The Herron Audio HL-1 solid state preamplifier is designed to take the listener as close as possible to the original live musical performance. State-of-the-art components and design are combined using a purist approach that provides utmost clarity and reproduces the emotion, dynamics, and passion of the musical performance without adding or subtracting any colorations or distortions of its own. The clarity of its performance is true to the source.
The HL-1 employs a volume control system very similar to the highly-rated Herron Audio VTSP-1A/166 with the addition of a remote control and level display. The HL-1 volume control provides 100 steps of discrete and precise channel-to-channel matched level control. The electronic stepped attenuators provide distortionless volume control that will not degrade with time or use.
The front-panel displays on the HL-1 are powered from individual latches and are not sequentially flashed (multiplexed) as in most display designs. This more-expensive approach means that each relevant display element is continuously illuminated, and no audio signal path interference is generated from the display.
The HL-1 front-panel input controls (and remote control) operate individual sealed gold-contact relays located at the input connectors to insure pure connections, short signal paths, and long life.
Herron HL-1 Features
Multifunction remote control
Volume level display (0-100)
Switchable absolute polarity
Full-range balance control
Unity gain pass-through function
Display brightness control
Low noise design
Two main outputs
One tape output
Tape out/in loop
Super low noise
Six inputs including tape
100K input impedance
High input-signal capacity without overload
Automatic muting at startup and shutdown
Gold plated, Teflon-insulated RCA connectors
Hand-picked components for accurate response
Reversing power line (AC) polarity switch
Each unit hand crafted, burned-in, and given rigorous bench and listening tests
Available in black or silver with optional MM/MC switchable phono section
Herron HL-1 Specifications
Frequency response: 1Hz to beyond 100kHz, 20Hz to 20kHz ±0.1 dB
Output impedance: 250ohms nominal at 1kHz
Input impedance: 100,000ohms
Volume control: 100-position electronic stepped attenuator, maximum differential 0.1dB channel to channel
Distortion: <0.01% THD+ noise @ 1V RMS output
Absolute polarity: switchable
Warranty: 3 years, parts and labor
Hi-Fi Review of Herron HL-1
The HL1 majors on getting stuff in the right place at the right time . . . The HL1 represents that rarest of beasts, a full-facilities preamplifier that manages to sound excellent without costing a fortune.