Concert Fidelity CF-080 LX Preamp and ZL-120 Monoblock Amplifier




Good condition. No box.

Product Description

This line stage is a hybrid design. It uses a solid-state analog switch for input switching and an analog solid-state volume control selected for its sonic quality and tracking accuracy. The preamp gain is provided by one 12AU7 tube in cascode mode per channel. The 12AU7 tubes are on the back panel virtually bonded to the output connectors. There are four inputs and one-pair of outputs plus a record output - all single-ended. The input switch, volume control, and gain stages are all assembled onto a circuit board along the back of the preamp resulting in a signal path of only 4-inches from input to output! The volume is controlled by a microprocessor (not on the rear panel) and proprietary software that allows for remote control with digital volume readout on the front panel. The CF-080 made beautiful music. Especially notable are its speed and fast transient response over the whole frequency range, and its transparency. These are essential to making an emotional connection with the music and are no doubt a result of the specific goals of the short signal path philosophy of the designer.

The ZL-120's sonic character perfectly complemented that of the line stage. Speak about clarity and transparency to die for!. Transients were uncoiled with speed and precision. Low-level detail appeared to bubble to the surface of a recording without attendant grain or brightness. Subjective distortion levels remained low even when driven hard, always an issue with solid-state power amplifiers. Tonally, its character hovered around neutrality. This was not a romantic sounding amplifier. If your system is in need of added warmth, you should look elsewhere. If your tastes run towards a soft presentation, then you'll be disappointed. While it's possible for an extended bandwidth design such as the ZL-120 to sound smooth and refined, excessive liquidity.
Unusually for a solid-state amplifier, soundstage spatial impression was nearly 3D while image outlines were nicely fleshed out. Massed voices were readily resolvable. This was no "water color" rendition. Individual voices did not run or blend together into a homogeneous spatial blob and instead were given distinct features. And most important of all, there was plenty of dynamic propulsion. With the right speaker load, all rocket thrusters were engaged. This was no dull, polite, smooth, simply going through the motions performer. It kindled microdynamics with verve. And neither were macrodynamics a problem: it shifted gears from soft to loud with conviction, leaving no doubt about its dynamic reserve.


ZL-120 Power Amplifier
Type: Monoblock power amplifier
Power Output: 120 wpc @ 8 Ohms
Power Bandwidth: 0.5Hz to 100 kHz (-0.8dB)
Frequency Response: 0.5Hz to 30kHz (±0dB), 0.5Hz to 100KHz (-0.8dB)
THD+N: 5W=0.102%
IMD: 0.1% at rated power, SMPTE 4:1 method
Input Sensitivity: 2V for Rated Power
Input Impedance: 20kOhm (Low), 100kOhm (High)
Voltage Gain: 20dB
Dimensions: 450 x 150 x 360 (WxHxD in mm)
Net Weight: 48 lbs

Concert Fidelity CF-080 Line Preamplifier
Type: Stereo vacuum tube preamplifier
Inputs : Four line level
Input Impedance: 100kOhms
Gain: 6dB
Tube Complement: two 12AU7 for gain (tube-swapping possible, NOS tubes preferable); and one 6CA4 for rectification
Dimensions: 450 x 100 x 310 (WxHxD in mm)
Net Weight: 19 lbs.

Return & Refund Policy

• All Pre-Owned items have been tested before listing.
• We encourage buyers to test and verify the equipment condition at our showroom (1 Coleman Street, The Adelphi, Unit 03-35) — pre-owned condition as shown on our listed page.