What is the impedance per channel - Jensen CR220X Cassette Player

Has this just started , have you added more speakers, do you have more than 1 speaker per channel? Impedance is very important and you should never have less than 4 ohms per channel, 8 is preferred..try and disconnect on channel speaker and see if it still happens. If it does reconnect speaker and remove the remaining speaker and try it. You may have a bad speaker, it sounds like you have an overload and unit is going into protection.
here is a link to manual


https://manuals.marantz.com/pm5005/NA/EN/index.php

Yes and no. If you configure the 4 speakers to have between 4-8 ohms yes. The main answer is no. If the impedance ( ohms) is too low the amp will burn out

There are a couple different ways you can wire up this speaker as it is a DVC speaker. Duel Voice coil, it has two + post and two - post. A dual 4-ohm voice coil subwoofer with its coils wired in parallel presents a 2-ohm load to your amplifier. Since an amplifier produces more wattage at a lower impedance, the parallel connection ensures you'll get the most output from your amp.
Series wiring lets you configure multiple woofers to one amplifier at an acceptable impedance. Wire both coils in series for an 8-ohm impedance, and then wire two 8-ohm subs together in parallel for 4-ohm total impedance.
You can wire each voice coil to a separate channel of your amplifier, if you prefer not to bridge your amp. Independent wiring is a nice option if you're wiring two DVC subs to a 4-channel amplifier - one voice coil per channel
Depending on what you are hooking it up to i.e. a mono amp or a bridged four channel amp. I can tell you post to wire exactly if I know how you want to hook it up and what ur hooking it up to.

make sure you are using the correct impedance speakers and the speaker wires aren't grounded to the chassis in any way. If you are running more than one speaker per channel, make sure they aren't in parallel. If only running 1 speaker per channel, then it's likely a faultu speaker or grounded connection.

Looks like you can use minimum 2 ohms, max 16 ohms

LFC Impedance Sensing

CS Series amplifiers feature innovative circuitry for safe operation into any load. When an amplifier senses a load that

overstresses the output stage, the Load Fault Correction circuit adjusts the channel gain to a safe level. Extreme load

fault under high power levels will cause the signal to be muted for the associated channel. This method of outputstage

protection is far more effective than the standard limiting found on conventional power amplifiers. The LFC
circuit is sonically transparent in normal use and unobtrusive when activated.

Power:
2 ohm stereo (per channel): 975W
4 ohm stereo (per channel): 660W
8 ohm stereo (per channel): 400W
4 ohm bridge-mono: 1950W
8 ohm bridge-mono: 1320W

Load Impedance: Safe with all types of loads. Rated for 4 and 8 ohms in Stereo mode, 4 ohms in Bridge-Mono mode

Voltage Gain to 1-kHz, 8-ohm rated output,
CE 1000:
30.5-dB gain at 1.4-volt sensitivity;
26-dB gain at 2.34-volt sensitivity.
CE 2000:
32.1-dB gain at 1.4-volt sensitivity;
26-dB gain at 2.83-volt sensitivity.

Required AC Mains: 50/60 Hz (North American units are 60 Hz only); 100, 120 and 230-240 VAC (+/-10%) units are available.
AC Line Current,
100 Volts: 11.4 A;
120 Volts: 9.5 A;
230-240 Volts: 5.0 A;
At Idle: All amps draw no more than 90 watts.
AC Line Connector: NEMA 5-15P (15 A).

The Peavey CS4080HZ is intended to place 2,040 watts
per channel into four-Ohm-rated speaker
impedances. The "HZ" suffix is intended
to state the amplifier has a relatively high
impedance output and is optimized for no
lower than four-Ohm loads. Are you strapping in Bridged or Stereo Mode? Bridged Mono Operation
Both amplifier channels can be bridged together to make a very powerful single-channel monaural amplifier. Use
extreme caution when operating in the bridged mode; potentially lethal voltage may be present at the output
terminals. To bridge the amplifier, depress the rear panel Bridge switch to the IN position. Direct the signal to channel
A's input and connect the speakers across the hot outputs (the "+" binding posts) of channels A and B. Only channel
A's input attenuator is active while in Bridge Mono mode. Both connectors are strapped together, so either connector
can be used with a patch cable to drive the input of another amplifier.
Unlike the stereo mode, in which one side of each output is at ground, both sides are hot in bridged mode. Channel A's
side is the same polarity as its input with the minimum nominal load impedance being 4 ohms (equivalent to driving
both channels at 2 ohms) in bridged mode. Driving bridged loads of less than 4 ohms will activate the DDT
circuitry, resulting in a loss of power, and may also cause a thermal (overheating) overload.
Therefore, check the impedance of the cabs for each mode. Remember, if you connect two individual speakers in Parallel (+ to + and - to -) you cut the impedance in half. Two 8 ohm speakers in parallel now have a load of 4 ohms. Series connection + to - to + to -, will double the impedance. Two 8 ohm speakers will have a load of 16 ohms.
I have actually taken a two speaker cab with a 4 ohm impedance and opened up the back to re-do the wiring. I rechecked the impedance with a ohm meter. So yes, be careful. Whatever you do, keep the speaker lengths as short as possible. Buy really good speaker wire or if you make your own, go with 10 gauge wire.

The ZX1000 is a two ohm stable amplifier, so this means that you have to connect your two voice coils in series to give you around 8 ohms impedance per speaker, then connect your two speakers in parallel to give you 4 ohms impedance on the single mono channel on the amplifier. I recommend you connect it up in the following manner:

1 ohm will draw too much current.those are designed for a 2 channel 2 ohm drive for each sub.running 4 ohms will be easier on the amplifier and since impedance is not constant it may run 3 ohms at some frequencies anyway. another solution if your power amp is bridgeable....put the coils in series on each woofer making 4 ohms.then parallel the two 4 ohms to make 2 ohms and run the amp in bridge mode at 2 ohms.since bass is omnidirectional,you can do it