What cables do I need to connect these to my computer?

The MkII series of powered studio monitors features input connectors for XLR or ¼” TRS cables (not included with purchase). If neither of these will connect directly to your computer, try using an adapter with XLR or TRS at one end and a computer-friendly connector at the other end.

How's the bass on this? Is it boomy or muddy?

Realistically, if you are working with contemporary EDM or any electronic music with sounds below 45Hz, you need a sub. Don't get me wrong, the LSR305s are excellent, clearer than the 308s. For material like Country, the bass is sufficient. Even for Rap and EDM you can adjust and place them just right, and estimate how things will sound on a big club or car system. But pairing the LSR305s with e.g. a LSR310S sub gives you the real thing, though sub placement is SO critical it's another rabbit hole.

Do these hiss? I sent back lsr305 due to the hissy tweeters :(

Some do. It’s normal. on the ones that do they are extremely quiet. The “hiss” is only audible while the speakers are not in use and is caused by the internal amp. I wouldn’t call it a hiss as much as it is just static noise from the amps unused electricity. If you don’t like that, maybe these aren’t the ones for you. But I will say that most other powered monitors I have used make this exact same noise. With mine mounted on the wall about 2 feet in front of me and 2 feet above me pointed down at my seat I cannot hear the hiss until ~90%+ volume, And again, exclusively when they are not in use. Hope this helps.

Does this come with cables?

This speaker comes with a power cable, but audio cables are not included. The speaker has one XLR and one 1/4" TRS connector, so you can purchase whatever cables work with your system.

Jbl 305p Mkii | Desertcart British Virgin Islands

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Description

🎧 Elevate your sound game with JBL’s studio-grade precision and power.

BASS THAT COMMANDS - Slip Stream low-frequency port ensures deep, punchy bass at every volume level—no compromises.
POWER MEETS CLARITY - Dual custom Class-D amplifiers pump 82 watts for dynamic range that fills any professional space.
PRECISION IMAGING MASTERY - Patented Image Control Waveguide delivers razor-sharp soundstage and a broad sweet spot for flawless mixing.
TAILORED ACOUSTIC CONTROL - HF Trim and Boundary EQ switches let you customize high-frequency output and room compensation effortlessly.
SEAMLESS STUDIO INTEGRATION - Flexible balanced XLR and 1/4" TRS inputs with adjustable sensitivity and volume for perfect connectivity.

The JBL Professional 305PMKII-EU is a 5-inch 2-way powered studio monitor engineered for exceptional accuracy and dynamic range. Featuring patented Image Control Waveguide technology, Slip Stream bass port, and dual Class-D amplifiers delivering 82 watts, it offers detailed imaging and powerful bass response. With flexible connectivity options and customizable EQ settings, it’s designed to adapt perfectly to any professional studio environment, ensuring reliable, high-fidelity sound for critical listening and mixing.

Specifications

ASIN	B077N2GQXC
Age Range Description	Adult
Antenna Location	For DVD Players, For Music Players
Audio Driver Size	5 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Battery Average Life	100 Hours
Best Sellers Rank	#1,161 in Musical Instruments ( See Top 100 in Musical Instruments ) #28 in Studio Accessories
Box Contents	1 x 305P MkII studio monitor, 1 x Power cord, 1 x Quick setup guide, 4 x Peel-off rubber pads
Brand Name	JBL
Colour	Black
Compatible Devices	Smartphone
Compatible with Vehicle Type	Car
Connectivity Protocol	XLR, TRS
Control Method	App
Controller Type	Button
Customer Package Type	Standard Packaging
Customer Reviews	4.3 4.3 out of 5 stars (1,838)
EU Spare Part Availability Duration	7 Years
Enclosure Material	Acrylonitrile Butadiene Styrene (ABS)
Frequency Response	49 Hz
Global Trade Identification Number	00691991007705
Importer Contact Information	Harman International India Private Limited, Salarpuria Sattva Knowledge Court, Office-1, Wing ‘A’ & ‘B’ 3rd & 5th floor, Plot No. 9, Phase I , Doddenakkundi Industrial Area, K.R. Puram Hobli, Bangalore -560048,Karnataka, India.
Input Voltage	240 Volts
Is Waterproof	false
Item Dimensions D x W x H	23.1D x 18.5W x 29.8H Centimeters
Item Type Name	1
Item Weight Unit of Measure	4.59 kg
MP3 player	No
Manufacturer	Harman Professional, Inc., JBL Processional, 8500 Balboa Blvd, Northridge, CA 91329, United States, Harman Professional Inc.
Manufacturer Contact Information	JBL Processional, 8500 Balboa Blvd, Northridge, CA 91329, United States, Harman Professional Inc.
Model Name	305PMKII-EK STUDIO MONITORS
Model Number	305PMKII
Mounting Type	Floor Standing
Network Connectivity Technology	Balanced XLR and 1/4" TRS
Number Of Circuits	2
Number of Audio Channels	5 1
Number of Items	1
Number of Power Levels	1
Packer Contact Information	Harman Professional, Inc 8500 Balboa Blvd. NORTHRIDGE CA 91329 USA
Power Source	Corded Electric
Product Features	Subwoofer
Series Number	305
Signal-to-Noise Ratio	75 dB
Speaker Maximum Output Power	7 Watts
Speaker Size	5 Inches
Speaker Type	Woofer
Specific Uses For Product	Studio, Home Theatre
Subwoofer Connectivity Technology	Wired
Subwoofer Speaker Diameter Unit of Measure	12 Inches
Tweeter Driver Diameter	1 Inches
UPC	691991007798 632317256865 691991007705 094148238548 094148020068
Unit Count	1 Count
Warranty Description	3 years
Water Resistance Level	Not Water Resistant
Wireless Technology Type	Bluetooth
Woofer Driver Diameter	5 Inches

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Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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JBL 305P MKII

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Description

Specifications

Common Questions