Does this come with all the necessary cords to connect this to a computer? Is it rca trs or xlr?

It depends on which speakers you order. The 3.5 and 4.5 come with everything necessary, but the 5 and higher definitely do not come with everything you need. Just the speaker and AC adapter.

Is the the Presonus E3.5 woofer speaker cone unprotected? It appears to have no fabric covering as many speakers would have.

Take a piece of t-shirt and bring it back and forth between your face and the monitors.. you will hear that even something like a tshirt of pantyhose, has a considerable effect on the sound projection. Also, having grills on the speaker looks cheap imo..

I am a Motivational Speaker, can I use these with a microphone when speaking to an audience of 75 people?

There are better choices for that -- you want speakers with a built-in mic preamp, and probably higher wattage amplifiers. You may also want folding speaker tripods. I suggest you puchase speakers designed for this, with a tripod screw hole on the bottom, and XLR mic inputs. For example, Bose EONS sound amazing for music as well. You may also wish to purchase a good wireless mic. Think of it as a system. The size of the room and the audience determine the required size and power of speakers.

Do the Eris 4.5 mute themselves when a headphone is connected?

Ideally they should, unless you’re using the Presonus Audiobox (or any other audio interface) and you connect headphones to that. In which case, they won’t mute.

Presonus Eris Sub 8 Compact Studio Subwoofer

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🎧 Feel the Boom, Own the Room — Subwoofer Mastery for the Modern Pro

COMPACT YET MIGHTY - 8-inch front-firing woofer delivers molar-rattling lows in a sleek, space-conscious design perfect for any studio.
POWERFUL 100 W OUTPUT - Experience deep, distortion-free bass from a robust Class AB amplifier that commands your studio space.
SEAMLESS INTEGRATION - Connect effortlessly with balanced ¼-inch TRS and RCA inputs/outputs, plus polarity invert to fix phase issues.
PRECISION BASS CONTROL - Tailor your low-end with adjustable lowpass (50-130Hz) and defeatable highpass filters for crystal-clear mixes.
BONUS PRO SOFTWARE SUITE - Unlock over $1000 worth of music production tools with Studio One Prime and Studio Magic plug-ins included.

The PreSonus Eris Sub 8 is a compact, 8-inch studio subwoofer featuring a 100W Class AB amplifier for powerful, distortion-free bass down to 30Hz. Designed to perfectly complement Eris monitors, it offers variable lowpass and highpass filters, balanced TRS and RCA connectivity, and a polarity invert switch for phase correction. Included software bundles add over $1000 in production value, making it an essential upgrade for professional and aspiring producers seeking precise, impactful low-frequency control.

Specifications

ASIN	B08MJ1CCMF
Additional Features	The Eris Sub8 active subwoofer features an 8-inch, front-firing, glass-composite woofer; 100W power; a built-in tuning controls to complement your full-range monitors plus stereo ¼-inch TRS and RCA inputs and outputs. A variable lowpass filter for creating a seamless crossover transition and a switchable 80 Hz highpass filter to optimize performance with satellite speakers.
Antenna Location	For Music Players
Audio Driver Size	8 inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Surround
Best Sellers Rank	#103,398 in Musical Instruments ( See Top 100 in Musical Instruments ) #28 in Studio Subwoofers
Brand	PreSonus
Built-In Media	(1) E Sub 8 powered subwoofer, (1) IEC power cable, Quick Start Guide
Compatible Devices	Laptop, Personal Computer, Smartphone
Connectivity Protocol	Bluetooth
Connectivity Technology	RCA
Control Method	Touch
Controller Type	Corded Electric
Customer Package Type	Standard Packaging
Customer Reviews	4.6 out of 5 stars 617 Reviews
Enclosure Material	Stainless Steel
Frequency Response	130 hertz
Is Waterproof	FALSE
Item Dimensions D x W x H	13"D x 12.5"W x 9.9"H
Item Type Name	Eris Sub 8 Compact Studio Subwoofer
Item Weight	15 pounds
Manufacturer	Presonus
Maximum Range	8 meters
Model Name	Eris Sub 8 Compact Studio Subwoofer
Model Number	E SUB 8
Mounting Type	Floor Standing
Number Of Circuits	1
Number of Audio Channels	5.1, 7.1
Number of Items	1
Number of Microphones	1
Number of Power Levels	1
Power Source	Corded Electric
Speaker Maximum Output Power	100 watts
Speaker Size	8 inches
Speaker Type	Subwoofer
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	8 inches
UPC	673454009617
Unit Count	1 Count
Warranty Description	1 year manufacturer
Warranty Type	Limited
Wireless Technology	Bluetooth
Woofer Diameter	8 inches

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