Description
Original owner bought from headphones.com, don’t have original boxes. This SMSL SP400 + SMSL M400 Headphone Amplifier DAC Stack is the perfect addition to your home audio setup. With a sleek black design, this amplifier and DAC stack is both stylish and functional. It features stereo L/R RCA and XLR audio inputs, as well as XLR audio outputs, allowing you to easily connect all of your favorite devices. I was driving both planar and dynamic headphones without issues: Sennheiser HD 800S, HD 650, Audeze LCD-3, HifiMan Arya Stealh V3. Combo did a great job, M400 is a wonderful DAC, I was using the I2S connections, USB, and connected via XLR. Read reviews on both the DAC and headphone amp. This stack includes the SMSL SP400 and M400 models, both in perfect condition. Include power cables, manuals, remotes, Schiit Pyst (Snake oil) 10” XLR cables, $40 at Schiit included with sale for free. Do not have original boxes, but will ship protected and insured for purchase price. M400 specs: The SMSL M400 MQA DAC will use the newest high performing D/A chip from AKM, the AK4499. It supports MQA decoding, PCM 32bit / 768 kHz, and DSD512 Native. It supports UAT files, comes with a high-end power supply, and includes a jitter clock design. The M400 has USB, Optical, Coaxial, Bluetooth, and IIS inputs. For outputs, it has RCA and XLR capability. Finally, it comes with a remote control for ease of use from a distance. Specs: D/A Chip: AK4499EQ Contains XMOS XU216 Chip Contains 2 ACCUSILICON Crystal Oscillators Supports MQA Decoding Bluetooth 5.0 Capability Supports UAT: 24bit/192kHz Supports LDAC: 24bit/96kHz Supports aptX HD: 24bit/48kHz Supports AAC: 16bit/44.1kHz DSD512 Native PCM 32bit/768kHz SNR: 131dB THD+N (A-weighted): 0.000058% (-124dB) Dynamic Range: 131dB SP400 specs: Product highlights THXAAA-888 Headphone Amplifier with THX AAA Technology Ultra-compact design Balanced stereo headphone output Pre-amplifier application Balanced stereo line input High precision resistors for temperature stability Pop-less design with high-quality relays High precision and low noise 256-level relay volume control 3-position switchable gain control DC, over-voltage, over-current, short-circuit and thermal protection High-efficiency ultra-low-noise power supply Full function remote 1.9” LCD display Inputs: 1 balanced, 1 unbalanced Outputs: 1 balanced, 1 unbalanced, 1 pre-balanced Output power Balanced 12W x 2 (16?) 6W x 2 (32?) 880mW x 2 (300?) 440mW x 2 (600?) Unbalanced 6W x 2 (16?) 3W x 2 (32?) 440mW x 2 (300?) 220mW x 2 (600?) SNR: 133dB, A-weighted Output noise: 1.9uV, A-weighted THD+N: -123dB, 0.00007% (1kHz, 32?) THD+N: -117dB, 0.00013% (20-20kHz, 32?, -3dB) THD: <-125dB, 0.00006% Input impedance: 47k? Output impedance: Near 0 ? Frequency Response: 0.1Hz - 500,000Hz(-3dB) Power supply voltage/frequency: AC100-240V, 50-60Hz Power consumption (EN60065): <40W Power consumption in standby mode: <0.1W Size: 8.66 x 8.4 x 1.69” (220 x 215 x 43mm) Weight: 2.9lbs (1330g)o
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