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Firestone Audio Fubar IV Plus
192 kHz Upsampling DAC / Headphone Amp with USB
and S/PDIF inputs
Ships Free to USA
$359.99 Black
$359.99 Silver
Take your listening experience to a whole new level with the Fubar IV Plus
The Fubar 4 Plus combines a 24 Bit DAC and Hi-End Headphone Amplifier into one spectacular unit. The 192 kHz upsampling feature lets you experience the most life-like and natural sound you'll hear from your digital sources. Inputs include USB and a high end 24 Bit / 96 kHz DAC with both Digital Coax and Toslink Optical inputs. Listen with your headphones from the 1/4" (6.4mm) jack or send your music directly to your stereo from the RCA outputs.
Fubar IV Plus Premium features include...
USB input - Play music directly from your computer via USB. Most users will requires no addition software or drivers. (Windows 7 requires updated drivers)
S/PDIF inputs - The Fubar 4 has inputs for both Digital Coax and Optical. A hi-end 24 Bit 96kHz DAC lets you listen to to your high definition downloads in the full resolution. You can also connect your CD and DVD player or any device with a digital output.
Headphone Output - connect your favorite headphones to the 1/4" (6.4mm) headphone jack.
192 kHz Upsampling - lets you enjoy a more life-like, natural presentations.
RCA Outputs - Using the Gold Plated RCA outputs you can connect the Fubar 4 Plus to your home stereo for playback over speakers.
Volume Control - Machined from a solid aluminum billet, controls the headphone output.
Gain Switch - The External gain switch lets you optimize the Fubar 4 Plus output for your headphones. Compatible with 32 - 600 Ohm headphones.
Changeable OpAmps - The OPA2604 OpAmp in the headphone amplifier section is changable allowing you to try the various OpAmps available including the OPA2627 SuperChip
Choice of Colors - Available in your choice of Black and Silver face plates.
Fubar IV Plus Specifications
Amplifier Structure: Coupling Capacitor Less / Push-Pull
Line Level Output: RCA output 2 Vrms
Gain Control: High setting (normal) / Low setting provides 20dB attenuation
Volume Control: Series / Shunt - user selectable (default is Series)
Headphone Impedance: 32 Ohm to 600 Ohm
Circuit Protection: Output Short / Over Current Protection
USB Support Format: 16 Bit - 32 / 44.1 / 48 kHz (compatible with Windows, Mac and Linux)
S/PDIF Support Format: 24 Bit / 96 kHz
Upsampling: up to 192 kHz
Input select: Auto Select - USB highest priority
USB Chip: CMedia - CM108
Reciever: Texas Instruments - DIR9001
ASRC Chip: Texas Instruments - SRC4192
DAC Chip: Cirrus Logic - CS4344
LPF OpAmp: National Semiconductor LM4562
Main OpAmp: Texas Instruments OPA2604
Servo OpAmp: Texas Instruments TL072
Fubar IV Plus Audio Performance
S/PDIF (Digital Coax and Toslink Optical input) - RCA outputs - (1 kHz Sinewave) 2 Vrms
Noise Level: (1 kHz A-weighted) -111.9 dB
Dynamic Range: (1 kHz A-weighted) -111.6 dB
THD%: 0.0018%
Stereo Crosstalk: -111.0 dB
S/PDIF (Digital Coax and Toslink Optical input) - Headphone output (1 kHz Sinewave 2 Vrms)
Noise Level: (1 kHz A-weighted) -99.7 dB
Dynamic Range: (1 kHz A-weighted) -99.6 dB
THD%: 0.0020%
Stereo Crosstalk: -90.0 dB
USB Input - RCA outputs (16 Bit / 48 kHz)
Noise Level: (1 kHz A-weighted) -96.2 dB
Dynamic Range: (1 kHz A-weighted) -96.2 dB
THD%: 0.0017%
Stereo Crosstalk: -94.1 dB
USB Input - Headphone output (16 Bit / 48 kHz)
Noise Level: (1 kHz A-weighted) -92.1 dB
Dynamic Range: (1 kHz A-weighted) -91.6 dB
THD%: 0.0020%
Stereo Crosstalk: -90.0 dB
Fubar IV Plus Connectivity
USB input (1)
S/PDIF Input - Digital Coax / Toslink Optical
Line Outputs - RCA Jacks (1 set) / Headphone Jack 1/4" (6.4mm)
Firestone Audio Fubar IV
Headphone Amp with USB and S/PDIF inputs
Ships Free to USA
$289.99 Black
$289.99 Silver
Take your listening experience to a whole new level with the Fubar IV
The Fubar 4 combines a multiple input DAC and Hi-End Headphone Amplifier into one exceptional unit. Listen to music direct from your computer USB or use the 24/96 Digital Coax and Toslink Optical inputs. The Fubar 4 lets you listen with your headphones from the 1/4" (6.4mm) jack or send your music directly to your stereo from the RCA outputs.
