Rear Panel; Specifications - Fender Pro-Junior IV LTD Owner's Manual

F. POWER CORD: Connect to a grounded outlet in
accordance with the voltage and frequency ratings
specified on the rear panel of your amplifier.
G. SPEAKER JACK: Connection for the internal speaker or
an 8Ω external speaker cabinet. An 8Ω speaker load must
always be connected to the speaker jack when the unit is
on to prevent damage to the amplifier.
H. TUBE STABILIZER: A shock-absorbing stabilizer (light
gray) is installed on the output tubes to minimize the
tube vibration and microphonics that normally develop
over time. The stabilizer can be used with all output
tubes compatible with your Pro Junior IV LTD amplifier.
I. TUBES: Your new Pro Junior IV LTD amplifier comes
equipped with the highest quality tubes available,
sourced from various manufacturers worldwide. Because
of occasional irregularities in supply, the specific tube
type used in each amplifier is subject to change without
notice.
When replacing the EL84 output tubes, please note the
specific tube markings on the original tubes factory
TYPE
POWER REQUIREMENT
POWER OUTPUT
INPUT IMPEDANCE
TUBES
FUSE
SPEAKER
COVER (OPTIONAL)
DIMENSIONS
WEIGHT

REAR PANEL

SPECIFICATIONS

PR 257
70W
15W RMS minimum into 8Ω at 5% THD, 1kHz
1MΩ
Preamp 2 – 7025/12AX7A/ECC83
Output 2 – EL84/6BQ5
Internal (non-user serviceable)
1 10" 8Ω Jensen® P10R speaker
Fitted cover (PN 0054913000)
Height 14" (35.6 cm) Width 15" (38.1 cm)
20 lbs. (9.1 kg)
Product specifications subject to change without notice.
supplied with your amplifier. For example, EL84 output
tube types include, but are not limited to: GT-EL84-R;
GT-EL84-S; ST-EL84-R; etc. The installation of a different
type may require significant adjustment by a qualified
technician to avoid reduction in performance and tube life.
Additionally, Fender tests and sorts our EL84 output tubes
based on their measured performance. The sorted tubes
are labeled with a fine rating of 1-10 and may also be
labeled with a coarse rating color of BLUE, WHITE or RED.
A pair of matched EL84 output tubes with the same fine
rating (and coarse rating, if applicable) as the original tubes
will be the perfect replacement. However, replacement
tubes with a fine rating within one number of the original
tubes can be used without rebiasing the amplifier.
If you have questions or concerns, contact your Fender
dealer or authorized service center.
J. FUSE (NOT SHOWN): In the unlikely event of an electrical
fault, your Pro Junior IV LTD amplifier is protected by an
internal fuse. If the unit should suddenly stop working,
take it to an authorized service center to have the fuse
replaced and the cause of the electrical fault inspected.
Depth 8 3/4" (22.2 cm)
3