ATC SCM20PSLT is a 2-way Passive Sealed Floor-standing speaker by ATC. It was released in 2018. It features a Tweeter and 1 x " Woofer. ATC lists the drivers as 1 x 150mm/6", SB75-150SL 8Ω; 1 x 25mm/1", SH25-76S 6Ω. The speaker has a frequency range of 55-25k Hz and a sensitivity of 85 dB. ATC SCM20PSLT has an MSRP of 7999$ per pair.
Room Size Suitability
The size of the room where you plan to use the ATC SCM20PSLT is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)
Frequency Response of the ATC SCM20PSLT Speaker
ATC SCM20PSLT has a Frequency response range of 55-25k Hz and Power Range of 75W-300W watts. With a minimum frequency of 55 Hz, SCM20PSLT delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.
Here we have a comparison of how SCM20PSLT's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Floor-standing Speakers
Thinking about a subwoofer for the ATC SCM20PSLT?
Among the speakers in our database with a max MSRP price of 10000$ (Pair), these are the 5 Passive Floor-standing speakers that have the deeper bass levels than the ATC SCM20PSLT's 55Hz:
Crossover frequency of the ATC SCM20PSLT?
The crossover frequency of the SCM20PSLT is set to 2.2kHz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.
Impedance and Sensitivity
ATC SCM20PSLT's nominal impedance level is
8 ohms but can go down to as low as
5.5 ohms, and has a sensitivity of
85 dB.
Sensitivity
Floor-standing Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so ATC SCM20PSLT is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 85 dB, ATC SCM20PSLT is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps. Work out how loud the ATC SCM20PSLT plays in your room →
Minimum Impedance of the ATC SCM20PSLT
Even though the nominal impedance of the SCM20PSLT is 8 ohms, the minimum impedance level of this speaker according to ATC is 5.5 ohms ATC SCM20PSLT so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.
What amplifier does the ATC SCM20PSLT need?
At normal listening levels in a medium room, about
24–300 W
per channel into 8 ohms.
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Input Type
SCM20PSLT features 1 x Rear Panel Mounted Female XLR, pin 2 hot type connectors.
Work out what gauge speaker cable this run needs →
ATC SCM20PSLT External Dimensions and Weight
ATC SCM20PSLT has external dimensions of (Height x Width x Depth) .
Work out where they should sit in the room →
Cabinet type and Materials
ATC SCM20PSLT has a
Sealed type cabinet.
Does the ATC SCM20PSLT come with a Grille?
SCM20PSLT comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.
Recommended Accessories
Here is a list of accessories that we think you may need for the ATC SCM20PSLT.
Official Product Page
Official manufacturer's product page for the ATC SCM20PSLT speaker can be found below:
Official Product Page for ATC SCM20PSLT