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BUDA impedance and output spec

post #1 of 14
9/15/10 at 6:36pm
Thread Starter 
Hi Gorge or Travis:

I've been looking for impedance spec for my BUDA and I don't think it is included on your web under BUDA spec section. I would like to know for balance and SE output, what is the impedance and power output on the BUDA , it will help me to decide how to match the kind of headphone I am interested in. Or you can direct me to find the info. I use the DPS with the BUDA. thank you.
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post #2 of 14
10/19/10 at 11:39am

Hi Jalo,

 

HeadRoom BUDA Specs:

 

Input impedance at 1kHz = 50K

 

Output impedance at 1kHz = 0.5~0.6 Ohms

 

Maximum Power Output = approx 19V rms

 

Frequency Response = 10Hz ~ 50,000kHz (+/- 0.3dB)

THD at 1V Output = <0.002%

 

Cheers,

jorge

HR Sales & Service Manager

HeadRoom was founded in 1992 & manufactures headphone amps, DACs, and accessories; and sells headphones & related personal audio gear. We offer exceptional products, customer service, & information.
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post #3 of 14
10/20/10 at 9:38am
Thread Starter 

Thanks Jorge, I continue to enjoy the BUDA.  It's is a great amp especially paired with the UDAC.  My HD800 and LCD2 both sounded awesome.  I really don't think I can improve too much on the SQ.  It is about 99% of what I expect real sound to be. 

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post #4 of 14
3/15/11 at 10:14pm
Quote:
Originally Posted by JorgeC View Post...

 

HeadRoom BUDA Specs:

 

Input impedance at 1kHz = 50K

 

Output impedance at 1kHz = 0.5~0.6 Ohms

 

Maximum Power Output = approx 19V rms

 

Frequency Response = 10Hz ~ 50,000kHz (+/- 0.3dB)

THD at 1V Output = <0.002%

...

Sorry to revive an old thread but I had a follow-up question on the Maximum power output.

That 19V rms seems way too high, or is that 19V p-p?

Also, is that 19V single-ended or balanced?

 


Edited by USAudio - 3/17/11 at 5:02pm
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post #5 of 14
3/28/11 at 6:15pm

Is HeadRoom still monitoring this forum?


 

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post #6 of 14
3/29/11 at 7:02pm
Quote:
Originally Posted by USAudio View Post

Sorry to revive an old thread but I had a follow-up question on the Maximum power output.

That 19V rms seems way too high, or is that 19V p-p?

Also, is that 19V single-ended or balanced?

 


Hi USAudio,

 

The HeadRoom BUDA [Balanced Ultra Desktop Amp] output spec is rated 19v in true balanced mode... Hope that helps!

 

jorge

HR Operations Manager
 

 

HeadRoom was founded in 1992 & manufactures headphone amps, DACs, and accessories; and sells headphones & related personal audio gear. We offer exceptional products, customer service, & information.
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post #7 of 14
3/29/11 at 9:26pm
Quote:
Originally Posted by JorgeC View Post


Hi USAudio,

 

The HeadRoom BUDA [Balanced Ultra Desktop Amp] output spec is rated 19v in true balanced mode... Hope that helps!

 

jorge

HR Operations Manager
 

 

Hi Jorge,

Can you confirm that that's 19v P-P or RMS?

Thanks!

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post #8 of 14
3/30/11 at 7:00pm

Hi USAudio,

 

i will confirm with our original audio engineer for this topology design Joe W. asap, but our listed specs show BUDA max output rated rms

 

:)

 

 

Cheers,

 

jorge

HR Operations Manager

HeadRoom was founded in 1992 & manufactures headphone amps, DACs, and accessories; and sells headphones & related personal audio gear. We offer exceptional products, customer service, & information.
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post #9 of 14
3/30/11 at 9:36pm

If that is indeed 19v RMS, that would mean BUDA puts out 11 watts RMS balanced into 32 Ohms and almost 3 watts RMS single-ended ???  
There are many new high-power amps coming out to drive the orthodynamics, have you guys tried BUDA with the orthos like the HE-6 and LCD-2?
Assuming the above numbers are correct, it seems like BUDA should drive them with authority as well.  
If so, IMHO you guys should really be advertising that by putting those specs on your website and promoting that BUDA is a good option for driving orthos!