Fubar IV Premium features include...
USB input - Play music directly from your computer via USB. Most users will requires no addition software or drivers. (Windows 7 requires updated drivers)
S/PDIF inputs - The Fubar 4 has inputs for both Digital Coax and Optical. A hi-end 24 Bit 96kHz DAC lets you listen to to your high definition downloads in the full resolution. You can also connect your CD and DVD player or any device with a digital output.
Headphone Output - connect your favorite headphones to the 1/4" (6.4mm) headphone jack.
RCA Outputs - Using the Gold Plated RCA outputs you can connect the Fubar 4 to your home stereo for playback over speakers.
Volume Control - Machined from a solid aluminum billet, controls the headphone output.
Gain Switch - The External gain switch lets you optimize the Fubar 4 output for your headphones. Compatible with 32 - 600 Ohm headphones.
Changeable OpAmps - The OPA2604 OpAmp in the headphone amplifier section is changable allowing you to try the various OpAmps available including the OPA2627 SuperChip
Choice of Colors - Available in your choice of Black and Silver face plates.
Fubar IV Specifications
Amplifier Structure: Coupling Capacitor Less / Push-Pull
Line Level Output: RCA output 2 Vrms
Gain Control: High setting (normal) / Low setting provides 20dB attenuation
Volume Control: Series / Shunt - user selectable (default is Series)
Headphone Impedance: 32 Ohm to 600 Ohm
Circuit Protection: Output Short / Over Current Protection
USB Support Format: 16 Bit - 32 / 44.1 / 48 kHz (compatible with Windows, Mac and Linux)
S/PDIF Support Format: 24 Bit / 96 kHz
Input select: Auto Select - USB highest priority
USB Chip: CMedia - CM108
Reciever: Texas Instruments - DIR9001
DAC Chip: Texas Instruments - PCM1754
LPF OpAmp: Texas Instruments - PCM2134
Main OpAmp: Texas Instruments OPA2604
Servo OpAmp: Texas Instruments TL072
Fubar IV Audio Performance
S/PDIF (Digital Coax and Toslink Optical input) - RCA outputs - (1 kHz Sinewave) 2 Vrms
Noise Level: (1 kHz A-weighted) -95.4 dB
Dynamic Range: (1 kHz A-weighted) 95.1 dB
THD%: 0.0032%
Stereo Crosstalk: -95.8 dB
S/PDIF (Digital Coax and Toslink Optical input) - Headphone output (1 kHz Sinewave 2 Vrms)
Noise Level: (1 kHz A-weighted) -94.0 dB
Dynamic Range: (1 kHz A-weighted) 94.0 dB
THD%: 0.0032%
Stereo Crosstalk: -80.6 dB
USB Input - RCA outputs (16 Bit / 48 kHz)
Noise Level: (1 kHz A-weighted) -93.8 dB
Dynamic Range: (1 kHz A-weighted) 93.3 dB
THD%: 0.0035%
Stereo Crosstalk: -93.5 dB
USB Input - Headphone output (16 Bit / 48 kHz)
Noise Level: (1 kHz A-weighted) -90.4 dB
Dynamic Range: (1 kHz A-weighted) 90.4 dB
THD%: 0.0038%
Stereo Crosstalk: -80.7 dB
Fubar IV Connectivity
USB input (1)
S/PDIF Input - Digital Coax / Toslink Optical
Line Outputs - RCA Jacks (1 set) / Headphone Jack 1/4" (6.4mm)
Firestone Audio Fubar III
USB DAC / Headphone Amplifier
Ships Free to USA
$239.99 Black
$239.99 Silver
With The Fubar III USB DAC / Headphone Amp You’ll Enjoy Hi Fidelity Music Direct From Your Computer To Your Home Stereo or Use The Built in Headphone Amp and Your Favorite Headphones. Perfect at Home or for your Office, Dorm and Cottage.
