™
D e l ta B a s s
Pro fe s s i o n a l B a s s A m p l i f i e r
O p e ra ti n g G u i d e
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ENGLISH
DeltaBass™
Professional Bass Amplifier
Congratulations on your purchase of the Peavey DeltaBass™. The DeltaBass was designed keeping
in mind the value of a lightweight, powerful bass amp. This amp has that and more.
Because the DeltaBass is a lightweight amp, it’s portable enough for any gig or practice. The easy-
to-use three-band EQ is so versatile you should have no problem quickly dialing up your sound.
Professional features like a Tuner Send, Post-EQ Effects Loop, and a transformer balanced XLR
jack with Pre/Post EQ switch will make your next gig a breeze. Notice that we tapped the signal for
the XLR before the Volume control (even for the Post EQ Send) so you can adjust your stage
volume without tampering with the sound in the mains. This will certainly score some valuable points
with your soundman.
To get the most out of your new DeltaBass, we suggest that you read this entire manual. Pay
special attention to any warnings/cautions to ensure your safety and the safety of your product.
Thank you for buying Peavey!
FEATURES:
• Buffered tuner send jack
• Post EQ effects loop
• Transformer-balanced XLR jack
• Pre/Post EQ send switch for XLR jack
• Ground lift switch for XLR jack
• Patented DDT™ power amp compression with defeat switch and LED indicator
• 160 Watts (4 ohm) power amp
REAR PANEL:
2
4
1
3
REAR PANEL FEATURES
(1)
REMOVABLE AC POWER CORD
This receptacle is for the IEC line cord (included), which provides AC power to the unit.
Connect the line cord to this connector and to a properly grounded AC supply. Damage to the
equipment may occur if an improper line voltage is used. (See voltage marking on unit.)
Never remove or cut the ground pin of the line cord plug. This unit is supplied with a properly
rated line cord. When lost or damaged, replace this cord with one of the proper ratings.
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NOTE: FOR UK ONLY
As the colors of the wires in the mains lead of this apparatus may not correspond with the
colored markings identifying the terminals in your plug, proceed as follows: (1) The wire which
is colored green and yellow must be connected to the terminal which is marked by the letter E, or by
the earth symbol, or colored green or green and yellow. (2) The wire which is colored blue must be
connected to the terminal which is marked with the letter N, or the color black. (3) The wire which is
colored brown must be connected to the terminal which is marked with the letter L or the color red.
(2)
POWER SWITCH
Used to turn AC mains power on or off. Place the switch in the (I) position to turn the unit on.
Return it to the (O) position to turn the unit off. The Status/Power LED (22 ) on the front of the
unit will illuminate to indicate the unit is on.
(3)
FUSE
The fuse is located within the cap of the fuseholder. If the fuse should fail, 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 unit 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.
CAUTION: USING A FUSE LARGER THAN THE RECOMMENDED SIZE COULD RESULT
IN PERMANENT DAMAGE TO THE AMPLIFIER.
(4)
SPEAKER JACKS
Two paralleled 1/4" speaker jacks are provided for connection to speaker enclosures. The
minimum speaker load impedance is 4 ohms.
FRONT PANEL:
6
9
10
11
12
13
14
15
5
8
7
16 17 18
19
20
21 22
FRONT PANEL FEATURES
(5)
INPUT JACK
This mono 1/4" input will accept signals from all types of bass pickups.
(6)
INPUT PAD SWITCH
This switch is provided for instruments that have an extremely high output, which can result in
overdriving (distorting) the input stage. Depressing the switch to its “in” position reduces the
level of the input signal by 10 dB.
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(7)
(8)
(9)
TUNER SEND JACK
This 1/4" jack is provided for connecting an instrument tuner to your amp. Its signal is
buffered off the input jack so it is just like plugging directly into the tuner.
BRIGHT SWITCH
This switch provides a preset boost to treble frequencies. To activate, depress the switch to
its “in” position.
PRE GAIN CONTROL
This knob controls the input gain of the preamplifier. The input gain is at its maximum when
this control is turned fully clockwise. Adjusting this control will adjust the sensitivity of your
amp to your playing style.
(10) CONTOUR CONTROL
This knob provides a specially voiced EQ as the knob is rotated clockwise. When the knob is
fully counterclockwise (set to 0) there is no voicing added.
(11) LOW CONTROL (11)
This active tone control (shelving type, +/-15 dB) varies the low frequency boost or cut.
(12) MID CONTROL
This active tone control (peak/notch, +/-15 dB) adjusts the mid frequency range.
(13) MID SHIFT CONTROL
Use this knob to select the frequency band that the mid control cuts or boosts.
(14) HIGH CONTROL
This active tone control (shelving type, +/-15 dB) varies the high frequency boost or cut.
(15) VOLUME CONTROL
This control determines the overall volume level of the amplifier. The final level adjustment
should be made after the desired sound has been achieved. Adjusting this control clockwise
will increase the overall volume level.
