The QRI-401 is a compact full-range loudspeaker from the Pro-Sound “QRI” 400 series, designed for small-scale sound reinforcement in acoustically demanding spaces. It is ideally suited for speech and background music applications in restaurants, conference and training rooms, churches, museums, and smaller venues or theaters.

Equipped with a high-performance 4˝ full-range driver, the QRI-401 delivers natural sound reproduction with silky smooth highs and a transparent overall tonal character. With its linear frequency response from 150 Hz to 20 kHz, it is optimized for moderate sound pressure levels. Its passive design and 16-ohm nominal impedance offer great flexibility in integration with other systems.

The speaker is suitable for both horizontal and vertical mounting and comes standard with a sturdy L-bracket wall mount. Its low-feedback characteristics and radial dispersion pattern of 80° make it an excellent choice for fixed installations. Optional custom RAL color finishes are available to seamlessly blend into any interior environment.

Technical Data:

Speaker Type:

• Passive, Full-range

Power Handling (Peak/RMS):

• 100 W / 50 W

Bass Driver:

• 1 x 4˝ full-range

Horn Driver:

• –

Stand Mount:

• No

Sensitivity (1W/1m):

• 87 dB

Max SPL:

• 106 dB

Frequency Range (±3 dB):

• 150 - 20,000 Hz

Nominal Impedance:

• 16 Ohms

Speaker Connections:

• 2 x Speakon, 2 x Phoenix (In/Out)

Coverage Angle (H x V):

• 80° radial

Dimensions (H x W x D):

• 125 x 125 x 145 mm

Protection Class:

• IP 44

Weight, Color:

• 1.5 kg; White

Accessories:

Wall Mount:

• Includes L-bracket for wall mounting