The Fubar 3 USB DAC / Headphone Amp combines a superb USB DAC and Hi-End headphone amp into one amazing component. You get a powerful, great sounding headphone amp plus RCA outputs let you connect to powered speakers and your home stereo. The volume control also controls the output at the RCAs, this lets the Fubar 3 function as a pre amp.
Plug and Play Installation Requires NO Additional Software or Drivers!
The Fubar 3 USB DAC / Headphone Amp lets you connect your computer to your Amplifier and stream your entire music library with remarkable fidelity! Enjoying “High End” sound from your computer has never been easier! With the Fubar 3 you simply plug and play without having to install additional software or drivers.
The Fubar 3 takes the digital signal from your computer and coverts it to a high quality analog output that connects to any amp or preamp or use the built in headphone amp and listen with your favorite headphones. The full size USB connection is fully compatible with Windows, Mac and Linux.
The Fubar 3 lets you play all your stored music from iTunes, Windows Media Player and other music programs. Listen to your favorite Podcasts, Internet Radio, even CD’s and DVD’s. Perfect for use at home at the office, cottage, dorm, practically everywhere!
The 2009 Fubar 3 uses the highly aclamed NS LM4562 OpAmp in the DAC section and the Burr Brown OPA2604 opamps in the headphone amp module. The OPA2604 is exchangeable allowing you to “roll OpAmps" and customize the sound to your taste.
The specially designed power supply section ensures a minimum of interference for noise free listening.
Compatible with your Favorite Headphones
The Fubar 3 is optimized for a wide range of headphone impedances. From the Etymotic ER4P (27 ohm) to the AKG K240DF (600 ohm), the high bandwidth, extreme low noise design (lower than -110db) yields greater than 105 dB of dynamic range and exceeds the capabilities of the human ear. This ensures it can handle even the most difficult headphones.
Two gain settings, selectable by a convenient rear panel switch, allow for quick and easy optimization for high or low efficiency headphones.
To satisfy us tweakers, the Fubar 3 features user changeable headphone opamps and a Shunt/Series type volume control. Other features include Short Circuit and Thermal protection.
Built to Last
As with all Firestone components the Fubar 3 is manufactured with a solid aluminum chassis and features an anodized aluminum face plate. The volume knob is also machined from solid aluminum for a high quality look and feel.
Fubar III Specifications
USB DAC Chip Burr Brown (TI) - PCM2702 DAC, 16 Bit 44.1 KHz / 48KHz sampling
OpAmps National Semiconductor - LM4562
Output Voltage - 6 Vrms
Output Current - 100 mA
Output Impedence - 10 Ohm
Circuit Specific - Independent regulators for digital and analog circuits, DC amp uses no coupling capacitors
Frequency Response - 10Hz~25KHz ,-1dB at 600 ohms loading, low noise -99dB(A)
Class - Class AB / DC amplifier, uses no coupling capacitors
Output Resistance - Extra low output resistance (Zo < 0.05 ohms),high current capacity 800mA per channel
Frequency Response - 6Hz~300Khz ,-1dB at 32 ohms loading, very low noise -110dB (A)
Max. output - 6Vrms external gain control switch
Headphone Impedance - 8 - 600 Ohms (See headphone matching chart for additional information)
Size - 11cm/4.3in(L) x 8cm/3.2in(W) x 5cm/2.0in(H)
Weight - Fubar 3 only 350g / 12.3oz
Weight - Total Package 980g / 34.5oz
Fubar III Additional Features
Volume control internal switch for Series or Shunt (adjust to suit your taste)
Headphone Amp OpAmp is changeable! You can tune the tone to suit your taste
100 - 240Vac 50/60 Hz external power supply included
External gain switch make it easy to match low or high impedance headphones
Short circuit and thermal protection
Firestone Audio Fubar I/O
USB DAC / ADC
Ships Free to USA
$189.99 Black
$189.99 Silver
Transfer Your Vinyl Records to Your Computer Hard Drive With CD Quality!
