JM Audio Editions Summer Audio Helios DB600 Class A Discrete Amp/Preamp and ROHM DAC
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Manufacturer's Description — JM Audio Editions
SAME DAC CHIP SET as Luxman $9K dac and cdplayer -
Under the hood: Dual ROHM BD34302EKV DACs, discrete Class-A amplification and preamp, up to 8W headphone output, I²S, balanced + single-ended headphone outputs, and XLR/RCA preamp outputs. Ipad is not included obviously but that is all you need- a used one on amazon for $175 gets you bit for bit perfect sound from this amazing dac with such high quality sound I am blown away!
Dual ROHM Flagship DACs- Under the hood, the DB600 utilizes dual ROHM BD34302EKV chips configured in a true dual-mono layout (one chip dedicated entirely to the left channel and one to the right). This layout unlocks ROHM's proprietary HD Monaural Mode, which heavily reduces the noise floor and delivers a very smooth, atmospheric, and analog-like sound stage.
Isolated Triple-Transformer Power Supply Clean power is crucial for a premium DAC. Summer Audio engineered the DB600 with three independent toroidal transformers ("three cows"). The digital processing circuitry, the ROHM decoding stage, and the Class-A amplifier stage each have their own completely isolated power supplies to eliminate internal electrical interference
Massive Class-A Power Output: The built-in, self-developed fully discrete Class-A headphone amplifier circuit is remarkably powerful. It can pump out up to 8,000mW (8W) of power per channel, allowing it to drive even the most notoriously demanding planar magnetic headphones with ease. To manage this power safely, the front panel features a physical 4-gear gain knob and a 4-gear output impedance adjustment switch.
DAC Chips: ROHM BD34302EKV ×2 Digital Processing Chip: AK4118 + FPGA
USB Chip: XMOS XU-316
Operational Amplifiers: OPA1612 ×6 OPA1656 ×2 Discrete Op-Amps ×6 Class-A Headphone Amplifier ×1 Signal-to-Noise Ratio: 125 dB Distortion: <0.0003%
Bluetooth Chip: QCC5125 Optical / Coaxial: PCM: 44.1–192 kHz DSD: DSD64 (DoP)
Input Ports: USB / Optical / Coaxial / Bluetooth / AES / IISUSB / Optical / Coaxial / Bluetooth / AES / IIS
Output Ports:RCA L+R / XLR L+R / XLR / 4.4 mm / 6.35 mm Headphone
XLR Output Level:4V / 6V / 8V
RCA Output Level:2V / 3V / 4V
Headphone Output Power (32Ω):XLR / 4.4 mm: 8W Class A, THD+N ≤ 0.1%6.35 mm: 2.7W Class A, THD+N ≤ 0.08%
Headphone Output Power (300Ω):XLR / 4.4 mm: 1.2W Class A, THD+N ≤ 0.1%6.35 mm: 350mW Class A, THD+N ≤ 0.08%
Frequency Response:10Hz–40kHz (+0.6dB)
Product Weight:7.55 kg (Net Weight)9.2 kg (Gross Weight)
Note Tariffs are not included - email me for information on this and how we take care of local taxes and shipping when shipped in USA.