Korena
Product detailSKU #1274228076373

DrawmerSP2120 Speaker Protector

Drawmer
Drawmer SP2120 Speaker Protector

Independent shopping perspective

The Korena take

Balanced line-level speaker protection for permanent install and studio systems. For anyone responsible for amps and drivers they cannot afford to replace.

Drawmer SP2120 Speaker Protector product detail
Product studyDrawmer SP2120 Speaker Protector

Strong match

Who this is for

  • Fixed installs where a guest DJ drives the system unsupervised
  • Studio main monitors fed by separate power amps
  • Venues where drivers are expensive or awkward to replace

Consider the trade-offs

When to look elsewhere

  • Bedroom setups with powered monitors and built-in limiting
  • Players wanting tone shaping or coloration in the chain
  • Anyone under budget pressure protecting inexpensive speakers

What matters in use

The specifications, translated

Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01

+27dBu maximum input

Handles hot console outputs without clipping its own front end, so it stays clean right up to where the amps give up.

Detail 02

Output level variable from off to +14dBu

Doubles as your system gain trim. You can set amp drive here rather than at the amp panel.

Detail 03

30K ohm input, 100 ohm output impedance

Bridges any line source without loading it, and drives long balanced runs to amp racks without level loss.

Detail 04

Noise at -99dB, unity gain referenced to +4dBu

Sits below the noise floor of the amps it feeds, so it adds no audible hiss to a quiet room.

Detail 05

Common mode rejection above 40dB, 22Hz to 22kHz

Rejects hum picked up on long cable runs between the rack and remote amp locations.

Detail 06

Crosstalk better than 90dB at 20kHz

Channels stay independent at the top end, so stereo imaging and crossover bands do not smear into each other.

Final check

Know before you order

  1. 01Goes between console and power amps, not between amp and speakers
  2. 02Protection depends on setting thresholds to your actual driver limits
  3. 03Balanced connections and cabling are not included; plan the rack wiring

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01Where does this go in the signal chain?

Line level, after your console or processor and before the power amps. It works on the signal feeding the amps, never on the amplified output going to drivers.

02Does it replace the limiter in my amps?

It gives you protection set independently of the amp, which matters when amps are shared, swapped, or driven by people who do not own the system.

03Will it color the sound?

The noise, crosstalk and common mode figures are built for transparency. Audible change should only happen when it is actually acting to hold the system back.

04Can I use it with a crossover?

Yes. Put it after the crossover so each band is protected against its own driver limits, since a tweeter and a woofer fail at very different levels.

Reference

Full specifications

The complete catalog record, organized around the decisions musicians make when comparing gear.

4 detailsConnections & power
Input Impedance
30K Ohms
Output Impedance
100 Ohms
Max Input Level
+27dBu
Output Level
Variable. Infinity to +14dBu
4 detailsOther
Balance
>40dB (22Hz-22kHz)
Crosstalk
>90dB at 20kHz
Noise
-99dB (Unity gain ref +4dBu/22Hz-22kHz)
Cmr
>40dB (22Hz-22kHz)