The Grimm Audio LS1c + SB1 is rated 4.4/5 for sound quality, #9 of 15 Large Size Powered Floorstanding Speakers. See all Powered Home rankings for every top pick.
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#9 Grimm Audio LS1c + SB1: $43,440 per pair The Listening Room $43,440 eBay
Pros: A complete active monitor system with matching subwoofers, very wide dispersion, accurate sound and low distortion. Independently measured by Audio Science Review as a complete system with its SB1 subwoofers, with 0.83 listening-window smoothness and 0.38dB average on-axis deviation. ASR found the widest horizontal dispersion it had measured, very clean decay and distortion that stays low at 86 and 96dB. The -10dB point sits near 28.9Hz, and the SB1’s motional feedback controls the 10-inch woofer. It is a complete active system with Hypex NCore amplification, DSP crossovers and analog, AES/EBU and USB inputs. Measured bass extension of 28.9Hz (-10dB).
Cons: The standard preference score is only 5.73, rising to 7.54 with an ideal subwoofer, because spinorama puts the system’s -6dB point at 45.4Hz despite the subwoofers. At $43440 per pair with the SB1s, it costs far more than active systems that score higher. ASR measured a maximum of about 105dB, modest output for the price. Custom finishes add weeks to the dealer lead time.
Is the Grimm Audio LS1c + SB1 right for you?
Buy it if
- you want measurably neutral sound (preference score 7.5 with a subwoofer).
Skip it if
- you want to stream from a phone without an adapter: it has no Bluetooth.
- you need to move it often (54 kg each).
- you want the best value: the higher-rated KEF LS60 costs about $37,440 less.
| Released | 2024 (2 years ago) |
|---|---|
| AES Input | Yes |
| Amplifier Power | 240W woofer and 100W tweeter per speaker (Hypex NCore); 400W per SB1 subwoofer |
| Bass Extension (-10dB) | approximately 28.9Hz (measured, spinorama.org ASR data) |
| Bluetooth | No |
| Coaxial Input | No |
| Country | Made in the Netherlands |
| Dimensions | 45.3”H x 20.5”W x 6.3”D (1150 x 521 x 160 mm) |
| Drivers | TPCD carbon composite tweeter (Seas); 8” Seas midrange-woofer; 10” up-firing SB1 subwoofer |
| Enclosure | Active 2-way monitor on stand with integrated SB1 sealed subwoofer (3-way system) |
| Frequency Response | 20Hz-27kHz +0.5/-3dB with SB1 (manufacturer) |
| HDMI Input | No |
| Inputs | Analog XLR, 3x AES/EBU, USB |
| Maximum SPL | 105dB (measured by ASR) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.73 |
| Spinorama Preference Score with Perfect Sub | 7.54 |
| USB Input | Yes |
| Weight | 119 lbs (54 kg) each with SB1 |
| XLR Input | Yes |
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