New Old Stock
6-1/2 inch Octagonal Standard Loudspeaker AD7091/ X4
Overzicht- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Material
- Metal case
- from Radiomuseum.org
- Model: 6-1/2 inch Octagonal Standard Loudspeaker AD7091 /M4 /M8 /M800 - Philips; Eindhoven tubes
- Dimensions (WHD)
- 155.2 x 165.6 x 43.5 mm / 6.1 x 6.5 x 1.7 inch
- Notes
Philips 6-½ inch Octagonal Standard Loudspeaker type AD7091 /M
Available versions:
- /M4: Z= 4 Ω @ 105 Hz
- /M8: Z= 8 Ω @ 115 Hz
- /M800: Z= 800 Ω @ 105 Hz
- Net weight (2.2 lb = 1 kg)
- 0.220 kg / 0 lb 7.8 oz (0.485 lb)