Peavey 6505 1992 Original Guitar Amplifier Head User Guide
- June 10, 2024
- Peavey
Table of Contents
Peavey 6505 1992 Original Guitar Amplifier Head
Product Information
- The Peavey 6505 1992 Original is a powerful guitar amplifier that delivers 120W RMS power into 16, 8, or 4 ohms.
- It has active presence and active resonance EQ controls that give you +10 dB boosts at 2kHz and the cabinet resonant frequency respectively.
- The amplifier has a frequency response range of +0, -3 dB from 50 Hz to 20 kHz at 100 W RMS into 8 ohms.
- The speaker connection requires setting the impedance selector switch on the rear of the unit to match the impedance of your speaker enclosure. The amp is designed to operate into a minimum of 4 ohms.
- You can use the effects loop to patch external non-gain producing effects devices like digital delay, reverb, chorus, etc. The effects can be selected using the remote footswitch jack.
Product Usage
- Before using the amp, read the operating guide to familiarize yourself with its controls and functions.
- When connecting the amplifier to a speaker enclosure, ensure that the impedance selector switch on the rear of the unit is set to match the impedance of your enclosure. If you are using two enclosures of equal impedance, set the switch to one half the impedance of one enclosure (e.g. two 16 ohm enclosures: set switch to 8 ohms; two 8 ohm enclosures: set switch to 4 ohms).
- Use the active presence and active resonance EQ controls to adjust your sound appropriately.
- If you are using external non-gain producing effects devices, use the effects loop to patch them. Connect the send output to the input of your effects unit and return output to the effects return input of the amplifier.
- You can use the remote footswitch jack to select your desired effects. Refer to the operating guide for more information.
- To ensure optimal performance, reorient or relocate the receiving antenna, increase the separation between the equipment and receiver, connect the equipment into an outlet on a circuit different from that to which the receiver is connected, or consult a dealer or an experienced radio/TV technician for help.
Congratulations! You have purchased a rock & roll monster. The Peavey 6505® 1992 Original is the result of an extensive research and development to produce the ultimate rock & roll guitar amp. You’re ready to experience super rock crunch, harmonic-rich sustain, and screaming metal drive like you’ve never heard from another amp. Before you begin, please take the time to read this operating guide, familiarizing yourself with the 6505 1992 Original’s controls and functions.
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INPUTS
The 6505 1992 Original’s input block features HIGH [1] and -
NORMAL [2] gain inputs. The HIGH gain input has twice the gain of the NORMAL gain input and should be used when maximum overdrive is desired. When both inputs are used simultaneously, the 6505 1992 Original automatically switches to the normal gain mode (6 dB pad). Situations where both inputs are used at once (alternating between two guitars on stage using both inputs, etc.) should be avoided if peak overdrive is expected from the amp. Experimentation with your particular guitar/pickup into each input will determine which input is best for your sound.
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CHANNEL SELECT SWITCH
Allows selection of the RHYTHM or LEAD channel. Depressing the switch to the “in” position activates the LEAD channel. The red LED light will illuminate to indicate that the LEAD channel is active. In the “out” position the RHYTHM channel is activated and the green LED illuminates. Channels may be remotely selected using the 6505 1992 Original’s footswitch. If remote selection is desired the channel select switch must be set to the “in” position (LEAD channel). -
LEAD PRE & POST GAIN
The LEAD CHANNEL PRE GAIN [8] controls the input level and works with the LEAD CHANNEL POST GAIN [13] to determine the overall volume/overdrive of the LEAD channel. -
Lower settings of the PRE GAIN control produce a relatively clean, undistorted sound while the middle to high settings produce harmonically rich distortion and screaming overdrive/sustain. Since both PRE and POST GAIN controls work in “combo/’ a basic rule-of-thumb set-up procedure is to begin with both controls in the lower settings (0 – 2). Using the PRE GAIN control, dial in the amount of overdrive/sustain you want for the LEAD channel. Then, with the POST GAIN control adjust for overall volume.
