Types of EQ

The Music Telegraph | Text 2018/12/28 [14:48]

Types of EQ

The Music Telegraph| 입력 : 2018/12/28 [14:48]

▲ EQ (Equalizer)

 

 


Types of Equalizers

 

 

Equalizer (EQ):

- Frequency selective amplifier

 

 

Controls:

 

1. Level Control 

 

a) Continuously variable (also called 'sweepable'):

- You pick any amount of boost or cut

 

b) Stepped (also called 'detent'):

- This will have click stops (detents) at all listed levels

 

 

2. Frequency select

- can be continuously variable or stepped

 

 

 

 

Console EQ

 

1. Set frequency with Level controls

a) 2-band with High Frequency and Low Frequency (Shelving EQ):

- HF @ 10kHz

- LF @ 100 Hz

 

b) 3-band:

- LF & HF shelving EQ @ 100Hz & 10kHz and Mid Frequency  (MF) @ 1 kHz (Peaking EQ)

 

 

2. 3-band with set LF + HF (100Hz + 10kHz) shelving and MF with Frequency select between 200 Hz ~ 63 kHz (Peaking EQ)

 

 

3. 3-band with frequency selects in all bands LF & HF are shelving, MF is Peaking EQ

 

 

4. 4-band EQ with Frequency selects in all bands:

- LF + HF = Shelving

- LM + HM = Peaking

 

 

5. 4-band EQ with Frequency selects in all bands:

- LF & HF: Shelving switchable to Peaking EQ

- LM & MH: Peaking EQ with ‘Q’ (Bandwidth control)

▲ Console EQ (4-band EQ)


 

 

 

 

Parametric EQ

- 3 to 9 band EQ

- All Peaking

- Either continuously controlled or stepped

- has 

a) Level controls (+/- 15dB)

b) Frequency selects

c) Q controls (bandwidth)

▲ Parametric EQ (5-band EQ)   



 

 

 

 

Graphic EQ

- 3 to 31 bands

- All Peaking EQ

- All set Frequency (International standard: +/-15 dB level controls)

▲ Graphic EQ (30-band EQ)



 

 

 

 

Cut-Frequency EQ (Cheaper EQ)

- Level control between 250 Hz & 1 kHz

- Has 3 sections: Bass | Mid (500Hz) | Treble

 

▲ 3-band Cut-Frequency EQ



 

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