What bluetooth audio codecs does this support? does it support aac and aptx hd? otherwise iphone will fallback to sbc and sound terrible.

It supports aptx, but iPhone doesn’t support aptx. Bluetooth from iPhone 12 sounds pretty good though.

What size are the line in jacks? 3.5mm? Or 6.35mm?

Neither, the line in is 2 x female RCA Coaxial connectors (L & R).

Does the remote for sa300 dac adequately and seamlessly control volume into amplifiers (such as monoblock) that have no volume control of their own?

Hi, This item is actually the SA300 which is an amplifier. The DAC is the MA300 MK2 they look almost identical though.

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S.M.S.L SA300 HiFi Digital Amplifier, Infineon's MA12070 Chip 80W x 2 Class D Power Amp, RCA USB Bluetooth 5.0 APTX Input, Multiple EQ Modes with Remote Control (Black)

Product ID: 168488133

Details

Manufacturer
Shenzhen Co.
Maximum supply voltage
24 Volts (DC)
Minimum supply voltage
24 Volts (DC)
Mounting type
freestanding
Voltage
5 Volts

⚡80W x 2 RMS power output

📡Bluetooth 5.0 with APTX

🔊320W max speaker drive power

$394.39

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Description

🎶 Elevate your sound game with power, precision, and style.

EFFORTLESS CONTROL - Operate everything via the intuitive front knob or the included remote—your music, your way.
SLEEK SOLID BUILD - Premium CNC-machined aluminum alloy chassis with anodized finish offers durability and a tactile knob that feels as good as it sounds.
POWERHOUSE PRECISION - Infineon MA12070 chip delivers crystal-clear 80W x 2 Class D amplification for immersive sound.
TAILORED SOUND EXPERIENCE - Multiple EQ modes plus treble and bass adjustments let you customize your audio vibe effortlessly.
SEAMLESS WIRELESS STREAMING - Qualcomm Bluetooth 5.0 with APTX ensures high-fidelity audio with extended range and minimal loss.

The S.M.S.L SA300 is a compact yet powerful HiFi digital amplifier featuring Infineon's MA12070 chip, delivering 80W per channel with ultra-low distortion. It supports Bluetooth 5.0 with APTX for high-quality wireless streaming and offers multiple EQ modes for personalized sound. Encased in a premium aluminum alloy shell with precision craftsmanship, it combines durability with sleek aesthetics. Perfect for professionals seeking a refined audio upgrade with versatile connectivity and easy control.

Specifications

ASIN	B081DJD1G4
Best Sellers Rank	101,384 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 455 in Hi-Fi Amplifiers
Brand	IS.M.S.LI
Country Of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (1,163)
EU Spare Part Availability Duration	1 Years
Item Weight	770 Grams
Manufacturer	Shenzhen Shuangmusanlin Electronic Co.,Ltd
Manufacturer Part Number	SA300
Material	Aluminum alloy
Maximum Output Power	320 watts
Maximum Supply Voltage	24 Volts (DC)
Minimum Supply Voltage	24 Volts (DC)
Model Number	SA300
Mounting Type	freestanding
Number of Channels	2
Number of Items	1
Output Power	80 Watts
Package Type Name	Bubble Wrap
Product Warranty	2 year
Specification Met	CE
Voltage	5 Volts

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$394.39

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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