PUNCH-10
Bass Enhancement System
FEATURES:
Creates bass content one octave below the existing fundamental
Subharmonic Process control with activity indicator LED
Subwoofer/Subharmonic Master Level control
Hard limiter with adjustable threshold and Limiter Active LED
High pass filter on main speakers
Bypass button with LED
Low Frequency Assign button routes synthesized bass to main speakers or subwoofer
Main inputs and outputs are stereo; subwoofer output is mono
Ground Lift and on/off switches on rear panel

SPECIFICATIONS:
INPUTS:
Stereo
Input Impedance: 10K ohms
Maximum input level: +15 dBu
Gain: Depends on Subharmonic setting; unity when Subharmonic is set to 0
Connectors: 1/4" phone
OUTPUTS:
Stereo main and mono subwoofer: Output Impedance: 100 ohms.
Maximum output level: +21 dBu
Recommended minimum terminating load: 2.5K ohms
Connectors: 1/4" phone.
GENERAL:
Frequency Response: -0.5, +1.0 dB from 20 Hz to 20 KHz
Output Noise: -94 dBu with Subharmonic control at minimum, -84 dBu with Subharmonic control at maximum, from 20 Hz to 20 KHz, with input shorted
Limiter: Attack: 8 ms; Release: 1 sec.; Threshold: -20 dBu to +20 dBu, adjustable.
Main Speakers High Pass: 15 Hz to 135 Hz, adjustable; rolls off at 12 dB/octave.
Mechanical:
Dimensions: 1.75" H x 19" W x 8" D
Weight: 6 lbs (2.7 kg)
Construction: Steel chassis, zinc chromate plating; 1/8" thick brushed and black anodized aluminum front panel; FR4 glass epoxy printed circuit boards; all IC's in sockets.
Power Requirement: 5 Watts; 120 VAC 60 Hz, or 230 VAC 50/60 Hz versions available.
Safety Agency Approvals: UL, C-UL, CE listed.
NOTES:
0 dBu equals .775 Vrms.
Outputs can be connected to less than the indicated minimum load without damage or excessive distortion, but maximum output levels will be reduced.

PUNCH-10

PUNCH-10B
Bass Enhancement System • Balanced
FEATURES:
Creates bass content one octave below the existing fundamental
Subharmonic Process control with activity indicator LED
Subwoofer/Subharmonic Master Level control
Hard limiter with adjustable threshold and Limiter Active LED
High pass filter on main speakers
Bypass button with LED
Low Frequency Assign button routes synthesized bass to main speakers or subwoofer
Main inputs and outputs are stereo; subwoofer output is mono
Ground Lift and on/off switches on rear panel

SPECIFICATIONS:
INPUTS:
Balanced Stereo
Differential Input Impedance: 20K ohms
Maximum input level: +15 dBu
Gain: Depends on Subharmonic setting; unity when Subharmonic is set to 0
Connectors: Both 1/4" phone and XLR.
OUTPUTS:
Stereo main and mono subwoofer: Differential Output Impedance: 200 ohms.
Maximum output level: +27 dBu
Recommended minimum terminating load: 5K ohms
Connectors: Both 1/4" phone and XLR.
GENERAL:
Frequency Response: -0.5, +1.0 dB from 20 Hz to 20 KHz
Output Noise: -94 dBu with Subharmonic control at minimum, -84 dBu with Subharmonic control at maximum, from 20 Hz to 20 KHz, with input shorted
Limiter: Attack: 8 ms; Release: 1 sec.; Threshold: -20 dBu to +20 dBu, adjustable.
Main Speakers High Pass: 15 Hz to 135 Hz, adjustable; rolls off at 12 dB/octave.
Mechanical:
Dimensions: 1.75" H x 19" W x 8" D
Weight: 6 lbs (2.7 kg)
Construction: Steel chassis, zinc chromate plating; 1/8" thick brushed and black anodized aluminum front panel; FR4 glass epoxy printed circuit boards; all IC's in sockets.
Power Requirement: 5 Watts; 120 VAC 60 Hz, or 230 VAC 50/60 Hz versions available.
Safety Agency Approvals: UL, C-UL, CE listed.
NOTES:
0 dBu equals .775 Vrms.
Outputs can be connected to less than the indicated minimum load without damage or excessive distortion, but maximum output levels will be reduced.

PUNCH-10B