The Fubar I-O is a High-Quality device that provides exceptional performance for both Digital to Analog and Analog to Digital Convertion. Using USB you simply Plug and Play without installing additional drivers ( compatible with Linux, Mac and Windows operating systems). The Fubar I-O provides a full-duplex system which allows communication in both directions. The Analog to Digital function lets you transfer your entire vinyl and tape collection to your computer hard drive with CD quality. Then use the Digital to Analog function to playback your computer music on your home stereo with remarkable fidelity. Very Cool!
Need Recording Software For your Fubar I/O?
Get Audacity for Free! Audacity is an excellent, easy to use and FREE software program you can use to record and edit with your Fubar I/O. Available for PC, MAC and Linux/Unix operating systems.
Fubar I/O Specifications
Amplifier Structure - Low pass filter with 2Vrms output
Power Structure - Virtual-Ground power supply
Playback Support Format - 16-bit, 32 / 44.1kHz / 48kHz
Recording Support Format - 16-bit, 8 / 11.025 / 16 / 22.05 /32 /44.1 /48kHz
Circuit Protection - Output short / over current protection
USB Chip - Texas Instruments - PCM2902
OpAmp Chip - National Semiconductor - LM4562
Fubar I/O Audio Performance
Playback (1kHz sine wave, 2Vrms output, 16-bit / 48kHz)
Frequency response: 40Hz +0.05dB, 15kHz -0.13dB
Noise level: (1kHz, A-Weighted) : -94.0dB
Dynamic range: (1kHz, A-Weighted) : 94.0dB
THD%: 0.0072%
Stereo Crosstalk: -94.7dB
Recording (1kHz sine wave, 2Vrms output, 16-bit / 48kHz)
Frequency response: 40Hz +0.04dB, 15kHz -0.16dB
Noise level: (1kHz, A-Weighted) : -91.1dB
Dynamic range: (1kHz, A-Weighted) : 91.3dB
THD% : 0.0090%
Stereo crosstalk : -88.1dB
Fubar I/O Connectivity
USB interface (USB V1.1 minimum)
Analog Output: 1 - RCA - Playback jack
Analog Input: 1 - RCA - Recording jack
System Requirements (minimum)
* Intel® Pentium® 2, Celeron® 800MHz or higher computer system
* Microsoft® Windows 2000® (Service Pack 4), Mac and Linux
* 128MB RAM
* Available USB port
Firestone Audio Fubar II
USB DAC
Ships Free to USA
$159.99 Black
$159.99 Silver
Simple Installation Requires NO Additional Software or Drivers!
The Fubar 2 USB DAC lets you connect your computer to your Audio Amplifier and stream your entire music library with remarkable fidelity! Enjoying “High End” sound from your computer has never been easier! With the Fubar 2 you simply plug and play without having to install additional software or drivers. The Fubar 2 takes the digital signal from your computer and coverts it to a high quality analog output that connects to any amp or preamp. The full size USB connection is fully compatible with Windows, Mac and Linux. We've even included the USB Cable and a set of high quality interconnects to get you started.
The Fubar 2 lets you play all your stored music from iTunes, Windows Media Player and other programs. Listen to your favorite Podcasts, Internet Radio, even CD’s and DVD’s. Perfect for use at the office, cottage, dorm practically everywhere! This is the latest Version of the Fubar 2 with improved power regulation and LPF circuits. The analog output uses the industry standard Burr Brown OPA2604AP opamp which is fully exchangeable allowing you to “roll” opamps and customize the sound to your taste. The specially designed power supply section ensures a minimum of interference for noise free listening.
Fubar II Specifications
Digital to Analog - Burr Brown PCM2702 DAC, 16 Bit 44.1 KHz / 48KHz sampling rates
OpAmp - National Semiconductor LM4562
Circuit Specifics - Independent regulators for digital and analog circuits, DC amp uses no coupling capacitors
Output Voltage - 2 Vrms
Output Current - 30 mA
Output Impedence - 100 -200 Ohms
Frequency Response - 10Hz~25KHz ,-1dB at 600 ohms loading, low noise -99dB(A)
Size - 11cm/4.3in(L) x 8cm/3.2in(W) x 5cm/2.0in(H)
Weight - 300g / 10.6oz
100-240Vac 50/60 Hz external auto-switching power supply included
Short circuit and thermal protection
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