Block AudioLine & Power Block SEusedBlock Audio Line & Power Block SEBLOCK AUDIO - Line and Power Black SE Dual Mono balanced preamplifier and headphone amplifier. One of the finest preamps in the world, this is a RARE opportunity to enjoy an exquisite preamp for ...22345.00

Block Audio Line & Power Block SE [Expired]

no longer for sale

BLOCK AUDIO - Line and Power Black SE

Dual Mono balanced preamplifier and headphone amplifier.

One of the finest preamps in the world, this is a RARE opportunity to enjoy an exquisite preamp for a fraction of the original price.

This is a one owner unit, traded in on a CH Precision L10 preamp.  Unless you are going to go with CH Precision this is as good as it gets sonically.

Comes in the original flight case, comes with factory supplied apple remote 

The unit is perfect EXCEPT for two scratches on the battery power supply which were cause during removal from the rack.  They are visible in the pictures.

Unit would be available for demonstration by appointment in the Liquid HiFi showroom.

Potential in home demonstration available assuming client is willing to cover associated costs.


  • Battery powered, Dual-Chassis & Dual-Mono configuration
  • Both channels, supply units and non-audio circuits are physically separated, shielded and electrically isolated
  • Battery supply for audio circuits – each channel is powered by its own battery bank
  • At least 15 hours battery operation and a smart automatic function will activate charging mode when the battery becomes empty, or preamp is switched off
  • Short audio signals paths without any internal wiring
  • An overall symmetrical design
  • Separate grounds for left and right channel
  • Class-A operation, all discrete audio circuitry
  • DC signal coupling with Servo-Control
  • Symmetrical relay volume attenuator
  • 2 × 120 000 µF of power supply-filter capacitance
  • Adjustable input sensitivity and channel balance
  • Full HT bypass function for all inputs
  • The output phase invert function
  • Two custom made low-noise and low-radiation toroidal transformers in decoupled and suspended mount cases
  • Own physically separated and electrically isolated power supply for non-audio circuits
  • Adjustable feet with integrated spikes
  • User-selectable Battery or AC Mains operation mode
  • Built-in Class-A headphone amplifier
  • User-selectable Auto Power Off mode
  • Auto brightness controlled graphical display and status LED
  • Infrared remote control
  • Built-in MC/MM Phono stage with remotely controlled settings
  • System rem. control for power amplifier*


Distortion: THD+N <0.0005 %, IMD <0.0007 % (at 6 Vrms out)
Frequency Response: DC – 300 kHz -0.5 dB, DC – 20 kHz -0.01 dB
Signal/Noise Ratio: >130 dB A weighted, >128 dB unweighted (related to full output)
Channel Separation: Infinite (>130 dB)
Max. Voltage Gain: +12 dB balanced, +18 dB unbalanced
Input Impedance: 40 kΩ balanced, 20 kΩ unbalanced
Output Impedance: 50 Ω balanced, 25 Ω unbalanced
Maximum Output Voltage: 20 Vrms balanced, 10 Vrms unbalanced
Inputs: 4 balanced (XLR) pairs, 5 unbalanced (RCA) pairs
Phono Input: 1 unbalanced (RCA) pair
Outputs: 2 balanced (XLR) pairs, 2 unbalanced (RCA) pairs
Phones Output: 3 pole XLR receptacle and 6.35 mm / 1⁄4″ stereo jack
Battery Operation Time: >15 hours
System Remote Control: Yes*, Neutrik RJ45
Power Consumption: 150 W max. at charging, 50 W at idle, <0.5 W in Standby
Mains Voltage: 230 / 115 V AC ±10 %, 50 / 60 Hz (factory pre-configured)
Dimensions – Line: 460/18.1(w) × 105/4.1(h) × 360/14.2(d) mm/inch
Dimensions – Power: 460/18.1(w) × 105/4.1(h) × 360/14.2(d) mm/inch
Weight in total: 28 kg / 62 lbs., ~40 kg / 88 lbs. shipping

Link to owners manual:

We will ship this unit worldwide at buyer's expense.

Payment needs to be wire transfer or certified check/money order

thank you
Ronald K. Buffington  Liquid HiFi 704-953-6034
Authorized dealer for Audioquest, Aurender, Bluesound, Boulder, Computer Audio Design, Cardas, CH Precision, Dynaudio, Esoteric, Focal, Furutech, Harmonic Resolution Systems, Hegel, IsoAcoustics, KEF loudspeakers, Kuzma, Lyra analog, Jeff Rowland design,  Marten design, NAD, Nordost, Parasound Halo, QRT, Questyle, Reference Recordings, Rega, RevOPods, Rogue Audio, Rotel, Simaudio MOON, Sonus Faber, Stenheim, Stillpoints,  Vienna Acoustics, Vicoustic, WADAX digital, YG Acoustics & many other fine audio products.



member since September 2001

Liquid HiFi  Verified Dealer

Last 12 months
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