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The BlockHead Owner’s Manual

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The BlockHead is the world’s first and only commer-

cially available fully balanced, double dual-mono,

mono-block headphone amplifier. While it’s finesse

and depth of imaging are a significant improvement

over anything we’ve previously experienced with

dynamic headphones, it’s the BlockHead’s Adam’s

apple wobbling bass reproduction and eye blinking

impact that have us re-thinking everything we

thought we knew about headphones.

obsessed headphone geeks at your service.

www.headphone.com

Headphone Amplifier
HeadRoom Corporation

The BlockHead Owner’s Manual

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Содержание BlockHead

Страница 1: ...of imaging are a significant improvement over anything we ve previously experienced with dynamic headphones it s the BlockHead s Adam s apple wobbling bass reproduction and eye blinking impact that have us re thinking everything we thought we knew about headphones obsessed headphone geeks at your service www headphone com Headphone Amplifier HeadRoom Corporation The BlockHead Owner s Manual ...

Страница 2: ...2 800 828 8184 www headphone com A Tour of Your HeadRoom BlockHead Amp 2 Gain Switch 3 Processor Switch 1 Volume Control 7 LED 1 6 5 4 3 2 4 Filter Switch 6 The Headphone Jack 5 Phase Switch ...

Страница 3: ...e OFF position when using the headphone amp as a preamp 4 The Filter Switches The filter switch is used to compensate for the warming action of the processor In the center position there is no filter in the circuit generally this is preferred But if the processor is causing too much bass or blurring of the central image a mild high frequence boost filter can be turned on The bright setting accentu...

Страница 4: ...4 800 828 8184 www headphone com 1 Power Switch DC Input 3 Line In 4 Ground Lift Switch 5 Crossfeed Out 2 Voltage Indicator 6 Crossfeed In BlockHead Rear Panel 3 5 6 4 2 1 ...

Страница 5: ...e the Ground Lift Switch should be on float 5 Crossfeed Out 6 Crossfeed In Sennheiser 600 s with Custom XLR Cables The crossfeeds ennable the audio image processor to work with the BlockHead Use the supplied 1ft Dimarzio cables to loop one block to the other Rear Panel Since the BlockHead is a fully balanced amplifier you must have balanced outputs on your headphones Currently Sennheiser 600 s and...

Страница 6: ...ght channel return current will develop a signal across the series resistance of the common return path which muddies the stereo presentation on headphones with cross talk When evaluating headphones one thing you can look for is having the join of the left and right common return at the plug rather than within the headphones It is this headphone connector found on all headphones that makes it impo...

Страница 7: ...scussion about high performance audio op amps very low temperature coefficient 1 metal film resistors and matched polyphenoline sulphide film capacitors in the signal path Nobel potentiometer Neutrik connectors three step gain control for volume control optimization of various efficiency headphones three step filter control HeadRoom psychoacoustic processor circuit and much more And optionally ava...

Страница 8: ...d Your amp has a processor because it makes headphone listening much more natu ral When listening to speakers you hear both the left and the right signals in both ears Not so with headphones When you stick a pair of speakers directly to your ears i e headphones you lose the spatial acoustic cues your mind needs to locate sounds in space Why Does Your Headphone Amp Have a Processor without HeadRoom...

Страница 9: ...oments with the Processor off Now switch the Processor on and hear the difference pause for experimentation See it really is doing something dramatic Upgrading your BlockHead The stepped attenuator is an available upgrade for our high end headphone amplifiers We use the Nobel potientiometer on our high end amps and its performance is very good but not perfect In order to elevate the per formance o...

Страница 10: ...ty If you have any problems with your headphone listening system please first call us at 1 800 828 8184 We will try to diagnose the problem over the phone which can save both of us considerable time effort and money If the equipment must be returned for repair we will authorize a return for you HeadRoom is the only authorized service center for HeadRoom products either in or out of warranty If a u...

Страница 11: ...sation of pressure or fatigue give them a rest for a couple of days or until they feel fresh These symptoms are your body telling you that your ears need a break Should you choose to ignore these symptoms you are risking permanent hearing damage As a general rule sound pressure levels under 80 decibels will not damage hearing even if listened to continually On the other hand anything over 100 deci...

Страница 12: ...nt you are keeping In other words we don t give full price refunds on products purchased at a discount If you are doing a partial return and exchange for other product you will be eligible for all discounts that would apply to the set of products that you end up keeping Products must be returned to us within 30 days of the date you receive the product SO if you think you might want to return somet...

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