IK Multimedia iLoud MTM vs JBL One Series 104

Last updated: August 24, 2026

Short answer: the IK Multimedia iLoud MTM for better sound quality, the JBL One Series 104 for the lower price. The IK Multimedia iLoud MTM ranks #21 of 60 powered bookshelf speakers at $800. The JBL One Series 104 ranks #58 at $129, $671 cheaper.

What the IK Multimedia iLoud MTM offers: Compact MTM layout (two 3.5” midwoofers flanking a 1” tweeter) powered monitor with 100W per speaker and XLR input, well-suited to desktop/nearfield use with great linearity for mixing or mastering. Includes a genuinely effective auto-room-correction microphone that resolved specific room resonance peaks (150Hz and 220Hz in testing), making the midrange sound noticeably more lifelike. Extensive back-panel switches handle desktop vs. free-field placement plus treble/bass adjustment. Harmonic distortion looks good at a moderate 86dB output, appropriate for a speaker this size. Reasonable value at around $799/pair including the calibration mic. Watch for: Native treble tuning runs hot (about 3dB boosted on-axis); the reviewer found the back-panel -3dB switch too aggressive and preferred roughly -1.5dB via external EQ instead. Vertical MTM lobing means listeners need to stay within about 20-25° of the tweeter axis, or the upper-midrange to treble transition suffers significant suckout. Should never be laid on its side (introduces comb filtering); if it must be, the tweeter needs to be pointed directly at the listener. Bass falls off sharply below its F3 of 51Hz (F10 45Hz) - like a cliff - so a subwoofer is required for anything below about 50Hz. Multitone distortion rises sharply at 96dB/1m; the reviewer recommends not exceeding about 86dB for extended listening at any distance. SPL-limited overall: significant bass loss by 96dB, and dynamic range essentially collapses approaching 102dB; maximum broadband output for the pair tops out around 94dB at 1 meter. Horizontal directivity narrows with frequency rather than staying constant, unlike some rival designs.

What the JBL One Series 104 offers: Heavy internal EQ from the amplifier meaningfully compensates for otherwise poor raw driver measurements, and casual listening on undemanding content sounded like a scaled-down JBL 305P Mark II - well above typical computer-speaker quality for the price. Solid build quality for a $90-130 powered pair with dual built-in amplifiers. Watch for: Measuring the passive drivers alone (bypassing the amplifier’s EQ) showed “no bass, no low mids, and highly irregular highs” - a disaster by the reviewer’s description. Even with the amplifier’s correction applied, there’s an on-axis cancellation around 7.4kHz from the coaxial driver design, and JBL’s own published frequency-response graph uses a compressed 95dB vertical scale that hides real deviations the reviewer’s 50dB-scale CEA-2034 measurement reveals. Female vocals and “lisping” content became bright and annoying; the reviewer’s verdict was “can’t recommend it though if you want a true hi-fi experience.”

Buy the IK Multimedia iLoud MTM if sound quality matters more than the price. Buy the JBL One Series 104 if the price matters more than sound quality.

If sound quality matters at all to you, skip the JBL One Series 104. It ranks near the bottom of the 60 powered bookshelf speakers, so look higher up the list instead.

IK Multimedia iLoud MTM vs JBL One Series 104

Specifications Side By Side

IK Multimedia iLoud MTM JBL One Series 104
Price$800 Discontinued$129
Ranked#21 of 60 in Medium Size Powered Bookshelf Speakers#58 of 60 in Medium Size Powered Bookshelf Speakers
Bass Extension (-3dB)50Hz (measured, Audio Science Review)45Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review)
Bass Extension (-10dB)40Hz (measured, Audio Science Review)35Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review)
Dimensions10.4"H x 5.1"W x 6.3"D (264.2 x 129.5 x 160 mm)9.7H x 6W x 4.9D in (per manufacturer, 104-BT)
Frequency Response50 Hz - 24 kHz (-3dB) (Manufacturer specified)60Hz - 20kHz (Manufacturer specified)
InputsXLR-
Weight5.5 lbs / 2.5 kg4.5 lbs / 2.06 kg (master), 3.8 lbs / 1.73 kg (slave)
Drivers2x 3.5" (89mm) woofers4.5" coaxial low-frequency driver, 0.75" soft dome tweeter
AppNoNo
BluetoothNo-
EQYes (Room adjustment)Yes (fixed, amplifier-applied)
Output Power100w Per Speaker60W total Class D (30W per speaker)
DiscontinuedYes-
DSP-Yes

