Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
popularf12_26 | Staff posted Sep 20, 2025 12:25 AM
  1. Deal Image
Item 1 of 8
  1. Deal Image
  2. Deal Image
  3. Deal Image
  4. Deal Image
Item 1 of 8
popularf12_26 | Staff posted Sep 20, 2025 12:25 AM

Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp $73.50 & More + Free Shipping

$74

$105

29% off
9 Comments 6,804 Views
Get Deal at Retailer
Good Deal
Save
Share
Deal Details
Fosiaudio [fosiaudio.com] has their Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp is on sale for $104.99 - $31.49 w/ code 8TH30 = $73.50. Shipping is free

About BT30D PRO:
  • THD: ≤ 0.03%; SNR: ≥ 108dB; Frequency Range: 20Hz - 20kHz (±1 dB)
  • MAX Power Output: 165W×2+350W
  • Input: Bluetooth + RCA; Input Sensitivity: ≤ 600mV
  • Terminating Impedance: 2-8 Ohm
  • Output: Passive/Active Speakers+ Passive/Active Subwoofer
  • Power Supply: 32V/5A, 48V/5A

Also Available
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Fosiaudio [fosiaudio.com] has their Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp is on sale for $104.99 - $31.49 w/ code 8TH30 = $73.50. Shipping is free

About BT30D PRO:
  • THD: ≤ 0.03%; SNR: ≥ 108dB; Frequency Range: 20Hz - 20kHz (±1 dB)
  • MAX Power Output: 165W×2+350W
  • Input: Bluetooth + RCA; Input Sensitivity: ≤ 600mV
  • Terminating Impedance: 2-8 Ohm
  • Output: Passive/Active Speakers+ Passive/Active Subwoofer
  • Power Supply: 32V/5A, 48V/5A

Also Available

Community Voting

Deal Score
+9
Good Deal
Get Deal at Retailer

Leave a Comment

Unregistered (You)

9 Comments

Sign up for a Slickdeals account to remove this ad.

Sep 20, 2025 02:24 AM
608 Posts
Joined Feb 2023
IndigoManatee4695Sep 20, 2025 02:24 AM
608 Posts
Can this run my focal aria evo x no2 speakers? They dip down to 2ohms
Sep 20, 2025 03:47 AM
1 Posts
Joined Sep 2025
HilariousBird9349Sep 20, 2025 03:47 AM
1 Posts
Quote from IndigoManatee4695 :
Can this run my focal aria evo x no2 speakers? They dip down to 2ohms
Supports speakers rated at 2–8 ohms
1
Sep 20, 2025 05:07 PM
800 Posts
Joined Jan 2021
BlownCamaroSep 20, 2025 05:07 PM
800 Posts
This is a very good price on a great little amp! I used mine to power sim racing haptics and also headrest speakers. It's LOUD and shakes the seat.
Sep 20, 2025 08:45 PM
5,019 Posts
Joined Dec 2009
seanleeforeverSep 20, 2025 08:45 PM
5,019 Posts
what exactly does
"MAX Power Output: 165W×2+350W"
mean?
Sep 20, 2025 09:37 PM
470 Posts
Joined Oct 2014
batavooshSep 20, 2025 09:37 PM
470 Posts
Quote from seanleeforever :
what exactly does
"MAX Power Output: 165W×2+350W"
mean?
165 is for the left and right speaker and 350 for the subwoofer. While these specs are crazy high, I use this amp to power speakers and subs and it does put out power. I'll call it closer to those Microsystems of the 90's like then denon with the bookshelf speakers rated at 35 - 45 watts
Sep 22, 2025 12:10 AM
64 Posts
Joined Aug 2018
HonestHamster3481Sep 22, 2025 12:10 AM
64 Posts
Quote from seanleeforever :
what exactly does
"MAX Power Output: 165W×2+350W"
mean?
Those outputs are only possible with a 48v 10amp power supply and likely 4ohm nominal speakers. . This comes with a 36v 5a power supply and the output with typical 6-8ohm speakers will be less. There will still be more than enough power for normal listening volumes.
I've used a couple of similar amps and they work great.
Original Poster
Pro
Staff
Sep 25, 2025 11:59 PM
35,853 Posts
Joined Apr 2014
f12_26Sep 25, 2025 11:59 PM
Original Poster
Pro
Staff
35,853 Posts
Front page reference for Fosi Audio K5 Pro https://slickdeals.net/f/17456628-fosi-audio-k5-pro-gaming-dac-headphone-amplifier-mini-hi-fi-stereo-for-ps5-pc-mac-smartphone-free-shipping-56?src=SiteSearch

Sign up for a Slickdeals account to remove this ad.

Sep 26, 2025 12:40 AM
982 Posts
Joined Nov 2011
topshelf207Sep 26, 2025 12:40 AM
982 Posts
It's weird the THD is <.03% when the BT20A Pro is <.005%
Sep 27, 2025 12:08 PM
72 Posts
Joined May 2018
SharpSardine8228Sep 27, 2025 12:08 PM
72 Posts
Quote from topshelf207 :
It's weird the THD is <.03% when the BT20A Pro is <.005%
The 30D has more complex circuit design and cross-over to integrate the second chip to power a subwoofer. It also has more complex tone controls to introduce noise into the circuit.

Leave a Comment

Unregistered (You)

Related Searches

Free ShippingTech & ElectronicsAudio / VideoCouponOnline Only

Popular Deals

See All
Found by ScarletMask954
Today 04:24 AM
$11$2860% offSTREBITO Electronics Precision Screwdriver Sets 142-Piece $11.19
1
Found by babgaly
Yesterday 05:30 PM
$6.99$2369% offLeominor 230ml Cordless Rechargeable Water Dental Flosser (Black) $6.49 + Free Shipping w/ Prime or on $35+
5
Found by Bojjihuntindeals
Today 02:04 AM
$13$5074% offMcFarlane Toys The Walking Dead: Rick Grimes 1:8 Scale Posed Figure $13.03 + Free Shipping w/ Prime or on $35+
0
Found by ItsSoCheap
Today 05:01 AM
$8.99$1850% offAlpsWolf Rechargeable 4000mAh Camping LED Lantern $8.99 + Free Shipping w/ Prime or on $35+
3
Found by N3RD_01
Today 05:21 AM
$1,228$2,10041% offAcer Predator Orion 5000 Desktop NVIDIA GeForce RTX 4070Ti Super 2TB Refurbished Official Acer Recertified Store (Certified Refurbished) $1228.49
0

Trending Deals

See All
Found by gccutie1986
Yesterday 09:06 PM
$26$6560% offXLT Carhartt adventurine hoodie for $26.33
13
Found by N3RD_01
Today 03:26 AM
$1,180$1,35012% offGIGABYTE GAMING A16 Gaming Laptop - 165Hz 1920x1200 WUXGA - NVIDIA GeForce RTX 5070 - Intel i7-13620H - 1TB SSD with 16GB DDR5 RAM - Windows 11 Home AD $1179.99
0
Found by Cobalt_Blue_FF
Yesterday 10:07 PM
$10Amazon: CRAFTSMAN 10-Pc 3/8" Metric Mechanics Tool Set $10.48 (Reg $27.99, ~63% Off) + YMMV Coupon + FS w/ Prime
2
Found by Dr.W
Yesterday 02:40 PM
$130$23043% offNucBox G10 Mini PC Barebone: AMD Ryzen 5 3500U @GMKTec $129.99
10
Found by ScarletMask954
Today 04:24 AM
$11$2860% offSTREBITO Electronics Precision Screwdriver Sets 142-Piece $11.19
0