(16) LINE OUT—XLR JACK
This male XLR provides a 600 ohm, transformer balanced signal for patching into a sound
reinforcement or recording console.
(17) PRE/POST EQ SELECT SWITCH
Use this switch to select between a Pre EQ (switch set to the “out” position) or a Post EQ
(switch set to the “in” position) send to the XLR line out jack.
(18) GROUND LIFT SWITCH
This switch is provided to lift the ground on the XLR jack when ground loops are
encountered.
(19) EFFECTS SEND JACK
Use this mono 1/4" output for supplying signals to external low-level effects or signal
processing equipment.
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(20) EFFECTS RETURN JACK
Use this mono 1/4" input for returning signals from external low-level effects or signal
processing equipment.
(21) DDT™ COMPRESSION DEFEAT SWITCH
DDT™ compression is defeated when the button is in the “in” position. DDT should be enabled
at all times to protect the speakers.
(22) STATUS/POWER LED
This LED serves two functions on the DeltaBass amp. The LED is green when the power
switch is in the “on” position and power has been supplied to the DeltaBass. During normal
operation, the LED also acts as a DDT indicator. The LED illuminates red when DDT power
amp compression is taking place. When DDT™ is defeated, the LED will illuminate red when
clipping occurs.
6
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™
DeltaBass
Specifications
NOTE: All specifications measure with mains voltage maintained
at nominal level.
PREAMPLIFIER SECTION:
SETTINGS FOR FOLLOWING MEASUREMENTS
UNLESS OTHERWISE NOTED:
Pre-Gain = 5 (12 o’clock)
Contour = 0 (fully CCW)
Bass = 0 (12 o’clock)
Mains Voltage = 120 VAC 60 Hz (Fuse: 5 amps)
230 VAC 50/60 Hz (Fuse: 3.5 amps)
100 VAC 50/60 Hz (Fuse: 6 amps)
Power Consumption = 200 watts
Mid = 0 (12 o’clock)
Mid Shift = 12 o’clock
High = 0 (12 o’clock)
SYSTEM NOISE:
Typically greater than -85 dB
Master Volume = 5 (12 o’clock)
High Boost = out
POWER AMPLIFIER SECTION:
Pad = out
DDT™ = Active
Protection:
Current limit protection circuit.
Thermal protection circuit.
INPUT SENSITIVITY (Level to achieve full power):
With Pad Out...
DDT™ speaker protection circuit with defeat switch.
Nominal input: 65 mv
GENERAL INFORMATION:
Minimum load = 4 ohms
Minimum input: 3 mv (pre gain and master fully CW)
Maximum input: 2.3 volts (maximum signal at input before
clipping occurs)
DDT™ dynamic range: +12 dB
Input sensitivity: 1 V RMS
Two 1/4" output jacks in parallel.
With Pad (-10dB) In...
Nominal input: 205 mv
POWER OUTPUT:
160 watts (25.3 V RMS) into 4 ohms with no more than 0.1%
Minimum input: 9.5 mv (pre gain and master fully CW)
Maximum input: 7.2 volts (maximum signal at input before
clipping occurs)
THD+N
175 watts (26.46 V RMS) into 4 ohms @ 1% THD+N
EQUALIZATION:
110 watts (29.66 V RMS) into 8 ohms with no more than 0.1%
THD+N
120 watts (30.98 V RMS) into 8 ohms @ 1% THD+N
Contour: special EQ curve
Bass: +/-15 dB (shelving type)
Midrange: +/-15 dB (peaking type)
Mid Shift: 200-2 kHz
NOISE:
High: +/- 15 dB (shelving type)
High Boost: + 10 dB @ 8 kHz
Greater than 100 dB below full power @ 8 ohms typically
-105 dB
EFFECTS LOOP:
Set for -10 dB with pre @ 5, Master @ 10
TUNER SEND:
Buffered off input jack with no equalization.
XLR OUTPUT (referenced to 1 V RMS = 0dBv):
Pre-Eq selected: -2 dBv
Post-Eq selected: -3 dBv
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™
DeltaBass
Recommended Settings
Rock Setting
Set as necessary
In
Set to appropriate level
for instrument being used
Doesn’t matter when Mid is set to 0
Set as necessary
Slap Setting
to
In
Set to appropriate level
for instrument being used
Blues/Country Setting
Set as necessary
Out
Set to appropriate level for instrument being used
NOTE: DDT should be utilized for maximum speaker protection.
8
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NOTES:
9
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PEAVEY ELECTRONICS CORPORATION LIMITED WARRANTY
Effective Date: July 1, 1998
What This Warranty Covers
Your Peavey Warranty covers defects in material and workmanship in Peavey products purchased and serviced in the U.S.A. and Canada.
What This Warranty Does Not Cover
The Warranty does not cover: (1) damage caused by accident, misuse, abuse, improper installation or operation, rental, product modification or
neglect; (2) damage occurring during shipment; (3) damage caused by repair or service performed by persons not authorized by Peavey; (4) products
on which the serial number has been altered, defaced or removed; (5) products not purchased from an Authorized Peavey Dealer.
