Hi Guys,
Following amps are up for Sale:
1. JBL GTO 4000- 4 Channel Amplifier.

(not original pic)
? Stereo or Mono operation for flexible system design and subwoofer applications
? Top Led Vu Meter, for indication of the music level independently on left and right channel
? Stability with 2-Ohm speaker loads in order to effortlessly drive multiple speakers from each channel
? Bridging of each stereo channel pair to form a high-power mono channel
? High-Pass, Low-Pass or Bypass 2nd Order Electronic Crossover for precise frequency division
? Continuous variable (30Hz - 320Hz) 12dB/oct. active crossover, for adjusting the amplifier to specific configuration
? Variable input sensitivity (250mV - 4V), for compatibility with all head units
? Effective protection circuitry against short circuit, overheating and over-current
? High-quality power, input and output connectors for clean, tight, long-lasting connections
? BassBoost function, additional bass power for individual preferences
? Unique extruded pure aluminum heat sink, provide a highly efficient heat dissipation
? Trimode operation of each channel pair for use with a mono center channel or subwoofer
Specifications:
(As per my info, back then, JBL used to measure their amps at 12v not 14.4v. = Underrated amp)
Class : AB
Max Power : 600W
RMS Power @ 4Ohms : 4X50W
RMS Power @ 2Ohms : 4X75W
RMS Bridged : 2x150W
Freq. Response : 10Hz - 40kHz
THD : 0.1%
S/N Ratio : >92
Bass Boost : +6dB @ 45Hz
Crossover : Flat/LP/HP
Variable : 30Hz - 320Hz
Slope : 12 dB/oct.
Input sensitivity : 250mV - 4V
Dimensions (WxHxL) : 358 x 55 x 294 mm
Whats included:
Amplifier and Box.
Condition 8.5/10
DEMAND: 11k
2. Rockford Fosgate Punch 601S: (MADE IN USA)
Original pics of the said amp, box and accessories.




Screen shot of the owner's manual. A few noticeable specs:

For full details and Specs:
Rockford Fosgate Punch 601S 150W x 2 Car Amplifier at Crutchfield.com
Details:
- 150 watts RMS x 2 at 4 ohms
- 300 watts RMS x 2 at 2 ohms
- 600 watts RMS x 1 bridged output at 4 ohms
- stereo or bridged mono output
- 4-ohm stable in bridged mode
- Tri-way capable (Tri-Way crossover required)
- 50-250 Hz high-pass/low-pass (12 dB/octave) crossovers
- MOSFET power supply and output devices
- MEHSA mounting technology increases the heat transfer from the MOSFET output devices to the heat sink, for higher power output, lower operating temperatures, and greater reliability
- TOPAZ ? noise-killing differential inputs that eliminate 80% of ground loop noise
- Trans?ana circuitry keeps preamp voltages low and signal paths simple for outstanding audio quality
- NOMAD ? advanced protection circuitry for "intelligent" shutdown protection
- wired remote included for fingertip control of Punch Bass (0-18 dB boost at 45 Hz)
- speaker- and preamp-level inputs
- 17-1/16"W x 2-7/16"H x 9-13/16"D
Whats included:
- 2-channel amplifier with 2 end caps (already attached) and RF illuminated power logo.
- Box
- One 8.5" speaker-level input harness
- 1 In-line 4/8 gauge clear fuse holder
- 50 Amp AGU fuse
- One 3/32" Allen wrench
- One 7/64" Allen wrench
- One 1/8" Allen wrench
- Remote Punch Bass control
- Remote Punch Bass control knob
- 15' RJ-45 Remote Punch Bass cable
- Remote turn-on terminal connector
- "Team RF" sticker .
Condition 8.5/10
DEMAND: 16.5k
Contact and queries through PMs will be appreciated



