Short answer: the Presonus Eris E3.5 2nd Gen on price, the Audioengine A2+ if you want inputs and a small footprint. At $99.99 against $299, the Presonus saves $199.01 and offers rear high- and low-frequency shelf controls, but its stock on-axis response is a pronounced “smiley face” V-curve with the midrange scooped roughly 6-7dB. The A2+ is more flexible with RCA, 3.5mm, USB, and Bluetooth inputs but has its own 6dB on-axis midrange dip.
What the Audioengine A2+ offers: Genuinely small footprint for real desktop use, with a wide input selection (RCA, 3.5mm, USB, Bluetooth) plus a rear volume knob and variable RCA output. The tradeoff: Raw anechoic response has an on-axis midrange dip the reviewer called “too much” at about 6dB peak-to-peak, and a persistent 2dB dip from 3-5kHz that desk placement doesn’t fix - possibly a crossover integration issue.
The case for the Presonus Eris E3.5 2nd Gen: Includes rear-panel high- and low-frequency shelf tone controls, letting you tailor the sound (helpful for near-wall placement, where the reviewer suggests reducing the bass knob). Watch for: Stock on-axis response has a pronounced “smiley face” V-curve, with the midrange scooped roughly 6-7dB below the bass and treble - problematic for any mixing or monitoring use.
Buy the Audioengine A2+. It is rated higher for sound quality, and saving $199.01 with the Presonus Eris E3.5 2nd Gen does not make up for the sound-quality gap.
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Specifications Side By Side
| Audioengine A2+ | Presonus Eris E3.5 2nd Gen | |
|---|---|---|
| Price | $299.00 per pair | $99.99 per pair |
| Ranked | #14 of 25 in Small Size Powered Bookshelf Speakers | #23 of 25 in Small Size Powered Bookshelf Speakers |
| Inputs | RCA, 3.5mm, USB, Bluetooth 5.0 | RCA, 1/4” Balanced |
| Drivers | 0.75” silk dome tweeter, 2.75” fiber woofer | 3.5” woofer, 1” silk dome tweeter |
| Amplifier Power | 15W RMS / 30W peak per channel | 50W total (25W per speaker) |
| Frequency Response | 65Hz - 22kHz (+-2dB, Manufacturer specified) | 80 Hz-20 kHz (-3dB) (Manufacturer specified) |
| Bass Extension (-3dB) | 105.5Hz (measured, Erin’s Audio Corner) | 80Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 58.9Hz (measured, Erin’s Audio Corner) | 70Hz (measured, Erin’s Audio Corner) |
| Bluetooth Version | 5.0 | - |
| EQ | No (fixed volume knob only) | Yes (Acoustic space) |
| App | No | No |
| Dimensions | 6” x 4” x 5.2” (152 x 102 x 133 mm) | 8.3”H x 6”W x 5.5”D (210.8 x 152.4 x 139.7 mm) |
| Weight | 3.5 lbs (1.6 kg) left / 3.1 lbs (1.4 kg) right | 8.6 lbs (3.9 kg) |
| Spinorama Preference Score | 2.78 | 1.51 |
| Spinorama Preference Score with Perfect Sub | 6.10 | 4.17 |
| Subwoofer Output | Yes | - |
| Outputs | RCA variable output (subwoofer) | 1/8” headphone jack |
| XLR Input | No | No |
| RCA Input | Yes | Yes |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | Yes | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | Yes | No |
| Bluetooth | Yes | No |
| Sensitivity | - | 87.4dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Maximum SPL | - | 95dB @ 1m (manufacturer specified) |
| Headphone Output | - | Yes |
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Prices on this page were last checked October 3, 2026 at 10:26 PM 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
Audioengine A2+: $299.00 per pair Amazon Audioengine eBay
Pros: Erin’s Klippel measurements give a 6.10 predicted preference score with an ideal subwoofer. The tiny footprint, multiple inputs and variable RCA output are useful for desktop listening. The existing review found desk placement more forgiving than free-space placement, with no major port-chuffing problem in its tests. Measured bass extension of 105.5Hz (-3dB).
Cons: The 2.78 standalone score and roughly 106Hz measured -3dB point reveal how much bass is missing without reinforcement or a subwoofer. Midrange and crossover-region dips remain; desk gain is placement-dependent and cannot be assumed to correct them. Compression becomes substantial above roughly 87dB at 1m in the review, so this is a quiet nearfield option rather than a high-output monitor.
Full Audioengine A2+ review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 15W RMS / 30W peak per channel |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 58.9Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 105.5Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes |
| Bluetooth Version | 5.0 |
| Coaxial Input | No |
| Dimensions | 6” x 4” x 5.2” (152 x 102 x 133 mm) |
| Drivers | 0.75” silk dome tweeter, 2.75” fiber woofer |
| EQ | No (fixed volume knob only) |
| Frequency Response | 65Hz - 22kHz (+-2dB, Manufacturer specified) |
| HDMI Input | No |
| Inputs | RCA, 3.5mm, USB, Bluetooth 5.0 |
| Optical Input | No |
| Outputs | RCA variable output (subwoofer) |
| RCA Input | Yes |
| Spinorama Preference Score | 2.78 |
| Spinorama Preference Score with Perfect Sub | 6.10 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | Yes |
| Weight | 3.5 lbs (1.6 kg) left / 3.1 lbs (1.4 kg) right |
| XLR Input | No |
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Presonus Eris E3.5 2nd Gen: $99.99 per pair Amazon eBay
Pros: Rear-panel bass and treble controls allow broad correction for desk and wall placement. Erin’s second-generation Klippel measurements give a -3dB point around 69Hz, so the speaker has useful upper-bass reach for its size. Its adjustable balance is more flexible than a fixed-response budget desktop pair. Measured bass extension of 80Hz (-3dB), with a measured sensitivity of 87.4dB.
Cons: The stock response spans 7.2dB from 300Hz to 5kHz and has a strong rising trend of about 1.27dB per octave, emphasizing treble over the midrange. Preference scores of 1.51 standalone and 4.17 with an ideal subwoofer indicate major tonal problems beyond bass extension. EQ may help, but a subwoofer alone will not make it neutral. Output and port-modification results from reviews of the original E3.5 should not be assumed to apply to this second-generation model.
Full Presonus Eris E3.5 2nd Gen review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 50W total (25W per speaker) |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 70Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 80Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 8.3”H x 6”W x 5.5”D (210.8 x 152.4 x 139.7 mm) |
| Drivers | 3.5” woofer, 1” silk dome tweeter |
| EQ | Yes (Acoustic space) |
| Frequency Response | 80 Hz-20 kHz (-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Headphone Output | Yes |
| Inputs | RCA, 1/4” Balanced |
| Maximum SPL | 95dB @ 1m (manufacturer specified) |
| Optical Input | No |
| Outputs | 1/8” headphone jack |
| RCA Input | Yes |
| Sensitivity | 87.4dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 1.51 |
| Spinorama Preference Score with Perfect Sub | 4.17 |
| TRS Input | No |
| USB Input | No |
| Weight | 8.6 lbs (3.9 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner Review Measurements More from Erin’s Audio Corner →
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- DSAUDIO.review: DSAUDIO.review Edifier MR4 vs Presonus Eris E3.5 sound.DEMO More from DSAUDIOreview →
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