Who This Warranty Protects
This Warranty protects only the original retail purchaser of the product.
How Long This Warranty Lasts
The Warranty begins on the date of purchase by the original retail purchaser. The duration of the Warranty is as follows:
Product Category
Duration
Guitars/Basses, Amplifiers, Pre-Amplifiers, Mixers, Electronic
Crossovers and Equalizers
2 years *(+ 3 years)
2 years *(+ 1 year)
3 years *(+ 2 years)
1 year *(+ 1 year)
2 years
Drums
Enclosures
Digital Effect Devices and Keyboard and MIDI Controllers
Microphones
Speaker Components (incl. speakers, baskets, drivers,
diaphragm replacement kits and passive crossovers)
and all Accessories
1 year
Tubes and Meters
90 days
[*denotes additional warranty period applicable if optional Warranty Registration Card is completed and returned to Peavey by original retail purchaser within 90
days of purchase.]
What Peavey Will Do
We will repair or replace (at Peavey's discretion) products covered by warranty at no charge for labor or materials. If the product or component must
be shipped to Peavey for warranty service, the consumer must pay initial shipping charges. If the repairs are covered by warranty, Peavey will pay the
return shipping charges.
How To Get Warranty Service
(1) Take the defective item and your sales receipt or other proof of date of purchase to your Authorized Peavey Dealer or Authorized Peavey
Service Center.
OR
(2) Ship the defective item, prepaid, to Peavey Electronics Corporation, International Service Center, 412 Highway 11 & 80 East, Meridian, MS 39301
or Peavey Canada Ltd., 95 Shields Court, Markham, Ontario, Canada L3R 9T5. Include a detailed description of the problem, together with a copy of
your sales receipt or other proof of date of purchase as evidence of warranty coverage. Also provide a complete return address.
Limitation of Implied Warranties
ANY IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED
IN DURATION TO THE LENGTH OF THIS WARRANTY.
Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
Exclusions of Damages
PEAVEY'S LIABILITY FOR ANY DEFECTIVE PRODUCT IS LIMITED TO THE REPAIR OR REPLACEMENT OF THE PRODUCT, AT PEAVEY'S
OPTION. IF WE ELECT TO REPLACE THE PRODUCT, THE REPLACEMENT MAY BE A RECONDITIONED UNIT. PEAVEY SHALL NOT BE
LIABLE FOR DAMAGES BASED ON INCONVENIENCE, LOSS OF USE, LOST PROFITS, LOST SAVINGS, DAMAGE TO ANY OTHER EQUIPMENT
OR OTHER ITEMS AT THE SITE OF USE, OR ANY OTHER DAMAGES WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE, EVEN IF
PEAVEY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not
apply to you.
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
If you have any questions about this warranty or service received or if you need assistance in locating an Authorized Service Center, please contact
the Peavey International Service Center at (601) 483-5365 / Peavey Canada Ltd. at (905) 475-2578.
Features and specifications subject to change without notice.
10
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IMPORTANT SAFETY INSTRUCTIONS
WARNING: When using electric products, basic cautions should always be followed, including the following:
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water. For example, near or in a bathtub, swimming pool, sink, wet basement, etc.
6. Clean only with a damp cloth.
7. Do not block any of the ventilation openings. Install in accordance with manufacturer’s instructions. It should not be placed flat against a wall
or placed in a built-in enclosure that will impede the flow of cooling air.
8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A
grounding type plug has two blades and a third grounding plug. The wide blade or third prong is provided for your safety. When the provided
plug does not fit into your inlet, consult an electrician for replacement of the obsolete outlet. Never break off the grounding. Write for our free
booklet “Shock Hazard and Grounding”. Connect only to a power supply of the type marked on the unit adjacent to the power supply cord.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point they exit from the
apparatus.
11. Only use attachments/accessories provided by the manufacturer.
12. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-
supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
15. If this product is to be mounted in an equipment rack, rear support should be provided.
16. Exposure to extremely high noise levels may cause a permanent hearing loss. Individuals vary considerably in susceptibility to noise-induced
hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time. The U.S. Government’s
Occupational and Health Administration (OSHA) has specified the following permissible noise level exposures:
Duration Per Day In Hours
Sound Level dBA, Slow Response
8
6
90
92
4
95
3
97
2
1 1/2
1
1/2
1/4 or less
100
102
105
110
115
According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors to the ear
canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss, if exposure is in excess
of the limits as set forth above. To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all persons
exposed to equipment capable of producing high sound pressure levels such as this amplification system be protected by hearing protectors while
this unit is in operation.
SAVE THESE INSTRUCTIONS!
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Features and specifications subject to change without notice.
Peavey Electronics Corporation • 711 A Street • Meridian • MS • 39301
©1999
Printed in the U.S.A. 10/99
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