Leslie 251 Organ Speaker Cabinet

L

e

s

l

i

e

2

5

1

O

r

g

a

n

S

p

e

a

k

e

r

C

a

b

i

n

e

t

The Leslie 251 is a further development of the Model 51, but unlike the latter it is equipped with low-speed motors and a new bass speaker, but without the rotor stop option. Like the predecessor model 51, it was designed for connection to Conn organs, but can be connected to any other organ with the appropriate installation kits. In the course of its construction, the second audio channel developed more and more into a reverb channel via which the organ's reverb signal was transmitted. This is why the 251 is considered the ideal sound cabinet for the Hammond A-100 and M-100 organs, both of which have their own reverb effect. It produces an identical sound to the 122, 145 and 147 models.

The Leslie 251 has rotors for bass and treble with fast and slow speeds. The main channel amplifier with 40 watts is equipped with 2x 6550 power tubes, the second channel amplifier with 2 x 6973 power tubes. The main channel speaker consists of a Jensen 3/4″ V21 tweeter and a Jensen 15″ C15L bass speaker, each with 16 ohms. The crossover frequency is 800 Hz. The second channel has two 6×9″ stationary full-range speakers with 16 ohms. The connection is a 6-pin connection. (Source: Amazona)