Whirlwind LD410 Operation Manual Download Page 5

99 Ling Road - Rochester, NY 14612

800-733-9473 - 585-663-8820 - Fax: 585-865-8930

Website: http://www.whirlwindusa.com

Email: [email protected]

SPECIFICATIONS

Frequency Response  

-.6 dBv 20-20K Hz. 
-.1 dBv 50-10 K Hz 

Total Harmonic Distnoise 

<.004 % 20-20 K Hz. @ Unity gain 

Total Gain 

+38 dBv 

Range of level pot 

-38 to + 38 dBv 

Common Mode Rejection of Input 

< -72 dBv 20-20 K Hz. 

Maximum Input level 

+22 dBv 

Input Impedance 

40 K ohm balanced 

Maximum output level 

+22 dBv 

Output Impedance 

200 ohms balanced 

Noise at unity gain 

-85 dBv 

Noise at 14 dBv of gain 

-80 dBv 

Working signal to noise ratio (at 20 
dBv headroom) 

> 85 dBv 

Isolation between channels 

> 85 dBv 

Clip LED threshold 

+20 dBv 

Power consumption 

20 Watts Maximum 

Power requirements 

120 VAC 60 Hz or 230 VAC 50 Hz, factory set 

Size 

1 Rack unit (19X1.75X6.25”) 

Unit Weight 

6.5 Pounds 

Internal Mains fuse 

.2 Amp Slow blow type 3AG 

Shipping Weight 

8 Pounds 

Stereo Separation 

>90 dBv 20-20K Hz. 

 

Summary of Contents for LD410

Page 1: ...ers by allowing multiple outputs to receive their signals from a common input The LD410 has an internal power supply which can be set for 115VAC or 230VACbychanginginternaljumpers USAudio has made every effort to ensure that your equipment is received in the same perfect condition it was in when it left the factory Please inspect your product for signs of any damage during shipping and report them...

Page 2: ...ty allows the configurationofmanydifferentsignaldistributionschemes DESCRIPTION OF BLOCK DIAGRAM The standard factory configuration is that of a dual stereo 10dB to 4dB and 4dB to 10dB level converter Channels 1 2 5 and 6 convert 4dB balanced signals to 10dB unbalanced Channels 3 4 7 and 8 convert 10dB unbalanced signalsinto 4dBbalancedones From the routing jumpers the signal is applied to the gai...

Page 3: ...LD410 BLOCK DIAGRAM ...

Page 4: ...via internal jumpers to other output channels in addition to the normal output 7 RCA output jacks on outputs 1 2 5 and 6 deliver unbalanced signals from the line drivers and are controlled by the output gain pots The RCA outputs may be used simultaneously with the balancedoutputs see10 becausetheyhaveseparatedrivercircuits 8 RCA input jacks on inputs 3 4 7 and 8 take unbalanced input signals to th...

Page 5: ... K Hz Maximum Input level 22 dBv Input Impedance 40 K ohm balanced Maximum output level 22 dBv Output Impedance 200 ohms balanced Noise at unity gain 85 dBv Noise at 14 dBv of gain 80 dBv Working signal to noise ratio at 20 dBv headroom 85 dBv Isolation between channels 85 dBv Clip LED threshold 20 dBv Power consumption 20 Watts Maximum Power requirements 120 VAC 60 Hz or 230 VAC 50 Hz factory set...

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