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RHYTHM PRE & POST GAIN
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The RHYTHM channel PRE [4] and POST GAIN [12] operate in the same manner as the LEAD channel gain controls. For most applications, the RHYTHM channel should be set up with the PRE GAIN at the lower,
“cleaner” settings (0 – 4) and the POST GAIN set for overall volume. The RHYTHM channel can be converted to a second
“lead” channel by activating the CRUNCH SWITCH [6]. -
BRIGHT SWITCH
Activates a preset boost in the treble frequencies (6 dB at 2 kHz) and affects only the rhythm channel. -
CRUNCH SELECT SWITCH
Boosts the gain of the rhythm channel to create a second “lead” channel. Depress to the “in” position to activate. -
EQUALIZATION
The 6505 1992 Original’s equalization block features passive LOW, MID, and HIGH EQ. -
RESONANCE I PRESENCE
Unique to the 6505 1992 Original, the RESONANCE [14] control can be set to boost the gain of the power amp in the low frequencies at the resonance/attenuation point of the speaker cabinet. In simple terms, the RESONANCE control works like a low EQ to offset low-end frequency drop-out. -
The PRESENCE [15] control works in the same manner, boosting the high frequencies. Experimentation using your particular speaker cabinet along with personal taste will determine your setting for these important controls.
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STANDBY SWITCH
Allows the 6505 to be placed
in a non-operational standby mode. When the standby switch is activated, the tubes remain hot and ready for instantaneous operation, eliminating warm-up time. The STANDBY LED indicator light [16] will illuminate when the amp is in the operational mode. -
POWER SWITCH
Supplies power to the unit. Depressed to the “ON” position, the POWER LED indicator light [17] will illuminate indicating power is being supplied to the unit. -
FUSE
A 5 amp fuse is located within the cap of the fuse holder. It must be replaced with the same type and value in order to avoid damage to the equipment and to prevent voiding the warranty. If the amp repeatedly blows fuses, it should be taken to a qualified service center for repair.
WARNING: The fuse should only be replaced when the power cord has been disconnected from its power source. -
LINE CORD (120 V units only)
For your safety, we have incorporated a 3-wire line (mains) cable with proper grounding facilities. It is not advisable to remove the ground pin under any circumstances. If it is necessary to use the 6505 1992 Original without proper grounding facilities, suitable grounding adaptors should be used. Greatly reduced shock hazard exists when the unit is operated with the proper grounded receptacles. -
GROUND SWITCH
Three position, rocker-type switch which, for most applications, should be operated in the center (zero) position. If hum or noise is noticed coming from the speaker enclosure(s) with the ground switch in the center position, place the ground switch to positive or negative (+or – ) to minimize hum. Should a hum/noise problem continue, consult your authorized Peavey Dealer, the Peavey factory, or a qualified service technician. NOTE: The ground switch is not functional on 220/240 volt models. -
EFFECTS SEND I EFFECTS RETURN
Signals are supplied to outboard effects or signal processing units by patching from the EFFECTS SEND [23] output into the outboard unit(s) and back into the EFFECTS RETURN [24] input using shielded cable with ¼” phono jacks. Only non gain effects devices (chorus, reverb, delay, etc.) should be used in the effects loop. Remote (on/off) selection of outboard effects devices can be achieved using the 6505 1992 Original’s footswitch. -
PREAMP OUT
This output can be used to send a preamped signal from the 6505 1992 Original to a mixing console, tape recorder, etc., using shielded cable. Patching from the PREAMP OUT does not affect the normal operation of the amplifier. -
REMOTE FOOTSWITCH JACK
Provided for the connection of the supplied remote footswitch. When the footswitch is plugged into the remote footswitch jack, the channel select switch [3] must be pressed to the “in” position for remote selection to operate. Remote selection of the LEAD or RHYTHM channel (left footswitch button) or outboard devices in the effects loop (right footswitch button) is possible with the remote footswitch. -
SPEAKER OUTPUTS
Paralleled ¼’’ OUTPUTS output jacks for connecting speaker enclosure(s) to the amplifier
(minimum: 4 ohms). When using more than one enclosure, be sure to calculate the total impedance and set the impedance switch [28] accordingly. (See section on IMPEDANCE SWITCH.) Important: Use only high quality, Unshielded cable for speaker connections. -
IMPEDANCE SELECTOR SWITCH
Use to select the appropriate impedance of the speaker enclosure(s). If two enclosures of equal impedance are used, the switch should be set at one half of that value (e.g.,two 16 ohm enclosures: set switch to 8 ohms; two 8 ohm enclosures: set switch to 4 ohms).