More useful head-to-heads from the same speaker class:

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The Two Speakers In Full

IK Multimedia iLoud MTM: $800 Discontinued Amazon eBay

IK Multimedia iLoud MTM ranking card

Pros: Compact MTM layout (two 3.5” midwoofers flanking a 1” tweeter) powered monitor with 100W per speaker and XLR input, well-suited to desktop/nearfield use with great linearity for mixing or mastering. Includes a genuinely effective auto-room-correction microphone that resolved specific room resonance peaks (150Hz and 220Hz in testing), making the midrange sound noticeably more lifelike. Extensive back-panel switches handle desktop vs. free-field placement plus treble/bass adjustment. Harmonic distortion looks good at a moderate 86dB output, appropriate for a speaker this size. Reasonable value at around $799/pair including the calibration mic.

Cons: Native treble tuning runs hot (about 3dB boosted on-axis); the reviewer found the back-panel -3dB switch too aggressive and preferred roughly -1.5dB via external EQ instead. Vertical MTM lobing means listeners need to stay within about 20-25° of the tweeter axis, or the upper-midrange to treble transition suffers significant suckout. Should never be laid on its side (introduces comb filtering); if it must be, the tweeter needs to be pointed directly at the listener. Bass falls off sharply below its F3 of 51Hz (F10 45Hz) - like a cliff - so a subwoofer is required for anything below about 50Hz. Multitone distortion rises sharply at 96dB/1m; the reviewer recommends not exceeding about 86dB for extended listening at any distance. SPL-limited overall: significant bass loss by 96dB, and dynamic range essentially collapses approaching 102dB; maximum broadband output for the pair tops out around 94dB at 1 meter. Horizontal directivity narrows with frequency rather than staying constant, unlike some rival designs. Discontinued.

AppNo
Bass Extension (-10dB)40Hz (measured, Audio Science Review)
Bass Extension (-3dB)50Hz (measured, Audio Science Review)
BluetoothNo
Dimensions10.4"H x 5.1"W x 6.3"D (264.2 x 129.5 x 160 mm)
DiscontinuedYes
Drivers2x 3.5" (89mm) woofers
EQYes (Room adjustment)
Frequency Response50 Hz - 24 kHz (-3dB) (Manufacturer specified)
InputsXLR
Output Power100w Per Speaker
Weight5.5 lbs / 2.5 kg

JBL One Series 104: $129 Amazon eBay

JBL One Series 104 ranking card

Pros: Heavy internal EQ from the amplifier meaningfully compensates for otherwise poor raw driver measurements, and casual listening on undemanding content sounded like a scaled-down JBL 305P Mark II - well above typical computer-speaker quality for the price. Solid build quality for a $90-130 powered pair with dual built-in amplifiers.

Cons: Measuring the passive drivers alone (bypassing the amplifier’s EQ) showed “no bass, no low mids, and highly irregular highs” - a disaster by the reviewer’s description. Even with the amplifier’s correction applied, there’s an on-axis cancellation around 7.4kHz from the coaxial driver design, and JBL’s own published frequency-response graph uses a compressed 95dB vertical scale that hides real deviations the reviewer’s 50dB-scale CEA-2034 measurement reveals. Female vocals and “lisping” content became bright and annoying; the reviewer’s verdict was “can’t recommend it though if you want a true hi-fi experience.”

AppNo
Bass Extension (-10dB)35Hz with the amplifier's DSP bass boost active (measured, Audio Science Review)
Bass Extension (-3dB)45Hz with the amplifier's DSP bass boost active (measured, Audio Science Review)
DSPYes
Dimensions9.7H x 6W x 4.9D in (per manufacturer, 104-BT)
Drivers4.5" coaxial low-frequency driver, 0.75" soft dome tweeter
EQYes (fixed, amplifier-applied)
Frequency Response60Hz - 20kHz (Manufacturer specified)
Output Power60W total Class D (30W per speaker)
Weight4.5 lbs / 2.06 kg (master), 3.8 lbs / 1.73 kg (slave)