Sigberg Audio Manta Specifications and Review

Last updated: August 21, 2026

The Sigberg Audio Manta ranks #48 out of 49 total Large Size Powered Bookshelf Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.

Brand: Sigberg Audio

Prices on this page were last checked August 21, 2026 at 5:30 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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#48 Sigberg Audio Manta: $32,220.00 for the full system (2 speakers + 2 dedicated subwoofers, built to order) Sigberg Audio eBay

Pros: The most consistent directivity of Sigberg’s three active monitors, a spinorama directivity index standard deviation of 2.50 versus 3.19-3.27 for the SBS.1 and SBS Gen 2, meaning less off-axis “wobble” as frequency rises. Also the flattest listening-window response of the three (nbd_listening_window 0.386). Cardioid vented midrange chamber reduces side-wall reflections down to about 80Hz. 4-way active design with a dedicated 12” midbass and a 5.5” coaxial mid/tweeter, each driver individually amplified and DSP-controlled, plus a 9-band parametric EQ with factory presets and full analog/digital connectivity.

Cons: The weakest on-axis linearity of the three Sigberg monitors (nbd_on_axis 0.486) and the lowest in-room smoothness (sm_pred_in_room 0.262), giving it the lowest spinorama preference score of the lineup (pref_score 2.48, versus 2.97 for the SBS.1 and 5.78 for the SBS Gen 2) independent of bass extension. Only “medium”-quality 2023 prototype measurement data on file. Requires two dedicated Sigberg subwoofers, sold separately as part of the system price, to reach its rated 18Hz bass extension. Extremely expensive as a complete system.

How it compares: Just above it: Emotiva Airmotiv 6s - $31820 cheaper, 390W less output power. Just below it: Ocean Way Audio HR5 - $29421 cheaper, 385W less output power.

AppNo
Bass Extension (-3dB)18Hz (manufacturer, with companion subwoofers)
BluetoothNo
CountryNorway
DSPYes
Dimensions23.6"H x 14.2"W x 13.8"D (600 x 360 x 350 mm)
Drivers12" midbass, 5.5" coaxial mid/tweeter with 1" silk dome
EQYes (9-band parametric, factory presets)
Enclosuresealed
InputsXLR, RCA, Optical, Coaxial/SPDIF, AES
Max SPL122dB
Measurement SourceManufacturer
Output Power600W per speaker
Weight55.1 lbs / 25.0 kg each

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