if I have 8 of these for a conference room, do I wire them parallel? Also, these show as having 5w transformers, does that mean Id need min 40w amp?

Yes and no... Your amplifier has to be capable of 25v or 70v output, and you just wire them from one to the other, and so on...this is NOT a 4-Ohm/8-Ohm setup with these speakers, you treat them like parallel lighting I wouldn’t put a 40w amp on 8 5w speakers, I’d use at least a 50w or more

are there ceiling tile speakers with volume control

Yes...perhaps as many as there are without volume controls...you could also add the control to any ceiling speaker lacking one. The control is called an L-Pad, which is basically a potentiometer...I checked options and costs online and they can run from $5.00 to $15.00 each.

Do you need the baffle to install this in a ceiling?

My answer would be that it depends on the material that it is hanging from. Whenever this type of speaker is installed on a drop ceiling, you should always install an appropriate metal support frame to prevent the weight of the speaker to cause the ceiling tile to collapse, potentially injuring occupants. If ceiling tiles are exposed to a small water leak they will collapse quickly. If you're going to mount it in a drywall, make sure to use toggle bolts. Any ceiling-mounted speaker should have a back-up cable type of support system in the event that the structure it is mounted to collapses. I have seen situations where water leaks have caused a collapse of a ceiling, and the energizing of wet floor surfaces with 70 volts.

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JBL CSS8008 Commercial Series 15-Watt 8" Ceiling Speaker, White

JBL CSS8008 Commercial Series 15-Watt 8" Ceiling Speaker, White

Product ID: 408113121

Details

Audio Output Mode
Stereo
Brand
JBL
Connectivity Technology
Bluetooth
Frequency Response
16 KHz
Speaker Maximum Output Power
15 Watts

⚡96 dB high sensitivity

📐120° wide coverage

🔊15W continuous power

Description

🎧 Elevate your space with sound that means business!

EFFICIENCY MEETS CLARITY - 96 dB sensitivity maximizes volume with minimal amplifier strain—smart sound for smart spaces.
POWER THAT PACKS A PUNCH - 15-watt continuous power ensures crystal-clear sound even in busy commercial spaces.
SOUND COVERAGE LIKE NO OTHER - 120-degree conical dispersion delivers immersive audio that fills every corner of your room.
SLEEK READY TO INSTALL DESIGN - Pre-assembled speaker, transformer, and grille combo for effortless ceiling mounting and instant upgrade.
VERSATILE VOLTAGE COMPATIBILITY - Triple-voltage transformer (100V, 70V, 25V) adapts seamlessly to any commercial audio setup.

The JBL CSS8008 is a professional-grade 8-inch ceiling speaker delivering 15 watts of continuous power with a high 96 dB sensitivity and wide 120° sound coverage. Designed for commercial environments, it features a triple-voltage transformer compatible with 100V, 70V, and 25V distributed lines, ensuring versatile installation options. Its pre-assembled design simplifies setup, making it ideal for retail, office, and hospitality spaces seeking premium background music or paging solutions.

Specifications

ASIN	B004W4EB9G
Age Range Description	Adult
Antenna Location	Commercial
Audio Driver Size	8 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Battery Average Life	5 Hours
Box Contents	8" Ceiling Horn
Brand Name	JBL
Colour	White
Compatible Devices	Smartphone, Tablet, Laptop, Home Theater
Compatible with Vehicle Type	Car
Connectivity Protocol	Bluetooth
Control Method	App
Controller Type	Remote Control
Customer Package Type	Standard Packaging
Customer Reviews	4.6 4.6 out of 5 stars (265)
Enclosure Material	Multiple
Frequency Response	16 KHz
Global Trade Identification Number	00050036903929
Impedance Unit of Measure	8 Ohms
Input Voltage	25 Volts
Is Waterproof	False
Item Dimensions D x W x H	38.1D x 38.1W x 10.2H Centimeters
Item Weight Unit of Measure	300 Grams
MP3 player	No
Manufacturer	JBL Professional
Model Name	CSS8008
Model Number	CSS8008
Mounting Type	Ceiling Mount
Network Connectivity Technology	Bluetooth
Number of Audio Channels	15 watt
Number of Items	1
Power Source	AC
Product Features	100 Volt, 70 Volt
Speaker Maximum Output Power	15 Watts
Speaker Size	8 Inches
Speaker Type	Ceiling Mount
Specific Uses For Product	Commercial
Subwoofer Connectivity Technology	Wired
Subwoofer Speaker Diameter Unit of Measure	8 Inches
Tweeter Driver Diameter	1 Inches
UPC	050036903929
Water Resistance Level	Not Water Resistant
Wireless Technology Type	Bluetooth
Woofer Driver Diameter	8 Inches

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