ALTEC LANSING 875A/2875A Granada
875A : Price unknown (1 unit, circa 1975)
2875A : Price unknown (1 unit, 1970 release)
Commentary
This speaker system is slightly smaller than 873A Barcelona.
A 38 cm cone type woofer is installed in the low range.
This unit was newly developed in compliance with 411-8A and uses a 7.5 cm diameter voice coil and a strong magnetic circuit weighing 7.8 kg.
A horn type unit using a driver 807 to 8 a and a horn 811B is mounted in the high range.
N-801-8A is used for the network.
The enclosure is sealed and a grating grill is used at the front.
The exterior has a walnut finish.
The 2875A incorporates a 875A electronic crossover bi-amplifier on the back panel of the 770A and is used by connecting the output of the preamplifier with a pin jack.
Model Rating
| Method | 2-Way, 2-Speaker, Sealed Type, Floor Type | ||
| Format | 875A | 2875A | |
| Units Used | Low band | 38 cm cone type (411 type) | 38 cm cone type (411 type) |
| High pass | Horn Type (807-8A + 811B) | Horn Type (807-8A + 811B) | |
| Network | N801-8A | - | |
| Amp | - | 770A | |
| Impedance | 8 Ω | - | |
| Frequency characteristic | 20 Hz to 20 kHz | ||
| Allowable input | 60W | - | |
| Crossover frequency | 800Hz | 800Hz(12dBoct) | |
| Input sensitivity | - | 0.5Vrms | |
| Amplifier output | - | Low band : 60 wrms High pass : 30 Wrms |
|
| Hum noise level | - | -80dB or less | |
| Gain control | - | 26dB | |
| External dimensions | Width 700x Height 760x Depth 610 mm | ||
| Weight | - | - | |
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