SPECIFICATIONS
POWER AMPLIFIER SECTION
- Rated Power & Load: 120 W RMS into 16, 8, or 4 ohms
- Power @ Clipping: (Typically @ 5% THD, 1 kHz, 120 V AC line) 130 W RMS into 16, 8, or 4 ohms (Bias must be reduced to measure)
- Frequency Response: +0, -3 dB, 50 Hz to 20 kHz, @ 100 W RMS into 8 ohms
- Hum & Noise: Greater than 75 dB below rated power
- Power Amp EQ:
- Active Presence: +10 dB 2 kHz
- Active Resonance: +10 dB @ cabinet resonant frequency
- Power Consumption: (Domestic) 400 watts 50/60 Hz, 120 V AC
PREAMP SECTION
The following specs are measured @ 1 kHz with the controls preset as
follows:
- Low & High EQ @ 0
- Bright out
- Lead & Rhythm Post @ 10
- Presence & Resonance @ 0 dB
- Nominal levels with Pre Gains @ 5
- Minimum levels with Pre Gains @ 10
- Preamp High Gain Input:
- Impedance: Very high Z, 470K ohms
- LEAD CHANNEL (with channel select in) Nominal Input Level: -80 dBV, -1 mV RMS Minimum Input Level: 92 dBV. /025 mV RMS
- CLEAN CHANNEL: (with channel select out) Nominal Input Level: +34 dBV, 20 mV RMS Minimum Input Level: -50 dBV, 3 mV RMS Maximum Input
- Level: 0 dBV, 1.0 V RMS (Subtract 16 dB with Crunch switch in)
- Preamp Low Gain Input: (-6 dB pad) Impedance: High Z 44K ohms
- All levels are increased by +6 dB
Effects Send:
- Load Impedance: 47K ohms or grater
- Nominal Output: -10 dBV, 300 mV RMS
Effects Return:
- Impedance: Very high Z, 470K ohms
- Designed Level: -10 dBV, 300 mV RMS
Preamp Output:
- Load Impedance: 47K ohms or grater
- Nominal Output: +10 dBV, 3 V RMS
Remote Footswitch:
- Special 2 button unit with LED indicators (supplied) Channel select & Effects loop bypass
- System Hum & Noise @ Nominal Level: (Clean channel) 120 Hz to 20 kHz unweighted) Greater than 74 dB below rated power
Equalization:
- Custom Low, Mid & High passive type EQ Push Bright, (Rhythm channel only) +6 dB @ 2 kHz
- Push Crunch (Rhythm channel only) Increases gain
SPEAKER CONNECTION
When connecting the amplifier to the speaker enclosure, make. sure to set the
impedance selector switch on the rear of the unit to the impedance that
matches your enclosure. When two enclosures of equal impedance are used, set
the switch to one half the impedance of one enclosure (e.g. two 16 ohm
enclosures: set switch to 8 ohms; two 8 ohm enclosures: set switch to 4 ohms).
The 6505 1992 Original is designed to operate into a minimum of 4 ohms.
RACK MOUNT EFFECTS UNIT
EFFECTS PATCHING
USING THE EFFECTS LOOP TO PATCH EXTERNAL,NON GAIN PRODUCING EFFECTS DEVICES
(DIGITAL DELAY, REVERS, CHORUS, ETC.)
FCC/ICES Compliancy Statement
This device complies with Part 15 of the FCC rules and Industry Canada license-exempt RSS Standard(s). Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, that may cause undesired operation.
Warning: Changes or modifications to the equipment not approved by Peavey Electronics Corp. can void the user’s authority to use the equipment.
Note – This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures.
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Caution
The equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment.
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