Short answer: the SMSL D400 Pro. Both are rated 4.8/5 (#10 and #16 of 30 DACs), and the SMSL D400 Pro costs $728.20 against $999 for the SMSL VMV D2R, and with measured performance even, the cheaper one is the better buy.
The case for the SMSL D400 Pro: Audio Science Review measured 122 dB SINAD, so its noise and distortion are inaudible. The tradeoff: It is a DAC only, so you need a separate headphone amp or powered speakers.
The case for the SMSL VMV D2R: Audio Science Review measured a SINAD of 117 dB, so its noise and distortion are inaudible. The tradeoff: It is the priciest DAC in its group yet only matches the rating of the SMSL D-6S, which costs a fraction as much and measured cleaner.
Buy the SMSL D400 Pro. Both are rated the same, and it costs $270.80 less than the SMSL VMV D2R.
Still deciding? The full Headphone Amps and DACs rankings cover every ranked option.
Specifications Side By Side
| SMSL D400 Pro | SMSL VMV D2R | |
|---|---|---|
| Price | $728.20 | $999.00 |
| Ranked | #10 of 30 in DACs | #16 of 30 in DACs |
| Device Type | DAC | DAC |
| SINAD | 122 dB (measured by Audio Science Review) | 117 dB (measured by Audio Science Review) |
| Balanced Output | Yes (XLR line out) | Yes (XLR line out) |
| Inputs | USB, optical, coaxial, I2S, AES, Bluetooth | USB, optical, coaxial, AES, I2S, Bluetooth |
| Outputs | RCA, XLR | RCA, XLR |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | AK4499EX + AK4191EQ | BD34301EKV |
| Dimensions | 10” x 1.8” x 7.4” (254 x 46 x 189 mm) | 11” x 1.7” x 9.3” (280 x 43 x 235.5 mm) |
| Weight | 4.2 lbs (1.9 kg) | 7.1 lbs (3,200 g) |
| Volume Control | - | Hardware knob |
Related Amp and DAC Comparisons
How SMSL D400 Pro compares with other leading options:
- SMSL D400 Pro vs SMSL SU-10
- SMSL D400 Pro vs SMSL RAW Pro-DAC1
- SMSL D400 Pro vs SMSL VMV D1se2
- SMSL D400 Pro vs Topping D70 Pro SABRE
- SMSL D400 Pro vs Topping D90 III Sabre
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Amps and DACs In Full
SMSL D400 Pro: $728.20 HiFiGo eBay
Pros: Audio Science Review measured 122 dB SINAD, so its noise and distortion are inaudible. It has a wide range of inputs, including USB, optical, coaxial, I2S, AES and Bluetooth with LDAC, aptX HD, aptX, AAC and SBC, and outputs to amps or powered speakers over RCA or balanced XLR.
Cons: It is a DAC only, so you need a separate headphone amp or powered speakers. The Topping D70 Pro SABRE earns the same rating and measured slightly cleaner for less, and the SMSL DO200 Pro matches its SINAD for much less. No volume control is listed, so it may not work as a preamp for active speakers.
Full SMSL D400 Pro review and specifications →
| Balanced Output | Yes (XLR line out) |
|---|---|
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | AK4499EX + AK4191EQ |
| Device Type | DAC |
| Dimensions | 10” x 1.8” x 7.4” (254 x 46 x 189 mm) |
| Inputs | USB, optical, coaxial, I2S, AES, Bluetooth |
| Outputs | RCA, XLR |
| SINAD | 122 dB (measured by Audio Science Review) |
| Weight | 4.2 lbs (1.9 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
SMSL VMV D2R: $999.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 117 dB, so its noise and distortion are inaudible. It offers USB, optical, coaxial, AES, I2S and Bluetooth with LDAC, aptX HD and AAC, plus RCA and balanced XLR outputs and a hardware volume knob for use as a preamp.
Cons: It is the priciest DAC in its group yet only matches the rating of the SMSL D-6S, which costs a fraction as much and measured cleaner. The Topping D70 Pro SABRE also measured cleaner at 123 dB for much less. At 3.2 kg it is large and heavy.
Full SMSL VMV D2R review and specifications →
| Released | Sep 2023 (3 years ago) |
|---|---|
| Balanced Output | Yes (XLR line out) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | BD34301EKV |
| Device Type | DAC |
| Dimensions | 11” x 1.7” x 9.3” (280 x 43 x 235.5 mm) |
| Inputs | USB, optical, coaxial, AES, I2S, Bluetooth |
| Outputs | RCA, XLR |
| SINAD | 117 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 7.1 lbs (3,200 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons