Lhlabs Geek Pulse DAC

by JolinTsai Mon Jul 25, 2016 10:31 am

Lhlabs Geek Pulse DAC (no HP output version)

For sale at RM2500.
Conditions 8/10.
Original documentation / boxes available.
Whatsapp: 017 - 4747 - 808

Reason - was reference/comparison DAC to develop our own DAC. Seldom to rare usage. Sell to make more space.

Details of Geek Pulse version with HP output (cannot find the one without HP output, not available anymore I guess).

http://marketplace.lhlabs.com/products/pulse-dac-headphone-amplifier

Specs

USB Audio Class 2.0 input with other 4 digital audio inputs all converted to 3L buffered I2S signal, then send to DAC IC
Full balanced current output then transconductance amp then summing up output amplifier
Two audiophile grade low jitter TCXO with super quiet power circuit and mu-metal shield
DAC IC: ESS9018K2M
Digital Inputs:
- One USB 2.0 Type B Female
- One set SPDIF via TOSLINK (JIS F05 Female)
- One set AES/EBU (AES/EBU input compatible SPDIF signal by Adapter)
- Two set SPDIF via RCA Coaxial
Supported Native PCM format: 44.1, 48, 88.2, 96, 176.4, 192, 352.8K, 384 kHz in 16/24/32 bit
Supported Native DSD format: 2.822, 3.072, 5.644, 6.144 Mega Hz / 1bit (via USB 2.0 Input) Support both DoP standard 1.1 and Native DSD (requires ASIO driver)
Patent Pending: 3L buffer by Light Harmonic Dual loop re-clock for all digital audio inputs
Digital Filter: Two mode selectable: Time Comprehension Mode (TCM) and Frequency Response Mode (FRM)
Line Output Configuration: One pair Single- ended via gold plated Switchcraft RCA
Single-ended output voltage and impedance: 2.1Vrms (47 Ohm)
Headphone output configuration: Single-end via 1/4" TRS Headphone Jack (not available)
HP Single- ended output voltage and impedance: 1.8V / 3V / 6.8V switchable (0.47Ohm flat in 20~20K Hz range) (not available)
THD+N: Better than 0.005%
SNR: Better than 110dB
Frequency Response: 1-50K (-3dB) control by Bessel analog filter
Power Input: 12V DC - 650mA ~ 950mA depend on system load and sampling rate