Active + Passive , Full-range reference system , 2.2 stereo
Terra + Gravity System (Nocturne)
Feel the weight of every decision.
Signal active
System Response
±1.5dB 30Hz–30kHz
LF Extension
F6 at 20Hz
System SPL
112dB @ 1kHz
LF SPL
106dB @ 50Hz
Configuration
2.2 stereo
Product Photography
Built like a
precision instrument.
Technical Foundation
Not two products. One system.
<p>Terra reaches 40Hz linear and stops. Not because the engineering ran out, but because a near-field monitor has physical limits. Gravity picks up exactly where Terra leaves off, extending the system to 30Hz linear without introducing a single additional control point, crossover adjustment, or phase alignment decision.</p>
<p>The result is a fully realized, full-range loudspeaker system for professionals who demand accuracy at every frequency. Not a monitor with a subwoofer bolted on. A system that was designed as one from the beginning.</p>
<div class="story-highlight"><p>Gravity is passive. Power, DSP, crossover, and calibration all come from Terra's rear panel. One system, one control point, one calibration update path. No level matching, no separate bass management processor, no phase guesswork.</p></div>
System Integration
One rear panel. One system.
<p>Gravity draws power and signal from Terra's rear panel. There is no external amplifier to match, no bass management crossover to configure, no time alignment to guess at. Terra's DSP controls the entire system, the crossover, the calibration, the over-the-air updates. Add Gravity and the system extends. Nothing else changes.</p>
<p>This is not a convenience feature. It is the reason the two behave as one. There is no seam at the crossover because there is no independent system on either side of it.</p>
Performance
30Hz linear. 112dB. ±1.5dB end to end.
<p>The integrated system delivers ±1.5dB frequency response from 30Hz to 30kHz, F6 at 20Hz, and 112dB continuous SPL at 1kHz. Phase coherence is maintained across the full range because the crossover is handled by Terra's DSP, not a separate analog network.</p>
<p>For film, game audio, immersive formats, and rooms where the low end is part of the work, this is the system. For everything else, Terra is already enough.</p>
Full Specifications
Every number,
verified.
System Performance
Frequency Response
±1.5dB, 30Hz–30kHz
LF Extension
F1 at 30Hz, F6 at 20Hz
Phase Response
±15°, 30Hz–30kHz
Max SPL @ 1m
112dB @ 1kHz
Max LF SPL @ 1m
106dB @ 50Hz
Integration Crossover
80Hz, zero-phase LR4 digital
Configuration
2.2 stereo
System Performance
Frequency Response
±1.5dB, 30Hz–30kHz
LF Extension
F1 at 30Hz, F6 at 20Hz
Phase Response
±15°, 30Hz–30kHz
Max SPL @ 1m
112dB @ 1kHz
Max LF SPL @ 1m
106dB @ 50Hz
Integration Crossover
80Hz, zero-phase LR4 digital
Configuration
2.2 stereo
System Performance
Frequency Response
±1.5dB, 30Hz–30kHz
LF Extension
F1 at 30Hz, F6 at 20Hz
Phase Response
±15°, 30Hz–30kHz
Max SPL @ 1m
112dB @ 1kHz
Max LF SPL @ 1m
106dB @ 50Hz
Integration Crossover
80Hz, zero-phase LR4 digital
Configuration
2.2 stereo
System Performance
Frequency Response
