Short answer: the Genelec 8331A. It ranks #1 of 100 powered bookshelf speakers by sound quality (rated 4.8/5) at $5,750 and is still sold new; the IK Multimedia iLoud MTM ranks #30 (rated 4.1/5) and is discontinued, so it is only an option used. The IK Multimedia iLoud MTM’s replacement, the IK Multimedia iLoud MTM MKII, is rated 4.2/5.
Why pick the IK Multimedia iLoud MTM: ASR’s measurements of the original MTM give scores of 4.07 standalone and 6.26 with an ideal subwoofer, a 2.4dB midrange response span and a -3dB point around 53Hz. The tradeoff: The MTM arrangement makes listening height and orientation important, while bass below the low-50Hz region still needs support.
The Genelec 8331A is the better-sounding option. Erin’s Klippel measurements support its reference-monitor credentials: a 1.4dB response span from 300Hz to 5kHz, low listening-window and predicted-room irregularity, and preference scores of 6.57 standalone and 8.51 with an ideal subwoofer. The tradeoff: Expensive, with studio-oriented XLR connectivity rather than consumer streaming.
Buy the Genelec 8331A. It is rated higher for sound quality; the IK Multimedia iLoud MTM is no longer sold new.
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Specifications Side By Side
| IK Multimedia iLoud MTM | Genelec 8331A | |
|---|---|---|
| Price | $1,600 per pair Discontinued | $5,750 per pair |
| Ranked | #30 of 100 in Medium Size Powered Bookshelf Speakers | #1 of 100 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 50Hz (measured, Audio Science Review) | 49Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 40Hz (measured, Audio Science Review) | 39Hz (measured, Erin’s Audio Corner) |
| Dimensions | 10.4”H x 5.1”W x 6.3”D (264.2 x 129.5 x 160 mm) | 12”H x 7.4”W x 8.3”D (305 x 189 x 212 mm) |
| Frequency Response | 50 Hz - 24 kHz (-3dB) (Manufacturer specified) | 45Hz - 37kHz (-6dB) (Manufacturer specified) |
| Inputs | XLR | XLR, AES/EBU |
| Weight | 5.5 lbs (2.5 kg) | 14.8 lbs (6.7kg) each |
| Drivers | 2x 3.5” (89mm) woofers | Dual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter |
| App | No | - |
| Bluetooth | No | No |
| EQ | Yes (Room adjustment) | - |
| Amplifier Power | 100w Per Speaker | 72W LF + 36W MF + 36W HF |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | Yes |
| Aux Input | No | No |
| Maximum SPL | - | 100dB at 3m before protection (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | - | 6.57 |
| Spinorama Preference Score with Perfect Sub | - | 8.51 |
Related Speaker Comparisons
More worthwhile head-to-heads for Genelec 8331A:
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Prices on this page were last checked October 9, 2026 at 8:01 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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The Two Speakers In Full
IK Multimedia iLoud MTM: $1,600 per pair Discontinued Amazon eBay
Newer model: the IK Multimedia iLoud MTM MKII, ranked higher, rated 4.2/5.
Pros: ASR’s measurements of the original MTM give scores of 4.07 standalone and 6.26 with an ideal subwoofer, a 2.4dB midrange response span and a -3dB point around 53Hz. The small cabinet, balanced input and calibration capability make it useful for close listening where larger monitors would be impractical. Measured bass extension of 50Hz (-3dB).
Cons: The MTM arrangement makes listening height and orientation important, while bass below the low-50Hz region still needs support. The native response is not as smooth as the best compact reference monitors. Exact compression ceilings and correction examples from the MKII review should not be assigned to this original version; its score describes tonal response, not maximum clean volume. Treble runs about 3dB hot on-axis; the reviewer found the rear -3dB switch too aggressive and preferred about -1.5dB of external EQ. Discontinued.
Full IK Multimedia iLoud MTM review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 100w Per Speaker |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 40Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 50Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 10.4”H x 5.1”W x 6.3”D (264.2 x 129.5 x 160 mm) |
| Drivers | 2x 3.5” (89mm) woofers |
| EQ | Yes (Room adjustment) |
| Frequency Response | 50 Hz - 24 kHz (-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR |
| Optical Input | No |
| RCA Input | No |
| TRS Input | No |
| USB Input | No |
| Weight | 5.5 lbs (2.5 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Audio Science Review Measurements More from Audio Science Review →
- DSAUDIO.review: IK Multimedia iLoud MTM vs Genelec 8020D Sound & Frequency Response Comparison More from DSAUDIOreview →
- DSAUDIOreview: IK Multimedia iLoud MTM vs iLoud Micro Sound & Frequency Response Comparison
- DSAUDIO.review: IK Multimedia iLoud MTM vs KRK Rokit 5 G4 Sound & Frequency Response Comparison
- DSAUDIO.review: IK Multimedia iLoud MTM vs Edifier S3000 Pro Sound & Frequency Response Comparison
- DSAUDIO.review: Neumann KH80 DSP vs IK Multimedia iLoud MTM Sound & Frequency Response Comparison
- DSAUDIO.review: Adam Audio A3X vs IK Multimedia iLoud MTM Sound & Frequency Response Comparison
- DSAUDIO.review: Yamaha HS8 vs IK Multimedia iLoud MTM Sound & Frequency Response Comparison
- Audio Science Review Measurements (spinorama.org)
- Head-to-Head Comparisons
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- IK Multimedia iLoud MTM vs Kali Audio IN-5
- IK Multimedia iLoud MTM vs Airpulse A100
- IK Multimedia iLoud MTM vs KEF LSX II LT
- IK Multimedia iLoud MTM vs Kali Audio SM-5
- IK Multimedia iLoud MTM vs Audioengine A5+ Classic
- IK Multimedia iLoud MTM vs HEDD Type 05 A-CORE
- IK Multimedia iLoud MTM vs Adam Audio T5V
- See all 47 comparisons
Genelec 8331A: $5,750 per pair B&H Photo Video eBay
Same family: the Genelec 8341A (larger bookshelf, rated 4.8/5), the Genelec 8351B (larger bookshelf, rated 4.8/5), the Genelec 8361A (larger bookshelf, rated 4.8/5) and the Genelec 8381A (floorstanding, estimated 4.9/5).
Pros: Erin’s Klippel measurements support its reference-monitor credentials: a 1.4dB response span from 300Hz to 5kHz, low listening-window and predicted-room irregularity, and preference scores of 6.57 standalone and 8.51 with an ideal subwoofer. The coaxial mid/tweeter and concealed woofers maintain coherent radiation as listening position changes. Bass reaches -3dB around 48Hz, and GLM adds level, delay and room-response calibration. Measured bass extension of 49Hz (-3dB).
Cons: Expensive, with studio-oriented XLR connectivity rather than consumer streaming. The compact woofers still limit deep-bass output, and the review reports protection muting when pushed beyond its operating range. GLM calibration hardware is an additional purchase. Its excellent tonal score does not remove the need for a subwoofer or larger monitor at demanding levels.
Full Genelec 8331A review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 72W LF + 36W MF + 36W HF |
| Aux Input | No |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 49Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 12”H x 7.4”W x 8.3”D (305 x 189 x 212 mm) |
| Drivers | Dual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter |
| Frequency Response | 45Hz - 37kHz (-6dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, AES/EBU |
| Maximum SPL | 100dB at 3m before protection (measured, Erin’s Audio Corner) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 6.57 |
| Spinorama Preference Score with Perfect Sub | 8.51 |
| TRS Input | No |
| USB Input | No |
| Weight | 14.8 lbs (6.7kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons