical details
€1,551.03
€1,579.00 €1,551.03
2% discount with credit card
including VAT
Expected Sep 15 to Sep 18 with you.
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Product description

The Opus 28mm from Quartorigo is a Dome Tweeter with a diameter of 28 mm. The model features a 28 mm voice coil and a silk dome. A ferrite magnet supports the technical structure of the tweeter. The nominal power handling is 60 Watts RMS at an impedance of 4 Ω. The frequency response covers the range from 2,800 Hz to 20,000 Hz. The sensitivity is rated at 89 dB.

Features
  • Dome Tweeter
  • Diameter: 28 mm
  • Voice Coil: 28 mm
  • Dome Material: Silk
  • Magnet Material: Ferrite
  • Impedance: 4 Ω
  • Power: 60 Watts RMS
  • Sensitivity: 89 dB
  • Frequency Response: 2,800 Hz – 20,000 Hz
Technical Data
  • Fs: 797.20 Hz
  • Max: 10.44 Ω
  • ZF1F2: 5.70
  • Re: 3.70 Ω
  • QMS: 2.94
  • Qes: 2.22
  • Qts: 1.27
  • L10KHz: 0.08 mH
  • Lces: 0.33
  • Cmes: 120.16
  • Res: 4.89
  • Min: 4.14 Ω
  • Avg: 4.49 Ω

Frequently Asked Questions about Opus 28mm

What technical features does the Opus 28mm from Quartorigo have?

The Opus 28mm from Quartorigo features a voice coil with a diameter of 28 mm and uses silk as the diaphragm material, allowing for smooth sound reproduction. The magnet is made of ferrite, known for its stability and performance in audio applications. The nominal impedance is 4 ohms, making it compatible with many amplifiers. With an RMS power of 60 W and a sensitivity of 89 dB, you can expect clear and loud playback from this speaker. The frequency response ranges from 2,800 Hz to 20,000 Hz, ideal for precise reproduction of high frequencies.

What are the dimensions of the Opus 28mm and what does that mean for installation?

The Opus 28mm has a diameter of 28 mm, making it ideal for installation in limited spaces. When installing, it is important to consider the available space both in the vehicle and in the intended application. Due to its compact size, it is versatile and can be integrated into both small speaker enclosures and automotive installations. Ensure that the installation space is sufficient to securely mount the speaker, and pay attention to the environmental conditions, such as installation depth, matching the product dimensions.

How does the ferrite magnet material of the Opus 28mm affect sound quality?

The Opus 28mm uses ferrite as the magnet material, which ensures lasting magnetic performance and is one of the reasons for its powerful and detailed sound. Ferrite magnets are known for their reliability and durability in speaker systems. They provide a strong magnetic field strength that ensures efficient conversion of electrical signals into sound waves. These properties contribute to the clarity and precision of high frequencies. Particularly for the reproduction of instruments and vocals in high ranges, the ferrite material proves to be extremely advantageous.

What are the Thiele-Small parameters of the Opus 28mm and what do they indicate?

The Opus 28mm has specific Thiele-Small parameters that are essential for the characteristics of its sound reproduction. The resonance frequency parameter Fs is at 797.20Hz, indicating the speaker's natural frequency. The electrical quality factor Qes is 2.22, the mechanical quality factor Qms is 2.94, and the total quality factor Qts is at 1.27, which together provide insights into the efficiency and bandwidth of the speaker. The direct current resistance Re measures 3.70Ω, crucial for electrical stability. The mass equivalent value Cmes is 120.16, allowing conclusions to be drawn about the movement ratio of the diaphragm. These parameters help optimize the performance characteristics for specific applications.

What are the advantages of the silk dome of the Opus 28mm?

The silk dome of the Opus 28mm offers several acoustic advantages. Silk is known for its ability to deliver soft yet detailed sounds without being overly aggressive. High frequencies particularly benefit from the smooth resonance capability of the silk dome. This results in a natural and unobtrusive sound profile, which is especially advantageous at higher volumes, as harmonic distortions are minimized. Additionally, silk is resistant to external influences such as moisture, contributing to increased longevity and durability, making it ideal for use in various environments.

How does the impedance of the Opus 28mm behave in audiophile applications?

The Opus 28mm has a nominal impedance of 4 Ohms, making it flexible in audiophile applications. A 4-Ohm impedance allows the speaker to be efficiently operated with a variety of amplifiers without concerns about power loss. Especially in combination with amplifiers designed for low impedances, the Opus 28mm showcases its strengths. Furthermore, audio-optimized installations benefit from the impedance, as this resistance value facilitates adaptation to different crossovers and parallel speaker systems, leading to an improved overall system sound.

How important is the sensitivity of 89 dB in the Opus 28mm?

The sensitivity of 89 dB in the Opus 28mm is a crucial factor for speaker performance, especially when it comes to converting amplifier power into sound pressure. A sensitivity value in this range means that the speaker can produce a relatively high sound level even with low power input. This is particularly advantageous when you are working with lower-powered amplifiers or want to maximize the energy efficiency of your setup. The Opus 28mm thus offers a balanced combination of power and sound fidelity, making it ideal for home theater and music systems that require both volume and detail.

How does the frequency response of the Opus 28mm affect the listening experience?

With a frequency response of 2,800 Hz to 20,000 Hz, the Opus 28mm covers a wide range of audible high frequencies. This is especially relevant for the reproduction of natural sounds and precision in music playback. The upper range up to 20,000 Hz ensures that the finest details and highs, such as cymbals or hi-hats, are preserved in their clarity. The lower cutoff at 2,800 Hz supports integration with other speakers responsible for the lower frequency ranges, such as subwoofers, creating a balanced and full sound image.

What role does the RMS power of 60 W play in using the Opus 28mm?

The RMS power of 60 W is a key feature of the Opus 28mm that describes its handling of continuous loads. The RMS value indicates how much continuous power the speaker can handle without damage. With a power rating of 60 W, the Opus 28mm is suitable for applications that require moderate to high volume levels without compromising sound quality. It is important to consider this specification to ensure that the speaker operates in harmony with the amplifier, minimizing distortion and increasing lifespan.

How do I integrate the Opus 28mm into my audio system?

To integrate the Opus 28mm into your audio system, you should first consider the dimensions of 28 mm and ensure that the mounting space is sufficient. The installation requires secure fastening to minimize vibrations and optimally transmit sound. Connect the speaker to an amplifier that supports a 4-ohm impedance to avoid compatibility issues. Make sure to place the speaker in the optimal acoustic environment, e.g., aimed at the listening position. This integration ensures that you experience the full power and clarity of the Opus 28mm.

Manufacturer information/responsible person

Quartorigo

Via Roma 68/A

62100 Macerata (MC) | Italy

info@quartorigo.com

+39.0733.262025