Radian LM8K

Bredbåndet båndelement

Bredbåndet båndelement med følsomhet på 95 dB. 150° (lukket kasse) eller 120° (dipol) horisontal spredning og 30° vertikal spredning. Laveste anbefalte delefrekvens med 12 dB oktav steilhet er 250 Hz.

Produkt Pris Kategori
Radian LM8K kr 1980 Båndelement

Nominal size 8”/200mm
– standard Power handling, AES¹ 60 W
Long-term maximum power, IEC¹ 100 W
Short-term maximum power, IEC¹ 200 W
Sensitivity²95 dB
Effective frequency range³ 250 Hz – 20 kHz
Horizontal coverage angle,closed back ⁴150 deg Horizontal coverage angle, dipole ( open back)⁴ 120 deg
Vertical coverage angle⁴ 30 deg
Diaphragm Kapton
Current carrying conductors Aluminum foil
Displacement limit for VC 0.7 mm
Minimum impedance = Re ( inductive component is absent) Impedance is predominantly constant @ Re=7 Ω
Magnet material Neodymium
Driver plates material Powder coated steel
Recommended minimum XO point 12 dB/Oct. 250 Hz, 6 dB/Oct. 500 Hz
Net weight 0.78 kg (1.72 lb.)

1. AES refers to AES2-1984 Rev.2003. IEC refers to IEC 60268-5. AES power handling tested using IEC60268-1 noise signal for duration of 2 hours in effective frequency range in free air.
2. Frequency response and sensitivity of LM8K as an open back planar ribbon transducer is highly dependent on its acoustic alignment. Specified number is an average of 1W/1m data within 500Hz- 5 kHz range. Measured at 1m at 2.83V in simulated free field conditions. Various acoustic alignments and angles are indicated in the legend below the response graphs.
3. Highly dependent on acoustic alignment and application. Maximumrecommended LF extension is 250Hz for speech reproduction applications. Measured in accordance with IEC 60268-5, defined at -10 dB below SPL averaged in 250 Hz- 5 kHz range.
4. Coverage angles (especially in horizontal plane) dependent on acoustic alignment of LM8K (closed back vs. dipole). Refer to horizontal directivity data for both cases. No baffle was used for dipole directivity measurements. Defined at -6dB, averaged in 500 Hz- 8 kHz range. Vertical coverage angle is estimated as average within 2 kHz- 8 kHz range as applied for wide band speech applications. For applications in MF band refer to directivity data.