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Furman HA-6A, Owner'S Manual

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MODEL HA-6A 

 
Owner’s Manual

 

 
 
Important Note: To obtain best results from this Furman Sound electronic 
product, please be sure to read this manual carefully before, using, it, 
Also, to be sure of obtaining full protection under the terms of the Limited 
Warranty in case your ownership documents are lost, please fill out and 
return the Warranty Registration

 

Card immediately'. Please verify that the 

serial number shown on the Warranty Card matches the serial number 
on your unit. 
 

I 
 

HA -6A SPECIFICATIONS 

 

OUTPUTS:   

Power: 

 
Connectors: 
 
INPUTS: 

Input Impedance: Sensitivity: Connectors: 

 
GENERAL: 

 

Distortion: 

 
Signal to Noise: Frequency Response Dynamic Headroom: 
 
Power Requirement: 
 
Mechanical: 
 
20 watts per channel, stereo, into either 4 ohms or 8 ohms, 20 Hz to 20 KHz. Speak-s A: 5-way binding posts (accommodates 
dual banana plug,,, spade lijgs, bare wires, etc.) Speakers B-Satellite/Remote: XLR. 
 

Summary of Contents for HA-6A

Page 1: ...Warranty Registration Card immediately Please verify that the serial number shown on the Warranty Card matches the serial number on your unit I HA 6A SPECIFICATIONS OUTPUTS Power Connectors INPUTS Input Impedance Sensitivity Connectors GENERAL Distortion Signal to Noise Frequency Response Dynamic Headroom Power Requirement Mechanical 20 watts per channel stereo into either 4 ohms or 8 ohms 20 Hz t...

Page 2: ...power amp which can save the expense of an extra power amp in many situations Its high power capacity allows it to provide adequate headphone listening levels without distortion in any environment Additionally the HA 6A s new toroidal transformer assures noise free performance It eliminates electrical hum and mechanical noise from the unit itself as well as leakage into other sensitive equipment s...

Page 3: ... channel the HA 6A s higher power can drive headphones of any impedance to their full rated listening level and do so with minimal noise and distortion Its power capacity is also just right for the small cube reference speakers used in most recording studios as a comparison with the main control room monitors it can power them without overpowering them On the studio floor a set of small monitor sp...

Page 4: ...nerally derived from a Cue or Headphone mixing buss on the recording console which is then routed to the Left and Right Inputs on the HA 6A s rear panel If this mix is mono connect it to the Left Input The HA 6A will then automatically be in mono mode so that the mix can be heard with both ears and both speakers if used In a small studio if no more than six sets of headphones are needed it may be ...

Page 5: ... 6A Language Labs Language labs occasionally need to drive as many as 50 headphone sets If more than twelve sets are required they should be high impedance types HR 2 Remote Stations provide a convenient way to place a volume control at each listening position two listeners can share each box Use of the HR 2 Remote Stations Satellites The HR 2 Remote Stations may be used to increase the number of ...

Page 6: ... until the LED remains off The lights turn on when the signal level at either output approaches 5 to 1 dB of clipping Once triggered the lights will stay lit for a minimum of 50 milliseconds so they can be easily seen even if the actual duration of the overload is much shorter HEADPHONE JACKS VOLUME CONTROLS Any type of headphones wired with a standard 1 4 stereo phone plug may be used successfull...

Page 7: ...anana plugs bare wires or wires terminated in spade lugs SPEAKER B SATELLITE R EMOTE OUTPUT This output is a single male XLR connector containing both the left and right channel outputs It is wired as follows Pin 3 left high Pin 2 right high and Pin 1 low common to both channels This output should be used as the starting point for a chain of HR 2 Remote Stations satellites It will receive signal w...

Page 8: ...rting the differential amp to a noninverting amp After the buffers the left and right signals proceed to the two decks of the stereo Input Level control The HA 6A s power amplification is derived from a pair of LM1875 integrated circuits which have internal short circuit and thermal overload protection They are set for a voltage gain of 26 dB The LM1875 s drive the speaker outputs directly The hea...

Page 9: ...it is insured We suggest that you save the original packaging and use it to ship the product for servicing Also please enclose a note giving your name address phone number and a description of the problem NOTE All equipment being returned for repair must have a Return Authorization R A Number To get an R A Number please call the Furman Service Department 707 763 1010 Ext 40 between 8 am and 5 pm U...

Page 10: ...tio Grapl I U PUNCH 10 Bass Enhancement Systum X 312 12 dB Crossover X 324 2 Way 3 Way 24 dB Cros voir X 424 3 Way 4 5 Way 24 d13 Cr r X 524 4 Way 24 dB Crossover C 1 28 Compressor Limiter LC 6 Stereo Compressor Gate QN 44 Quad Noise Gate SP 20A Stereo Halt Rack Power Amp 20W per channel HR 2 Headphone Passive Remote box MM 4A 4 x 1 Rack Mount Mixer MM 8A 4 x 2 Rack Mount Mixer DJM 6 DJ Production...

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