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Firestone Audio Cute Beyond
Single Ended Class A Headphone Amp
Ships Free to USA
$209.99 Black
$209.99 Silver
Remarkable Hi-End Sound - Compatible With All Headphones
The Cute Beyond is compatible with a wide range of source components. Use it with everything from your laptop to your high end CD player. For a transformational experience hook it up to your iPod, MP3 player or other portable device, you'll be astounded at the improvement in sound quality.
The Cute Beyond is optimized for a wide range of load impedances, and is suitable for headphones from 27 - 600 ohms.
This high bandwidth, extreme low noise design (lower than -104db) yields greater than 104 dB of dynamic range and exceeds the capabilities of human hearing.
Two gain settings, selectable by a rear panel switch, allow for quick and easy optimization for high or low efficiency headphones.
To satisfy the tweakers among us the Cute features user changeable opamps and a Shunt/Series type input volume control to suit different tastes.
Built to Last
As with all Firestone components the Cute Beyond 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.
Cute Beyond Features include...
Class A Single Ended Circuit
1/4" (6.4mm) headphone jack
Gold Plated RCA Inputs
Extreme Low Noise design reveals low level detail you may be missing with other headphone amps
Available with Black or Silver face plate
Volume Control is adustable for series and shunt mode (Changes how the circuit "sees" the volume control)
User changable OpAmps
High / Low gain setting lets you optimize for low or high efficiency headphones
High current design makes the Cute Beyond perfect for use with low impedance headphones
Cute Beyond Specifications
Circuit Design - Single Ended, Class A, uses no coupling capacitors
Main Op-Amp - Burr Brown OPA2604 - Interchangeable
Output Resistance - Extra low output resistance (Zo < 0.05 ohms),high current capacity
Frequency Response - 6Hz~300Khz ,-1dB at 100 ohms loading, very low noise
Max. output - 6Vrms (with 24 VDC Power Supply)
Headphone Impedance - 26 - 600 Ohms (See headphone matching chart for additional information)
Stereo Crosstalk - -90.0 dB Dynamic Range 104.6 dB (1 KHz A-wieghted)
Total Harmonic Distortion - 0.0018%
Noise Level - -104.7 dB (1 KHz A-wieghted)
Size - 11cm / 4.3in(L) x 8cm / 3.2in(W) x 5cm / 2.0in(H)
Shipping Weight - 720g / 25.4oz
Cute Beyond Additional Features
Volume control internal switch for Series or Shunt (adjust to suit your taste)
OpAmps exchangeable! You can tune the tone to suit your taste
100 - 240Vac 50/60 Hz power supply included
External gain switch make it easy to match low or high impedance headphone. The Low Gain position provides 20dB attenuation.
Short circuit and thermal protection
Firestone Audio Cute Curve
Class B Headphone Amp
Ships Free to USA
$209.99 Black
$209.99 Silver
Remarkable Hi-End Sound - Compatible With All Headphones
Cute Curve is a Class-B Headphone Amplifier with push-pull structure, and low noise/low distortion features. Adopting both Series and Shunt types lets the user select their ideal Volume Control setting. High electric current output can drive headphones of any impedance. OP amplifier can be changed by yourself to turn the tone. The Cute Curve lets you enjoy high-quality and awesome sound.
Built to Last
As with all Firestone components the Cute Curve 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.
Cute Curve Features include...
Class A Single Ended Circuit
1/4" (6.4mm) headphone jack
Gold Plated RCA Inputs
Extreme Low Noise design reveals low level detail you may be missing with other headphone amps
Available with Black or Silver face plate
Volume Control is adustable for series and shunt mode (Changes how the circuit "sees" the volume control)
User changable OpAmps
High / Low gain setting lets you optimize for low or high efficiency headphones
High current design makes the Cute Beyond perfect for use with low impedance headphones
Cute Curve Specifications
Amplifier Structure - Coupling capacitor less, Push-Pull with Class-B
Power Structure - Virtual-Ground power supply
Gain Control - Low (attenuation 20dB) / High (normal)
Volume Control - Series / shunt mode selectable
Headphone Impedence - 32 ohm to 600 ohm
Circuit Protect - Output short / over current protect
Main OPAmp - TI - OPA2604
Servo OPAmp - TI - TL072
Audio Performance - (1kHz sine wave, 2Vrms output)
Frequency response (From 40Hz to 15kHz) - 40Hz +0.01dB, 15kHz -0.02dB
Noise level (1kHz, A-Weighted) - -104.7dB
Dynamic range (1kHz, A-Weighted) - 104.6dB
THD% - 0.0018%
Stereo crosstalk - -90.0dB
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