±1.5dB, 30Hz–30kHz
LF Extension
F1 at 30Hz, F6 at 20Hz
Phase Response
±15°, 30Hz–30kHz
Max SPL @ 1m
112dB @ 1kHz
Max LF SPL @ 1m
106dB @ 50Hz
Integration Crossover
80Hz, zero-phase LR4 digital
Configuration
2.2 stereo
System Performance
Frequency Response
±1.5dB, 30Hz–30kHz
LF Extension
F1 at 30Hz, F6 at 20Hz
Phase Response
±15°, 30Hz–30kHz
Max SPL @ 1m
112dB @ 1kHz
Max LF SPL @ 1m
106dB @ 50Hz
Integration Crossover
80Hz, zero-phase LR4 digital
Configuration
2.2 stereo
System Performance
Frequency Response
±1.5dB, 30Hz–30kHz
LF Extension
F1 at 30Hz, F6 at 20Hz
Phase Response
±15°, 30Hz–30kHz
Max SPL @ 1m
112dB @ 1kHz
Max LF SPL @ 1m
106dB @ 50Hz
Integration Crossover
80Hz, zero-phase LR4 digital
Configuration
2.2 stereo
System Performance
Frequency Response
±1.5dB, 30Hz–30kHz
LF Extension
F1 at 30Hz, F6 at 20Hz
Phase Response
±15°, 30Hz–30kHz
Max SPL @ 1m
112dB @ 1kHz
Max LF SPL @ 1m
106dB @ 50Hz
Integration Crossover
80Hz, zero-phase LR4 digital
Configuration
2.2 stereo
Terra Electronics
DSP
ADSP-21569 SHARC+
DAC
AKM AK4493SEQ
Amplification
Hypex NcoreX (LF, Mid, HF + Gravity)
Control
WiFi (ESP32), OTA calibration
Terra Electronics
DSP
ADSP-21569 SHARC+
DAC
AKM AK4493SEQ
Amplification
Hypex NcoreX (LF, Mid, HF + Gravity)
Control
WiFi (ESP32), OTA calibration
Terra Electronics
DSP
ADSP-21569 SHARC+
DAC
AKM AK4493SEQ
Amplification
Hypex NcoreX (LF, Mid, HF + Gravity)
Control
WiFi (ESP32), OTA calibration
Terra Electronics
DSP
ADSP-21569 SHARC+
DAC
AKM AK4493SEQ
Amplification
Hypex NcoreX (LF, Mid, HF + Gravity)
Control
WiFi (ESP32), OTA calibration
Terra Drivers
Coaxial Mid/HF
18cm custom TPCD, 3rd gen
Low Frequency
18cm PuriFi PTT6.5W96-08
Internal crossovers
200Hz and 2kHz zero-phase LR4
Terra Drivers
Coaxial Mid/HF
18cm custom TPCD, 3rd gen
Low Frequency
18cm PuriFi PTT6.5W96-08
Internal crossovers
200Hz and 2kHz zero-phase LR4
Terra Drivers
Coaxial Mid/HF
18cm custom TPCD, 3rd gen
Low Frequency
18cm PuriFi PTT6.5W96-08
Internal crossovers
200Hz and 2kHz zero-phase LR4
Gravity Subwoofer
Driver (per unit)
26cm PuriFi PTT10.0W96-08
Electronics
Passive, Terra-powered
Dimensions
305 x 215 x 305mm, 20.4kg per unit
Mounting
200x200 VESA (M6)
Gravity Subwoofer
Driver (per unit)
26cm PuriFi PTT10.0W96-08
Electronics
Passive, Terra-powered
Dimensions
305 x 215 x 305mm, 20.4kg per unit
Mounting
200x200 VESA (M6)
Gravity Subwoofer
Driver (per unit)
26cm PuriFi PTT10.0W96-08
Electronics
Passive, Terra-powered
Dimensions
305 x 215 x 305mm, 20.4kg per unit
Mounting
200x200 VESA (M6)
Gravity Subwoofer
Driver (per unit)
26cm PuriFi PTT10.0W96-08
Electronics
Passive, Terra-powered
Dimensions
305 x 215 x 305mm, 20.4kg per unit
Mounting
200x200 VESA (M6)
Connectivity
Analog Input
XLR balanced
Digital Input
AES/EBU
Network (optional)
Dante Pro S1
Connectivity
Analog Input
XLR balanced
Digital Input
AES/EBU
Network (optional)
Dante Pro S1
Connectivity
Analog Input
XLR balanced
Digital Input
AES/EBU
Network (optional)
Dante Pro S1
Get Terra
Your next great project
starts here.
Precision. Not Prestige.
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