Ramsa Ramsa WR-DA7 Service Manual

SPECIFICATIONS

General

Power requirement :

AC 220 – 240 V 50 Hz

Power consumption :

105 W (with options)

Frequency response :

20 Hz - 20 kHz, +1 dB - –2 dB

T.H.D. (total harmonic distortion) :

Less than 0.1 % (input = +10 dB/1 kHz, output = +4 dB/RL 600 

Ω

)

Equivalent input noise :

–128 dB (Rs = 150 

Ω

Input sensitivity = –60 dB typical)

Residual noise :

–93 dB typical

Maximum voltage gain :

84 dB: MIC/LINE(1-16) in to BUS out

84 dB: MIC/LINE(1-16) in to MASTER out

84 dB: MIC/LINE(1-16) in to AUX out

Common Mode Rejection Ratio :

More than 80 dB (1kHz)

Crosstalk :

90 dB typical (1kHz)

Dynamic Range (Fs = 48kHz, DIN audio filter) :

113 dB typical : DA converter (digital in to analog out)

112 dB typical : AD converter (analog in to digital out)

110 dB typical : AD + DA (analog in to analog out)

AD Converter :

24 bit, 64 times oversampling (input 1 to 16)

20 bit, 64 times oversampling (aux returns 3 to 6)

DA Converter :

24 bit, 64 times oversampling (MASTER, MONITOR A)

24 bit, 128 times oversampling (MONITOR B)

20 bit, 128 times oversampling (aux returns 3 to 6)

Internal signal processing :

32 bit (Dynamic range 192 dB)

Sampling Frequency (Fs) :

Internal: 44.1 kHz and 48 kHz

External: 44.1 kHz ± 6 % and 48 kHz ± 6 %

Signal delay :

Less than 2.5 ms, MIC/LINE input to MASTER out

Audio  Mixer

WR-DA7

ORDER NO. AVS9807114C8

C

1 9 9 8     M a t s u s h i t a   C o m m u n i c a t i o n   I n d u s t r i a l   C o . ,   L t d .

A l l   r i g h t s   r e s e r v e d .   U n a u t h o r i z e d   c o p y i n g   a n d

d i s t r i b u t i o n   i s   a   v i o l a t i o n   o f   l a w .

The Meter Bridge shown in photo is one of the optional accessories.