The Krell KSA-80
Audiophiles consider this to be one of the finer sounding amps. Although rated at 80wpc, it is very high current and will drive any load. The Krell KSA-80 amplifiers are benchmark products of 1988. Though 80wpc, the KSA-80 is a true pure Class A amplifier, so it runs hot and draws enormous amounts of power. IF you have power-hungry, tough-to-drive speakers, especially, this is the amplifer for you. It is difficult to find fault with this amplifier for it does so many things well. Its coherence is from top to bottom. The soundstage is very deep and seems to extend well beyond the boundaries of the speakers. Vocalists and instruments have a nice 3D quality. The bass of course is phenomenal with great pitch and control. Its low frequency presentation is very deep and powerful. The bass slam, in particular, is amazing. The mid and high range are very uncoloured, detailed and fast. In the system, there no grain or glare that can plague some solid state designs. When playing both Vinyl and Cd and there is no listener fatigue. The build is second to none. It is definitely built for many, many years of enjoyment.
This KSA-80 is in excellent condition.

Rated Power: 200 watts/channel @8 ohms, all channels driven, 400 watts/channel @4 ohms, all channels driven.

FR: 5 Hz - 20 kHz (Flat)

THD: < 0.05%

Size: 8"H x 19"W x 15 1/2"D

Weight: 68 Pounds

Yamaha Patented PlayXchange
Disc (Intro) Scan
Peak Search
3-Mode CD Text Display
10-Key Direct Track Access
Intelligent Digital Servo System
Optical Digital Out

5-DISC CD CHANGER WITH PLAYXCHANGE
Flagship carousel-type changer with 5-disc capacity. Features Yamaha's patented PlayXchange which permits four discs to be replaced while the fifth is playing.
DIGITAL VOLUME CONTROL OPERABLE BY REMOTE*
The noiseless digital volume control can be easily adjusted via the remote control keypad.
10-KEY DIRECT ACCESS*
Allows you to access each track at the touch of a button on the front panel or the remote keypad.
MULTIPLE OUPUTS*
The variable analog output is augmented by an optical digital output for the most accurate signal delivery possible.
CD TEXT COMPATIBLE*
Can display text, such as lyrics and other information, embedded in some CDs.
TAPE EDIT CAPABILITY*
Tell the CD changer the length of the tape you're using and the changer will automatically arrange the selections to best fit the recording time.
PEAK SEARCH*
Finds the peak output levels on the disc selections and allows you to set the proper recording level for the best possible dub.
YAMAHA S-BIT DAC
Two pairs of Yamaha's high precision single-bit digital-to-analog converters provide accurate conversion from the digital domain to analog to assure a natural sound quality.
INTELLIGENT DIGITAL SERVO SYSTEM
Automatically adjusts tracking, focus, and motor speed to compensate for disc defects, warpage, and dust, or the remote keypad.
V-PROFILE FRONT PANEL
Style has not been left out. The CDC-675 features Yamaha's new V-profile front panel.
REMOTE CONTROL CONVENIENCE
An infrared remote control keypad gives complete operating control at the touch of a button.
SYNCHRO START CAPABILITY
Allows one-touch recording from the remote control. Synchro Start automatically puts a Yamaha cassette deck in the record mode before it begins to play the CD selections.

DIRECT PLL TUNING
Direct PLL -- Phase Locked Loop -- tuning LSI circuitry combined with a microprocessor controlled IF count synthesizer tuning system precisely locks onto the broadcast frequency for super-accurate tuning.
ALPHA CIRCUITRY
This Absolute Linear Phase IF Amplifier is a Yamaha-developed circuit that provides excellent selectivity, interference rejection, phase linearity, and improved channel separation, while maintaining extremely low harmonic distortion. By using ALPHA circuitry, the TX-492 provides better selectivity than other models in this price range.
AUTO STATION MEMORY
The tuner will automatically store in memory presets the 40 radio stations with strongest frequencies.
40-STATION RANDOM ACCESS MEMORY PRESET TUNING
Preset Editing allows you to change the presets as you wish an organize them in five groups of eight stations. These groupings make it easy for family members to easily access their favorite stations or to have musical genres, such as all the jazz stations, grouped together.
3-WAY MULTI-STATUS MEMORY
The tuner automatically "memorizes" your settings for AM or FM band, stereo or mono mode, as well as the station's frequency.
12-SEGMENT SIGNAL QUALITY METER
Yamaha's unique signal quality meter provides visual indication of multipath as well as signal strength.
2-WAY MODE SELECTOR
Permits automatic reception of all stereo signals, or, if the signal is too weak, manual selection of mono for better signal quality.
EXTRA-LARGE ANTI-VIBRATION FEET
Reduce resonance and vibration effects.
HIGH GAIN AM LOOP ANTENNA
Allows for maximum reception of AM stations.

The Faroudja VP400A Video Processor is a precision video instrument used to convert NTSC Composite, Y/C, or 525 line RGB or Component interlaced signals into 1050 line progressive outputs.
Using the VP400A Video Processor will produce
pictures with more details, remove unwanted picture
artifacts and, when used with projection systems,
produce pictures of exceptional quality, giving a
“cinema-like” feeling.
Front panel features include Power, Input Select
(Video, Y/C, RGB and Component), Brightness,
Contrast, Color, Auto-Tint, Noise Reduction, Detail,
Digital Filter and Freeze. Input switch settings are
memorized when the power is removed from the
unit. This allows the VP400A to be interfaced into a
system without the need to select the input when
the system is powered up. The remaining controls
may be left in factory preset or manually set by
pulling out and rotating the control until the desired
level is established.
Inputs to the VP400A include: Composite Video,
Y/C (S-VHS), RGB and Component (Y,R-Y,B-Y). The
Video input may be connected by either a BNC connection
or a video RCA type connection. These
inputs are looped internally so that the signal may
be used by other devices. A selectable 75 Ohm terminator
switch is provided and should be in the ON
position if the input loop is not used. The Y/C input
uses a standard 4 pin S-VHS connector. This input
is not available for a looped operation and is terminated
internally. The RGB and Component inputs
use BNC connectors. As with the video input, these
inputs are loopable to other devices. Selectable 75
Ohm terminations are provided. If the looped inputs
are used, these cables should be kept short, (under
6' in length) or a video distribution amplifier should
be used. This allows the VP400A to keep the highest
signal bandwidth possible without having the
high frequency being attenuated in a long cable.
Output from the VP400A is provided on six BNC
connectors as well as one 15 pin ‘D’ connector. The
BNC outputs provided are Red, Green, Blue,
Horizontal Sync, Vertical Sync and Composite Sync.
Interface to monitors/projectors can be of a 4 or 5
wire connection. Note: 4 wire, meaning Red, Green,
Blue and Composite Sync or 5 wire, meaning Red,
Green, Blue, Horizontal Sync and Vertical Sync.
There is no sync present on the Green output. The
VP400A is capable of driving a monitor/projector
using the BNC outputs as well as a 15 pin ‘D’ connector,
at the same time. The monitor and projector
have to scan at 62.94KHz Horizontal scan rate.
The VP400A features a RS-232 remote control
interface that will allow control of all line quadrupler
functions. The remote control uses a 25 pin female
‘D’ connector located on the rear panel.