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The new Zvex iMP Amp (now with gleaming nickel-plated transformers!)
is the world's smallest vacuum tube hi-fi stereo amplifier. The iMP
Amp is a remarkable product that fuses 50's technology with modern electronics.
Now you can put a 50's-style hi-fi right on your desktop, no matter
how little room you have available.
We have an iMP Amp in our office. It is connected to a pair of Yamaha
NS-500M speakers. These speakers are medium efficiency (91dB @ 1 watt
/ 1 meter) and are driven to a very respectable, room-filling volume
using the iMP Amp.
We were listening to an Annie Lennox song with some deep bass notes.
We stepped outside to talk and broke out laughing when we noticed that
the walls were shaking and the windows were rattling outside! This mighty
little gem really has become our favorite hi-fi amp. It is stunningly
beautiful and sounds as great as it looks!
The frequency response is 15Hz to 20kHz +/- 1.25db. This is excellent
for any tube amp, let alone one that fits into the palm of your hand!
Features
Frequency response: 15Hz to 20kHz +0.5/-2.0 dB at 8 ohms, measured
at 70 mW.
DC-coupled (no capacitors!) for amazing low frequency response!
-3dB points: -3dB@10Hz. -3dB@22kHz
Output Power: 1 watt/channel at 12 ohms / .75 watts/channel at 8 ohms
About 80mW at 5V rms driving 300 ohm headphones (such as the famous
Sennheiser MD600.)
Input: -20dB consumer to +4dB pro level via adjustable trimmers on bottom.
Use +4dB (trimmers set counter-clockwise) for lower-impedance headphones
for best noise specs.
Noise: Better than 80 dB S/N at 1kHz.
Residual Hum: Less than 0.2mVAC at 60Hz plus harmonics.
Power Supply: UL-listed 12VAC at 1A (1000mA)
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