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iFi AUDIO micro iTube2 Tube Pre-Amplifier
the iFi Audio micro iTube 2 is designed to bring the sound and feel of tubes to the listening environment, providing a tube preamp, a tubed output stage, a tube buffer, and impedance matching. It accepts RCA inputs and outputs, and is designed to be inserted at various points along the chain. For instance, user can use the device as the sole preamp, or in conjunction with a solid-state preamp to inject the tube sound on the output stage. To accomplish this, the iTube 2 provides switchable settings: SET gives user the sound of single-ended triode power amplifier, while push-pull gives user the sonics of a push-pull power amplifier. Alternately, user can choose to effect the sound of a classic, low-distortion tube preamplifier.
- Tube Preamp, Tube Power Amp & More
- 1 x GE5670 Tube
- 2 x RCA Inputs, 2 x RCA Outputs
- Large Analog Volume Controller
- SET, Push Pull & Classic Tube-Amp Sounds
- XBass+ for Improving Low-End in Speakers
- 3D Holographic+ for Increasing Width
- Direct-Coupled PCB, Low-Distortion Caps
- Configurable via DIP-Switches
- Included Quiet iPower 15V Power Supply
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Technical Specification
- Type: DAC Amplifier
- Audio I/O: 2 x RCA inputs 2 x RCA outputs
- Tube: 1 x NOS GE 5670
- Maximum Output: > 7.8 V (> +20 dBu)
- SNR: 119 dB (A-weighted), re. 2 V, buffer, 0 dB gain
- DNR: 31 dB (A-weighted), re. +20 dBu, buffer, 0 dB Gain
- THD+N: <0.009% (re. 2 V, buffer, 0 dB gain, A-weighted)
- Frequency Response: < 10 Hz to > 200 kHz (-1 dB) 20 Hz to 20 kHz (±0.003 dB)
- Input Impedance Preamp: 100 kOhms
- Output Impedance Stage: < 1 Ohm
- Corrected: < 150 Ohms
- Input Voltage: 100-240 VAC, 50 / 60 Hz
- Power Consumption Idle: < 4 W
- Max: 10 W
- Dimensions (L x W x H): 6.9 x 2.6 x 1.1" / 175.0 x 67.0 x 28.0 mm
- Weight: 9.8 oz / 278.0 g
- Warranty: 1 year
What Is In The Box
- iFi AUDIO micro iTube2 Tube Pre-Amplifier, Buffer & Power Amp
- iPower 15V Power Supply
Videos
Manufacture Description
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| Heart of the iTube2 | First time ever to select SET, Push-Pull or Classic |
Both Analogue Signal Processing circuits new and improved |
ELNA Silmics and TDK C0G capacitors |
The original iTube became the ‘go to’ tube buffer for any and every home audio system. We have redesigned the micro iTube2 with new parts and new circuitry using trickle-down technology from the flagship ‘Pro’ series. Only the GE5670 tube remains.
The micro iTube2 is a tubed output stage, tube preamp, tube buffer AND an impedance-matching device all in one. There is nothing like it. You can put the micro iTube2 before a solid-state preamp and another one after it, creating the effect of tubing the whole audio chain. Or you can choose to simply use the micro iTube2 as a very high-quality preamp by itself.
The micro iTube2 sounds by and far, like a tube amplifier ‘done right with the inimitable magic of tubes.‘ Tonality and heft, especially in the mid-range and bass frequencies are increased to elevate the whole audio system from $100k to $1k. The micro iTube2 injects a serious does of tube magic into any audio system.
| ‘Magic’ of SET, Push-Pull or Classic Tube sound | |||||||||||||||||
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In the ‘magic of tubes’ listening stakes, the iTube2 offers the listener the choice of different key sonic signatures:
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| XBass+® matrix for Speakers, new and improved | |||||||||||||||||
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XBass+® for Speakers is quite different to its sister technology XBass+® for Headphones. The only similarity is in philosophy as the ability to enhance your Speaker listening is quite different to enhancing Headphone listening.
The former gives each and every audio system adjustable levels of bass control to enhance listening enjoyment through speakers that have limited bass extension. We have taken great care to ensure no degradation in sound quality occurs.
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| 3D Holographic+® matrix for Speakers | |||||||||||||||||
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The latest 3D Holographic+ matrix for Speakers offers something quite special. It takes high-end systems to another level of performance. It was drawn from the original ground-breaking work of Alan Blumlein, the ‘father of stereo.’
Firstly, it corrects the fundamental spatial distortion in recordings. And secondly, it increases the width of the soundstage beyond that of the speaker placement.
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| Brand-new PCB, Direct-Coupled for purest signal path | |||||||||||||||||
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The iTube2, in-line with the latest iFi products, is ‘Direct-Coupled.’ This means no output coupling capacitor for the purest, most direct signal path. | ||||||||||||||||
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| Furthermore, the iTube2 is virtually a whole new product as the circuitry and components have been radically changed and it now is more closely connected to the Pro iCAN. Trickle-down from flagship range? A definite “yes!” | |||||||||||||||||
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| Reference class parts quality | |||||||||||||||||
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The iTube2 employs Japan TDK C0G type capacitors. These are complimented by Japan Panasonic ECPU Film Capacitors explicitly designed for audio use with extremely low distortion (<0.00001% @ 1V/10kHz). The iTube 2 also uses ELNA SIlmic capacitors. These and other parts are only found in components with an extra ‘0’ to the price. The proof is in the listening. The best tube buffer/pre-amp out there just pulled even further ahead. |
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| Running silently in the background – iPower 15v | |||||||||||||||||
| Every iTube2 comes with the very-new iPOWER (15v) which is a remarkable-quiet, advanced DC power supply that features: | |||||||||||||||||
| Active Noise Cancellation+® drawn from military radar technology | |||||||||||||||||
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| 12-Element Output Array/6-Element Input Array | |||||||||||||||||
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| Measured on the Audio Precision 2, the iPower has an astonishingly low audio band noise floor of just 1uV while it has the ability to power the iTube2 to put out a maximum 7.75v which is quite remarkable. | |||||||||||||||||