diff --git a/projects/usrpe31x/system_bd.tcl b/projects/usrpe31x/system_bd.tcl
index 733f5735f..a267a0d0c 100644
--- a/projects/usrpe31x/system_bd.tcl
+++ b/projects/usrpe31x/system_bd.tcl
@@ -191,10 +191,10 @@ ad_ip_parameter axi_ad9361_dac_dma CONFIG.SYNC_TRANSFER_START 0
 ad_ip_parameter axi_ad9361_dac_dma CONFIG.AXI_SLICE_SRC 0
 ad_ip_parameter axi_ad9361_dac_dma CONFIG.AXI_SLICE_DEST 1
 ad_ip_parameter axi_ad9361_dac_dma CONFIG.DMA_2D_TRANSFER 0
-ad_ip_parameter axi_ad9361_dac_dma CONFIG.DMA_DATA_WIDTH_DEST 32
+ad_ip_parameter axi_ad9361_dac_dma CONFIG.DMA_DATA_WIDTH_DEST 64
 
 ad_ip_instance util_upack util_ad9361_dac_upack
-ad_ip_parameter util_ad9361_dac_upack CONFIG.NUM_OF_CHANNELS 2
+ad_ip_parameter util_ad9361_dac_upack CONFIG.NUM_OF_CHANNELS 4
 ad_ip_parameter util_ad9361_dac_upack CONFIG.CHANNEL_DATA_WIDTH 16
 
 ad_ip_instance axi_dmac axi_ad9361_adc_dma
@@ -205,10 +205,10 @@ ad_ip_parameter axi_ad9361_adc_dma CONFIG.SYNC_TRANSFER_START 1
 ad_ip_parameter axi_ad9361_adc_dma CONFIG.AXI_SLICE_SRC 0
 ad_ip_parameter axi_ad9361_adc_dma CONFIG.AXI_SLICE_DEST 0
 ad_ip_parameter axi_ad9361_adc_dma CONFIG.DMA_2D_TRANSFER 0
-ad_ip_parameter axi_ad9361_adc_dma CONFIG.DMA_DATA_WIDTH_SRC 32
+ad_ip_parameter axi_ad9361_adc_dma CONFIG.DMA_DATA_WIDTH_SRC 64
 
 ad_ip_instance util_cpack util_ad9361_adc_pack
-ad_ip_parameter util_ad9361_adc_pack CONFIG.NUM_OF_CHANNELS 2
+ad_ip_parameter util_ad9361_adc_pack CONFIG.NUM_OF_CHANNELS 4
 ad_ip_parameter util_ad9361_adc_pack CONFIG.CHANNEL_DATA_WIDTH 16
 
 # connections
@@ -235,6 +235,12 @@ ad_connect  axi_ad9361/adc_data_i0 util_ad9361_adc_pack/adc_data_0
 ad_connect  axi_ad9361/adc_enable_q0 util_ad9361_adc_pack/adc_enable_1
 ad_connect  axi_ad9361/adc_valid_q0 util_ad9361_adc_pack/adc_valid_1
 ad_connect  axi_ad9361/adc_data_q0 util_ad9361_adc_pack/adc_data_1
+ad_connect  axi_ad9361/adc_enable_i1 util_ad9361_adc_pack/adc_enable_2
+ad_connect  axi_ad9361/adc_valid_i1 util_ad9361_adc_pack/adc_valid_2
+ad_connect  axi_ad9361/adc_data_i1 util_ad9361_adc_pack/adc_data_2
+ad_connect  axi_ad9361/adc_enable_q1 util_ad9361_adc_pack/adc_enable_3
+ad_connect  axi_ad9361/adc_valid_q1 util_ad9361_adc_pack/adc_valid_3
+ad_connect  axi_ad9361/adc_data_q1 util_ad9361_adc_pack/adc_data_3
 ad_connect  axi_ad9361/l_clk axi_ad9361_adc_dma/fifo_wr_clk
 ad_connect  util_ad9361_adc_pack/adc_valid axi_ad9361_adc_dma/fifo_wr_en
 ad_connect  util_ad9361_adc_pack/adc_sync axi_ad9361_adc_dma/fifo_wr_sync
@@ -243,16 +249,20 @@ ad_connect  axi_ad9361_adc_dma/fifo_wr_overflow axi_ad9361/adc_dovf
 ad_connect  axi_ad9361/l_clk util_ad9361_dac_upack/dac_clk
 ad_connect  axi_ad9361/dac_enable_i0 util_ad9361_dac_upack/dac_enable_0
 ad_connect  axi_ad9361/dac_valid_i0 util_ad9361_dac_upack/dac_valid_0
-ad_connect  util_ad9361_dac_upack/dac_data_0 axi_ad9361/dac_data_i0
+ad_connect  axi_ad9361/dac_data_i0 util_ad9361_dac_upack/dac_data_0
 ad_connect  axi_ad9361/dac_enable_q0 util_ad9361_dac_upack/dac_enable_1
 ad_connect  axi_ad9361/dac_valid_q0 util_ad9361_dac_upack/dac_valid_1
-ad_connect  util_ad9361_dac_upack/dac_data_1 axi_ad9361/dac_data_q0
+ad_connect  axi_ad9361/dac_data_q0 util_ad9361_dac_upack/dac_data_1
+ad_connect  axi_ad9361/dac_enable_i1 util_ad9361_dac_upack/dac_enable_2
+ad_connect  axi_ad9361/dac_valid_i1 util_ad9361_dac_upack/dac_valid_2
+ad_connect  axi_ad9361/dac_data_i1 util_ad9361_dac_upack/dac_data_2
+ad_connect  axi_ad9361/dac_enable_q1 util_ad9361_dac_upack/dac_enable_3
+ad_connect  axi_ad9361/dac_valid_q1 util_ad9361_dac_upack/dac_valid_3
+ad_connect  axi_ad9361/dac_data_q1 util_ad9361_dac_upack/dac_data_3
 ad_connect  axi_ad9361/l_clk axi_ad9361_dac_dma/fifo_rd_clk
 ad_connect  util_ad9361_dac_upack/dac_valid axi_ad9361_dac_dma/fifo_rd_en
 ad_connect  axi_ad9361_dac_dma/fifo_rd_dout util_ad9361_dac_upack/dac_data
 ad_connect  axi_ad9361_dac_dma/fifo_rd_underflow axi_ad9361/dac_dunf
-ad_connect  axi_ad9361/dac_data_i1 GND
-ad_connect  axi_ad9361/dac_data_q1 GND
 
 # interconnects