Medea+OP1-BP Board

Medea+OP1-BP & Medea Original Analogue Boards.

Although the latest Weiss Medea+ looks very similar (some may say it is even the same) as the original Medea, the biggest different lies on the DAC & Analogue board.

Medea+ & Original Medea DAC/Analogue Boards Differences

Models	Original Medea	Medea+OP1-BP
Year	2000	2011
DAC	AD1955 with Mutual Relation Correlation System	ESS9018 32bit with Mutual Relation Correlation System
I/V Conversion	Fully Balanced AD797	Fully Balanced 4pc x Discrete OP1-BP mounted on top of DAC chipset
Output Stage	Class A Discrete 8 Transistors	Fully Balanced 4pc x Discrete OP1-BP
Output Level	Max. +27dBu (17.35v RMS)	Max. +27dBu (17.35V RMS)
Backpanel trimmer	High/Low ; Front Panel 19 turns trimmers	-4dBu (0.49v) to +27dBu in 1dB steps
Analogue Topology	AD797(I/V) + Class A Transistors	Fully Discrete/Balanced OP1-BPs x 8pc
Heat Sink	2 Large heat sinks L/R (very hot)	Each Op1-BP independent + 4 output OP1-BPs on 2 larger heat sinks
SNR	117dB A-weight	132dB A-weighted

Other Differences

Models	Original Medea	Medea+OP1-BP
Front Panel	4 inputs select buttons & 2 trimmers	4 inputs select buttons & no trimmers
Digital Inputs	4 AES/EBU, 3 SPDIF, 1 Toslink	2 AES/EBU, 3 SPDIF, 1 Firewire, 1 ST Optical
Computer Source	No (Upgradable)	Yes (Firewire IEE1394)
Remote Control	No (Upgradable)	Yes (for Firewire Input)

Same Features

Models	Original Medea	Medea+OP1-BP
DSP	Sharc 40bit DSP	Sharc 40bit DSP
DSP Blocks	Upsampling / Dejittering	Upsampling / Dejittering
Up-sampling	DSP 2x : Oversampling 4x	DSP 2x : Oversampling 4x
Sampling rates	352.8kHz (44.1kHz)	352.8kHz (44.1kHz)

Millions dollar question: Why their outlooks are so similar but big differences inside?
Answer: Medea(Medea+) is Weiss flagship DAC, We want it to have a very long life span. 
Question: Almost 12 years are not long enough, are you serious ?
Answer: We are very serious, and all features are upgradable.

1) DSP & Digital Input Board

1. First Generation: Dual AES only for 176.4/192kHz
2. Second Generation: Single & Dual AES are supported for 176.4/192kHz

• Myth: Dual AES sounds better than signal hi-speed AES because it uses 2 AES cables
• Truth: Dual AES appeared before AES/EBU specification accepts single hi-speed at 192kHz. It has nothing to do with two is better than one. Single AES is better because it is simple, save 2nd AES cable and input phase matching.

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