 

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post #10 of 14
4/1/11 at 9:46am

Hi USAudio,

 

The BUDA max output spec is actually 10v rms in single-ended mode. My apologies for the confusion, i was looking at our HeadRoom Desktop Balanced Amp w/DAC specs [19v] from a few yrs ago; that design

was officially discontinued by us in early 2009 due to low sales.  frown.gif

 

We have indeed used the BUDA unit with all the new planar magnetic "orthodynamic" headphones with fabulous audio results; the 'high gain' setting on the Desktop Amp drives any of those power-hungry cans effortlessly

with rich tonal detail and deep transparency -- especially when in true balanced mode!

 

Cheers,

 

jorge

HR Ops

HeadRoom was founded in 1992 & manufactures headphone amps, DACs, and accessories; and sells headphones & related personal audio gear. We offer exceptional products, customer service, & information.
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post #11 of 14
4/1/11 at 10:00am

Hi Jorge,
No apology necessary, just trying to clarify the specs, thanks for the info! 

Please consider posting more detailed BUDA technicial specifications on your website since they are very good.  Output power, output impedance, headphone impedance range, gain, etc. would be useful.

Still, 10v RMS Single Ended (3+ Watts RMS into 32 Ohms) is nothing to sneeze at.  Amps targeted at orthos is a hot category right now, you should toot your BUDA horn in that arena!

Follow up questions:
So at 10v RMS, and given the fully balanced design of the BUDA, can I correctly assume we're talking 40v RMS BALANCED???

What about those other specifications given earlier such as Output impedance, FR, THD, etc.  Were they for the older unit as well or did they apply to the current BUDA?


Edited by USAudio - 4/2/11 at 11:21pm
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post #12 of 14
4/4/11 at 4:45pm

Hey USAudio,

 

Thanks for the kind reply!

 

The other BUDA specs have been 100% confirmed by our HR audio engineer / topology designer for the unit -- with one exception:

The actual BUDA input impedance at 1kHz is 70k Ohms (not 50k Ohms) evil_smiley.gif

 

 

Here's another confirmed BUDA spec not listed in this thread:

 

Max Input Level at 1kHz = 3v

 

 

We do indeed plan to do a big HeadRoom Marketing push for the BUDA with planar-magnetic cans... Please stay tuned!

 

Cheers,

jorge

HR Operations Manager

 

 

HeadRoom was founded in 1992 & manufactures headphone amps, DACs, and accessories; and sells headphones & related personal audio gear. We offer exceptional products, customer service, & information.
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post #13 of 14
4/4/11 at 5:19pm
Quote:
Originally Posted by JorgeC View Post

Hey USAudio,

 

Thanks for the kind reply!

 

The other BUDA specs have been 100% confirmed by our HR audio engineer / topology designer for the unit -- with one exception:

The actual BUDA input impedance at 1kHz is 70k Ohms (not 50k Ohms) evil_smiley.gif

 

 

Here's another confirmed BUDA spec not listed in this thread:

 

Max Input Level at 1kHz = 3v

 

 

We do indeed plan to do a big HeadRoom Marketing push for the BUDA with planar-magnetic cans... Please stay tuned!

 

Cheers,

jorge

HR Operations Manager

 

 

So to summarize the BUDA specifications:

 

Input impedance at 1kHz = 70K Ohms

Output impedance at 1kHz = 0.5 ~ 0.6 Ohms

Maximum Power Output = 10V RMS, Single-Ended

Frequency Response = 10Hz - 50,000kHz (+/- 0.3dB)

THD at 1V Output = < 0.002%

Max Input Level at 1kHz = 3v

 

Nice numbers.  But no matter how nicely I ask, you're not going to give me the Balanced Maximum output power figure, are you ... ?!?  confused.gif

 

Looking forward to the BUDA Marketing push and perhaps ... a SALE on BUDAs?!?!  =)


Edited by USAudio - 4/8/11 at 8:38am
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post #14 of 14
5/2/11 at 1:32pm
Quote:
Originally Posted by JorgeC View Post
...

We do indeed plan to do a big HeadRoom Marketing push for the BUDA with planar-magnetic cans... Please stay tuned!

 

Cheers,

jorge

HR Operations Manager

Any word on this?


 

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