DJ DJ Equipment and Hardware

Question 1

What is the primary function of a DJ mixer's crossfader?

Accepted Answer

Blend audio between two channels

Answer

The crossfader blends audio signals between two channels, allowing a DJ to transition smoothly from one track to another.

Question 2

Which turntable platter type uses a motor directly connected to the platter spindle?

Accepted Answer

Direct-drive

Answer

Direct-drive turntables connect the motor directly to the platter, providing faster start-up torque favored by scratch DJs.

Question 3

What does the 'gain' knob on a DJ mixer control?

Accepted Answer

Input signal level for a channel

Answer

The gain knob adjusts the input signal level for a specific channel, allowing the DJ to match levels between different tracks.

Question 4

What is the standard phono output impedance for DJ turntables?

Accepted Answer

47k ohms (load)

Answer

Phono inputs present a 47k ohm load impedance, which is the standard for MM cartridges used on DJ turntables.

Question 5

What does 'platter weight' affect on a direct-drive turntable?

Accepted Answer

Rotational stability and wow/flutter

Answer

A heavier platter increases rotational inertia, improving stability and reducing wow and flutter during playback.

DJ - Mixing Practice Test